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Best Tumbler

last updated May 25, 2019

Sometimes, it can be tough to find a mug, bottle, or tumbler that works for you for what you need it for. Sure, even the best tumbler ever can adequately hold liquid but as you know, there is much more to it than that. After all, if you need your drinks to be kept cold or hot for several hours at a time, the container you keep them in needs to be heavily insulated.

It also can’t sweat, needs to hold as much liquid as you desire and probably should be made of stainless steel.

However, and this guide is going to focus strictly on tumblers, finding options on the market that suit you can prove to be a more difficult task than it probably should be. But, with the help of this guide, hopefully, that process is simplified for you.

In a Hurry? The test winner after 12.75 hrs of research

icon
YETI RAMBLER
91.2/100 our score
Insulation
93
Capacity
90
Materials
93
Features
87
Ease of Use
93
YETI RAMBLER
Why is it better?

The lid is shatter-resistant

Engineered with double-walled insulation

A 30-ounce option is available

In a Hurry? Editors choice:
YETI RAMBLER
Test Winner: YETI RAMBLER
Amazon Link
Researched Sources
40
Researched Sources
Reviews Considered
28k
Reviews Considered
Hours Researching
12.75
Hours Researching
Products Evaluated
19
Products Evaluated
Sorting Options
Insulation Capacity Materials Features Ease of Use By Default
Rank
PictureProduct
Name
Rating
Shops
#1
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.2
Insulation
93 %
Capacity
90 %
Materials
93 %
Features
87 %
Ease of Use
93 %
Price Comparison Last Updated (17.06.19)
Amazon Link
$69.99
#2
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.8
Insulation
93 %
Capacity
91 %
Materials
93 %
Features
85 %
Ease of Use
92 %
Price Comparison Last Updated (17.06.19)
Amazon Link
$39.95
#3
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.4
Insulation
92 %
Capacity
90 %
Materials
93 %
Features
84 %
Ease of Use
93 %
Price Comparison Last Updated (17.06.19)
Amazon Link
$23.95
#4
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.8
Insulation
93 %
Capacity
93 %
Materials
93 %
Features
80 %
Ease of Use
90 %
Price Comparison Last Updated (17.06.19)
Amazon Link
$19.45
#5
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.6
Insulation
93 %
Capacity
88 %
Materials
94 %
Features
85 %
Ease of Use
88 %
Price Comparison Last Updated (17.06.19)
Amazon Link
$22.69
#6
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89
Insulation
93 %
Capacity
86 %
Materials
93 %
Features
82 %
Ease of Use
91 %
Price Comparison Last Updated (17.06.19)
Amazon Link
$17.99
#7
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87.2
Insulation
91 %
Capacity
85 %
Materials
91 %
Features
80 %
Ease of Use
89 %
Price Comparison Last Updated (17.06.19)
Amazon Link
$13.68
#8
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87
Insulation
91 %
Capacity
87 %
Materials
90 %
Features
75 %
Ease of Use
92 %
Price Comparison Last Updated (17.06.19)
Amazon Link
$13.49
#9
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
86.8
Insulation
90 %
Capacity
87 %
Materials
82 %
Features
84 %
Ease of Use
91 %
Price Comparison Last Updated (17.06.19)
Amazon Link
$12.75
#10
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
85.2
Insulation
93 %
Capacity
82 %
Materials
88 %
Features
85 %
Ease of Use
78 %
Price Comparison Last Updated (17.06.19)
Amazon Link
$27.99
In Depth Review Top 10
  • YETI RAMBLER YETI RAMBLER
  • HYDRO FLASK HYDRO FLASK
  • BEAST BEAST
  • RTIC RTIC
  • PELICAN TRAVELER PELICAN TRAVELER
  • HOMITT HOMITT
  • CONTIGO CONTIGO
  • ATLIN ATLIN
  • OZARK OZARK
  • ZOJIRUSHI ZOJIRUSHI
Table of contents
  • Criteria Used for Evaluation
  • Frequently Asked Questions
  • Sources

OUR TOP PICKS FOR THE BEST TUMBLERS

1. YETI RAMBLER

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
91.2
Yeti Tumbler - Yeti Rambler
Amazon Link
Insulation
93
Capacity
90
Materials
93
Features
87
Ease of Use
93
best offer for today
Amazon Link
$69.99
Pros:

The lid is shatter-resistant

Engineered with double-walled insulation

A 30-ounce option is available

Cons:

It will not fit into most cup holders

The lid can’t be completely covered

No, the Yeti Rambler is not a perfect Yeti tumbler. But, it might just be the standard-bearer to which every other great tumbler is compared to. It has earned that distinction with its fantastic design.

Read more

Insulation

The Yeti Rambler is a lot like the other top tumblers on the market in that it has been over-engineered with double-walled insulation. Not only will your drinks remain cold or hot but the exterior is also not going to sweat.

Capacity

Yeti provides you with two different capacity options. You can go with the standard 20-ounce model or if you know you will need more liquids throughout the day, the 30-ounce one.

Materials

As with virtually every other model in the world, this is designed with 18/8 stainless steel. This is one of the most popular compositions of the metal so it makes sense.

Lid Design

Even though the lid is shatter-resistant, multiple users have noted that the drinking hole is always exposed. Due to this, accidental spilling can still persist.

Ease of Cleaning

For the record, the lid and vessel of this model are dishwasher-safe. Of course, you can always hand-wash them if you are concerned about the long-term effects of dishwashers.

Overall

Until another manufacturer decides to step up to the plate, the Yeti Rambler will remain the cream of the crop when it comes to tumblers.

2. HYDRO FLASK

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.8
Hydro Flask Tumbler
Amazon Link
Insulation
93
Capacity
91
Materials
93
Features
85
Ease of Use
92
best offer for today
Amazon Link
$39.95
Pros:

The vessel is spectacular

Different capacities are available

Backed by a limited lifetime warranty

Cons:

The lid could use some improvements in its design

If the lid was as well-designed as the vessel is with this model, it would have probably ascended past the Yeti Rambler. The Vessel is literally that good but the lid has its drawbacks.

Read more

Insulation

Thanks to the double-walled and vacuum insulated design, this can keep your drinks hot for up to 6 hours and cold for up to 24 hours.

Capacity

There are two different sizes that you can select from here. Hydro Flask provides you with the options of either 22 or 32 ounces.

Materials

The food-grade, 18/8 stainless steel that encompasses this model is not only admired for its purity and strength but also for its protection against flavor transfer.

Lid Design

Unfortunately, the mouthpiece of this tumbler can’t be closed completely. As such, spills can be a potential issue and heat can escape a bit quicker. This is probably done for convenience but the ability to be able to close the opening on the top would have been appreciated.

Ease of Cleaning

Granted you follow the instructions for cleaning this, you should have little to no issues when you go to clean this.

Overall

Just a little more thought needed to go into the design of the lid. Other than that, you are looking at a design that is as close to perfect as you are going to see.

3. BEAST

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.4
Beast is one of the best tumblers
Amazon Link
Insulation
92
Capacity
90
Materials
93
Features
84
Ease of Use
93
best offer for today
Amazon Link
$23.95
Pros:

Comes with several additional accessories

Backed by a lifetime warranty

Designed with an electro-polished interior

Cons:

Not fully leakproof

Though the Yeti Rambler gets a lot of the accreditation from consumers, this model is right here with it in terms of effectiveness and popularity. Of course, it also comes at a fraction of the price.

Read more

Insulation

Thanks to the superior finishing of this model (both inside and out), it is not only going to keep your drinks at the temperature they need to be but it is also not going to sweat.

Capacity

Once again, this is an option that is offered in a few different sizes. If the 20-ounce capacity is not going to be enough for you then you can opt for the 30-ounce option.

Materials

In addition to the 18/8, food-grade stainless steel exterior, this is also designed with an electro-polished interior. This is going to prevent any unwanted transfer of flavors and is also going to prevent rust.

Lid Design

The lid is advertised as being splashproof but it is certainly not spill-proof. Do not allow this to tip over because if you do, it is probably going to leak out some liquid.

Ease of Cleaning

To simplify the cleaning process, the straws, lid, and vessel that come with your purchase are all dishwasher-safe.

Overall

Again, from top to bottom, this really is a beautiful design. Of course, ironically, the “top” is the one drawback as an improved lid would have taken this over the top.

4. RTIC

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.8
Rtic Tumbler
Amazon Link
Insulation
93
Capacity
93
Materials
93
Features
80
Ease of Use
90
best offer for today
Amazon Link
$19.45
Pros:

The exterior is not going to sweat

Double wall vacuumed and made of stainless steel

It is very easy to clean

Cons:

The size of the lid is proprietary

It can leak at an angle

In addition to its overall impressive design, this does come in a massive 40-ounce capacity vessel making it one of the largest tumblers out there. It is also made of 18/8 stainless steel, so there is that.

Read more

Insulation

Yep, this is another design that comes with double-walled vacuum insulation. As such, it is able to hold ice for up to 24 hours (depending on the ambient temperature, of course).

Capacity

As mentioned, this does come in a 40-ounce option. Then again, there are also options for 20 and 30 ounces if 40 ounces is simply too large for your needs.

Materials

There is no surprise here as this is designed of 18/8 stainless steel. As you can see, this is pretty much the standard for tumblers.

Lid Design

The good news is the lid is designed to be splashproof. The bad news, though, is that it will still leak if it is at an angle. Even worse yet is the lid has a unique size (which makes it harder to replace for a different one).

Ease of Cleaning

One of the nice aspects of stainless steel kitchenware is they are typically easy to clean. And, you guessed it, this right here is no different.

Overall

In addition to everything else, which also makes this a compelling option is that it comes in a plethora of different colors. Of course, its insulating properties are where the money is at.

5. PELICAN TRAVELER

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.6
Pelican Traveler
Amazon Link
Insulation
93
Capacity
88
Materials
94
Features
85
Ease of Use
88
best offer for today
Amazon Link
$22.69
Pros:

The body is ergonomically designed

Backed by Pelican’s lifetime guarantee

It insulates drinks very well

Cons:

The lid does not prevent spills

You know, this design epitomizes the strengths and weaknesses of most tumblers on the market today, quite frankly. It is designed with fantastic insulating capabilities but is not engineered with a leakproof lid.

Read more

Insulation

One thing is for sure, the Pelican Traveler will retain the temperature of your drinks. After all, it is designed with double-walled vacuum insulation (and also sports a copper-plated interior wall).

Capacity

With a 32-ounce capacity, this should be plenty large enough for most of you out there.

Materials

Even if something were to happen and the 18/8 stainless steel were to break or chip, this is backed by Pelican’s lifetime guarantee. In short, if you end up breaking this, they will replace it.

Lid Design

One aspect that stands out about this lid is the fact that it can be closed completely. Yet, at the same time, several buyers have noted that spilling can still persist.

Ease of Cleaning

One reviewer did make mention of the fact that this is not dishwasher-safe. To err on the side of caution, stick with hand washing this particular model.

Overall

Without question, the Pelican Traveler is one of the best tumblers in the business. And, even though its slide lid is not flawless, it is at least different from the rest of the competition.

6. HOMITT

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89
Homitt Best Tumbler
Amazon Link
Insulation
93
Capacity
86
Materials
93
Features
82
Ease of Use
91
best offer for today
Amazon Link
$17.99
Pros:

Backed by a 60-day money-back guarantee

Comes with several great accessories

Built with food-grade stainless steel

Cons:

The handle does not stay on the best

The lid is not leakproof

Most tumblers are not designed with physical handles and the first aspect you may notice about this option is that it does sport one. That is just one of the many features to love about it.

Read more

Insulation

Not only is this not going to sweat but it can keep your cold and hot drinks at suitable temperatures for up to 24 hours and 6 hours, respectively. This is all thanks to the double-walled vacuum insulation.

Capacity

Hopefully, 30 ounces is okay with you because that is what you are going to get with this tumbler.

Materials

Do note that this is made of 304 stainless steel which is another name for 18/8 stainless steel. It is the same food-grade, high-quality stainless steel used wildly in other models.

Lid Design

This is equipped with a transparent slide lid, for the record, but various users have noted that it will not seal completely. Also, as for the handle, it is nice to have but is not attached very well.

Ease of Cleaning

With your purchase, a dedicated cleaning brush is included. This can be used for the tumbler itself and also for the included straws.

Overall

The fact that this is actually equipped with a handle is compelling in and of itself. Top that with excellent insulating properties and you have yourself an incredibly solid option.

7. CONTIGO

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87.2
Contigo Tumbler
Amazon Link
Insulation
91
Capacity
85
Materials
91
Features
80
Ease of Use
89
best offer for today
Amazon Link
$13.68
Pros:

It is easy to grip and hold

Designed of stainless steel

Available in different sizes

Cons:

It can be hard to open at times

It leaks from the mouthpiece

Right from the get-go, you will notice that this model is equipped with a textured grip on the exterior. In addition to the stainless steel makeup, this makes it very compelling.

Read more

Insulation

This mug is designed with Thermalock vacuum insulation. What this means is your cold drinks will stay so for up to 18 hours while your hot drinks up to 7 hours.

Capacity

There are three capacity options that you can go with (16, 20 and 24 ounces). While not the largest selection of sizes available, it is nice to have a few different options.

Materials

Do not worry; this is not made of cheap plastic or metal. Instead, inside and out, this is made of high-quality stainless steel.

Lid Design

The SnapSeal lid is not perfect as it will leak from the mouthpiece (if turned at the right angle). Additionally, it can also be very difficult to open at times. This is good for creating a superior seal but bad when you need to add more liquid.

Ease of Cleaning

It is worth noting that the lid can be used in dishwashers (on the top rack only) but the vessel can’t be. As is noted in the product description, you will need to hand-wash this portion.

Overall

Well, would you look at that? This is another fantastic option that comes with a somewhat flawed lid. That just seems to be the name of the game. But, this is a compelling option regardless.

8. ATLIN

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
87
ATLIN
Amazon Link
Insulation
91
Capacity
87
Materials
90
Features
75
Ease of Use
92
best offer for today
Amazon Link
$13.49
Pros:

It is insulated very well

Sports a very sleek design

Comes with other accessories

Cons:

The lid is just not very good

In addition to the vessel and lid, this also comes packaged with a cleaning tool and a straw that can be reused. Too bad the lid was not better, as a whole, though.

Read more

Insulation

With its dual-layer insulation, this is able to keep your drinks cold for up to 24 hours and hot for up to 6 hours.

Capacity

Past the fact that this can hold 30 ounces of liquid, it is also noted that this is optimized to fit into standard-size cup holders.

Materials

Being completely designed of stainless steel, you can take comfort in the fact that knowing this is not made with cheap materials.

Lid Design

Unfortunately, the lid has been known to break on consumers. As a whole, it is the weakest part of this design (which is not much of a surprise).

Ease of Cleaning

If you so choose to, you can place this in your dishwasher as it is rated to handle it. Of course, you can always opt for hand washing.

Overall

If you can just accept the fact that the lid is fragile, you can invest in an affordable, highly-insulated tumbler. It is truly a good design overall.

9. OZARK

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
86.8
Ozark Tumbler
Amazon Link
Insulation
90
Capacity
87
Materials
82
Features
84
Ease of Use
91
best offer for today
Amazon Link
$12.75
Pros:

Sports powder coated stainless steel

Has a 30-ounce capacity

It is double-walled

Cons:

Several users have received theirs damaged

The lid can’t be fully closed

This is yet another option that has been well-received by most reviewers. It is not flawless but, at the end of the day, it will be suitable for most of you.

Read more

Insulation

Though this is nothing out of this world, it is designed with double-walled insulation. As such, this is ideal for both hot and cold beverages.

Capacity

For most people, 30 ounces is going to be a suitable size for a tumbler. It is one of the most common sizes, after all.

Materials

Okay, so the stainless steel construction is ideal. However, multiple consumers have received their model with noticeable damage (dents, scratches, etc.).

Lid Design

The lid is mildly sufficient but it is not going to prevent spills. Thus, you do need to be careful to not spill this in your vehicle.

Ease of Cleaning

It is worth noting that previous consumers have successfully placed this in their dishwashers without damage. Then again, long-term damage could still be a factor to consider.

Overall

In spite of the issues that Amazon customers have had with quality control, this is yet another suitable tumbler that serves its purpose well.

10. ZOJIRUSHI

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
85.2
Zojirushi Tumbler
Amazon Link
Insulation
93
Capacity
82
Materials
88
Features
85
Ease of Use
78
best offer for today
Amazon Link
$27.99
Pros:

Features a corrosion-resistant surface

Fits in standard-size cup holders

Insulated very well

Cons:

The metal is quite thin

Sports a rather cumbersome lid

In spite of its flaws, this has received critical acclaim from the consumer base. Literally, thousands of buyers have raved about the design of this model. Not bad, huh?

Read more

Insulation

This has a tendency of keeping hotter drinks insulated for much longer than others on the market. In large part, this is thanks to the vacuum insulation technology that is implemented.

Capacity

In terms of size, this is pretty small when compared to others. For the record, the two capacity options are 12 and 16 ounces.

Materials

Even though the metal is thinner than what you may be expecting, it is 18/8 stainless steel. Additionally, the interior is coated with a SlickSteel finish.

Lid Design

In spite of the cumbersome design, the flip lid is effective at what it is supposed to do. It can be opened with one hand but also secured with its safety lock.

Ease of Cleaning

Quite a few previous buyers have actually pointed out that this can be difficult to clean. It is a major issue when you use this with drinks that tend to leave residue behind (such as tea and coffee).

Overall

It is easy to see why so many consumers have fallen in love with this design. It has its limitations, certainly, but most of you will be able to live with them.

Criteria Used for Evaluation

Insulation

If you want the model you pick to keep your drinks cold or hot, it needs to be insulated.

One of the benefits of buying an insulated tumbler is that it will be capable of keeping your drink either hot or cold. However, it can’t magically pull this off unless it is designed correctly. And, this is why it becomes vital to assess the insulating properties of any model if you want it to retain the temperature of your drink.

But, how do you do that? Well, there are two major insulating technologies (so to speak) that you need to be knowledgeable of. The first is what is known as double-walled construction. As the name suggests, this literally consists of two walls (an inner and an outer one) to better retain its temperature for longer periods. However, most models with double-walled construction will also typically employ a vacuum.

Now, this is another element to take into the fold. Those with a vacuum will essentially slow the spread of heat. After all, a vacuum consists of little to no air. So, in other words, if you want the best insulation possible, go with models that sport double-walled vacuum insulation. Of course, you also need to remember that the ambient temperature will affect how long your drinks will stay cold or hot.

Capacity

You need to buy according to your needs, right? Well, you better get the right size then.

Whenever you are buying products such as tumblers, you will always need to buy them based on your needs. And, this is never going to be more prevalent than with the capacity. As subtle a feature as this may seem to be on the surface, it actually is one of the most vital for you to pay attention to.

After all, if you do not buy a model that is large enough for your needs, it is not going to be efficient for you. Then again, the opposite could be true if you buy a model that is simply too large and bulky. It really all comes down to you and your needs and preferences, quite frankly.

Keeping all this in mind, how large are tumblers typically designed, you may be thinking? Well, if you took the time to look through the above products, you probably noticed that the capacities can vary quite a bit. But, most models will range anywhere from 16 to 40 ounces. Clearly, there are exceptions but you get the point. Of course, there is something else you need to remember. If you desire to buy a tumbler that fits into the cup holders in your vehicle, it needs to be sized appropriately.

Materials

Most of the time, you will see tumblers made out of stainless steel. That just seems to be the material of choice.

Did you notice something similar about all the above products? Indeed, they are all made of stainless steel and this is not a coincidence. Sure, there are tumblers on the market that are made out of plastic but they should really just be avoided.

Not only do they not look as good but they also will pale in comparison to stainless steel when it comes to their insulating capabilities. So, this section is wrapped up then, right? All you need to do is get a stainless steel model as they are all made the same, correct? Nope, it is not that easy as not all stainless steel is made the same.

You see, there are different grades of this metal. Thankfully, most models on the market will utilize 18/8 stainless steel (which is also known as 304 grade) and that is because this particular grade is often used for food dining and preparation. The 18/8, for the record, merely refers to the metal composition (with the 18 percent representing chromium and the other 8 percent representing nickel).

What is nice with this composition is the chromium will bind with oxygen that is on the surface to provide a layer of rust protection to the metal. Meanwhile, the nickel adds resistance to corrosion. Oh, and speaking of which, you may also see some models with special interior linings for enhanced protection against corrosion and rust.

Features

This section is all about the design of the lid (and the handle if one is present).

Most tumblers on the record will not be equipped with handles, for the record, so that means this section is really all about the lid. Without question, the lid is one of the most important portions of this type of product. However, from brand to brand, the lids may be entirely different.

There are several different design styles and types of lids that you will see. And, depending on the size, some of them may even be able to be interchanged for others. Yet, you will not find very many of them that will offer 100 percent leakproof performance. Heck, even one of Yeti’s lids is going to allow some liquid to leak if the vessel is turned or tipped over. This is just something you may have to deal with.

Now, as there are different lids out there, there are different features you need to look for. Some lids will be designed to slide open, some flipped open and others will be designed with mouthpieces that are always open. It all depends on your preferences but, no matter what, you may want to avoid spilling your tumbler as the lid is probably not going to prevent all the liquid from escaping.

Ease of Use

This is really about how easy your tumbler is to clean, quite frankly. And, if you should place it in the dishwasher.

For those of you who have dishwashers installed in your homes, this section will be of particular interest to you. The good news for you is that some sellers out there do rate their tumblers to handle the washing cycle of a dishwasher. They will also typically inform you of such by claiming their model is dishwasher-safe.

But, that does not mean that all the components will be. For example, some may inform you that the lid can handle the top rack of the machine but not the main body. Meanwhile, others will rate each and every one of the parts as dishwasher-safe. But, in spite of this, should you place stainless steel in a dishwasher, in the first place?
To err on the side of caution and to take the safe route, you may just want to hand-wash your model (no matter if it is dishwasher-safe or not). The reality is stainless steel can oftentimes survive going through this machine with no damage. Yet, the abrasive nature of them can take its toll on certain kitchenware over time. And, due to the fact that stainless steel is typically easy to clean by hand, to begin with, the answer could be clear.

Expert Interviews & Opinions

Most Important Criteria (According to our experts opinion)
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#1
ico Insulation
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#2
ico Capacity
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#3
ico Materials
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#4
ico Features
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#5
ico Ease of Use
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expert tips icon
Insulation

Without insulation, the tumbler you go with will be incapable of retaining its internal temperature. Much like with your home, it needs to be insulated to prevent any heat or cold air from escaping. Thankfully, most models on the market will be heavily insulated. Oftentimes, you will see them sport double-walled vacuum constructions for superior insulating capabilities. If you want the best then you will need to look for such models.

Capacity

No one can tell you what size you need to buy as that is all up to you and your needs. If you need a model to last you most of the day, you may want to shoot for a much larger capacity (say 30 or 40 ounces). But, if the tumbler will only be used sparingly then you may be able to get away with a much smaller one. Again, it all comes down to you.

Materials

You are in for a rude awakening if you do not like stainless steel products. Even though there are tumblers out there that will be made of different materials, the majority of them will be made of stainless steel. But, as you will find out, not all stainless steel is the same as there are different grades of the metal. Choosing the appropriate grade is as important as anything.

Frequently Asked Questions

q: Is stainless steel microwave-safe?

a:

In general, you should probably just avoid placing any type of metal in your microwave. There may be exceptions to the rule but, in this case, it should just be avoided. After all, you could always just transport the liquid from a container (one that you can place in the microwave) to the tumbler. This would eliminate the issue of needing to place the actual stainless steel tumbler in the microwave, in the first place.

q: Are there any concerns about toxins?

a:

One of the main issues with plastic food products is that there is always a risk of toxins if the plastic is not BPA-free. That is not really an issue with stainless steel, though, and it is one of the more reasons why it is so popular for all types of kitchenware. Now, what you do need to worry about with this metal, though, is if it scratches. If this happens, traces of chromium and nickel could leach into your drinks.

q: Can you place them in the freezer?

a:

Alright, so you should not be placing these in the microwave. Well, what about the freezer? For whatever reason you wanted to do this, you should be safe too. Now, it is worth pointing out that models that are vacuum sealed are better suited for it. Due to the fact that vacuum insulated designs have little to no air molecules present, there is nothing that can swell in the freezer.

q: Will stainless steel get hot in the sun?

a:

In general, stainless steel is not going to get too hot to the touch. After all, it would make these tumblers all-but useless with hot drinks such as coffee. But, what about when the steel is baking in the sun? Let’s say that your model is left in the sun all day, will the steel be hot then? Typically, the steel will still not be burning hot but your drink inside may no longer be as cold as it once was (depending on the ambient temperature, of course).

q: Are there included warranties?

a:

Whenever you are talking about warranties of any kind, you always need to understand that it all depends on the seller. Some sellers may offer multiple year warranties that cover everything from manufacturer defects to accidental incidents.

Meanwhile, others may only cover you for a month or so (and others will include no warranty whatsoever). It all depends on the seller but if you take Yeti as an example, they offer a five-year warranty against workmanship defects. Then again, even this warranty has fine print that you need to read and understand.

q: Can you purchase lids separately?

a:

Much like with any included warranties, whether or not you can buy lids separately is going to come down to the seller. But, with that said, as long as you can find a lid that properly fits the vessel you have, you should be fine. Now, that does not necessarily mean that the particular lid you buy will be optimized for the specific tumbler you own. For the record, buying them separately may come into play if the one you own breaks or is so poorly designed that you can’t take it anymore.