A good thermos does one quiet job: it keeps the coffee you made at six hot enough to enjoy at noon. A working kitchen thinks about this the way it thinks about any hot holding. Heat leaves through the opening, so the seal matters as much as the steel, and a bottle that has been warmed first starts ahead of one that has not.
This guide covers vacuum bottles and one steel carafe, the kind that keep a drink hot for hours. For soup, chili or a hot lunch, a wide food jar is a better tool. For a cup you sip through the morning, see our guide to tumblers for hot drinks.
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Quick verdict: which steel thermos to buy
For most people, the best stainless steel thermos is the Stanley Classic Vacuum Bottle, 2 qt: Outdoor Life named the 1.1-quart Classic best overall, its stopper did not leak, and it still read 104°F after 24 hours. That size was out of stock when we checked, so we link the 2-quart. For the longest heat, and for pouring to share, the Contigo Thermalock led the Homegrounds comparison at 32 hours. For one drink in the car, choose the Hydro Flask 16 oz with Flex Sip Lid.
Below are eight bottles from seven makers, each with one honest reason to skip it.
Five steel thermoses side by side
Our five standout picks, one for each kind of buyer, with independent heat results where we found them and the maker’s claim where we did not. All eight are reviewed in full below.
| Thermos | Best for | Capacity | Heat result or claim | Buy on Amazon |
|---|---|---|---|---|
Stanley Classic Vacuum Bottle, 2 qtBest overall
|
Long days, one big bottle | 2 qt | 104°F at 24 hours (1.1 qt, Outdoor Life) | View on Amazon |
Contigo Thermalock Vacuum Flask, 1.2 LBest for all-day heat
|
Longest heat, sharing | 1.2 L | Coffee hot at 32 hours (Homegrounds) | View on Amazon |
Hydro Flask Wide Mouth with Flex Sip Lid, 16 ozBest for one person
|
Commute, one drink | 16 oz | Up to 12 hours (listing) | View on Amazon |
Thermos Icon Series Bottle, 32 ozBest stated hot time
|
A full quart for one | 32 oz | Up to 14 hours (listing) | View on Amazon |
Zojirushi SH-HC Stainless Vacuum Carafe, 1 LBest for the table
|
Table service at home | 1 L | Not stated | View on Amazon |
Product images from Amazon. Outdoor Life and Homegrounds ran their tests under different conditions, so compare within each source rather than across them.
Our picks for the best stainless steel thermos
The first two are the bottles to carry when heat is the point. After those come a personal bottle, a quart for one, a carafe for the table, a steel-capped bottle for clean taste, a slimmer Stanley and one bottle meant for cold drinks. All eight have stainless steel bodies, and none has a glazed or ceramic drinking surface.
1. Stanley Classic Vacuum Bottle, 2 qt – The Long-Haul Green Bottle
This is the bottle most people picture when they hear the word thermos: hammertone green, a folding handle, and a lid that turns into a cup. This listing is the 2-quart size, about 64 ounces, which is enough coffee for a small crew or for one person across a long double shift. The 1.1-quart size that the tests below used was out of stock when we checked; Stanley sells the Classic in 1.1, 1.5 and 2 quarts.
The numbers worth reading are the independent ones, and they come from the smaller 1.1-quart bottle, not this one. Outdoor Life named the 1.1-quart Classic its best overall thermos in a roundup updated in February 2024. In its hot-water test the bottle read 137°F at 3 hours, 121°F at 12 hours and 104°F at 24 hours. The site also dropped its bottles on concrete from shoulder height, and it reported that the screw-in stopper seals tight and does not leak. Homegrounds ran its own test and found that water starting at 200°F took 21 hours to fall below 120°F, with the bottle sealed at room temperature.
Stanley’s listing for the 2-quart claims up to 32 hours hot or cold. Treat that as a best case. Outdoor Life’s reading shows a drink that is warm rather than hot by the end of that window, and you should expect the same from every bottle on this page.
The body is 18/8 stainless steel, and the bottle is listed as made with BPA-free materials. Stanley’s FAQ says the vacuum seal at the base uses an industry-standard pellet whose sealing material includes lead, that the area is then covered with a durable stainless steel layer, and that no lead is on any surface that touches you or the contents.
Why we like it
- Outdoor Life’s best overall pick, in the 1.1-quart size
- The 1.1-quart read 104°F at 24 hours in Outdoor Life’s test
- Screw-in stopper did not leak, per Outdoor Life
- Lid doubles as a cup, and the handle folds
- 18/8 stainless steel body, lifetime warranty per the listing
Key specifications
| Model | 10-01289-006 (part number) |
|---|---|
| Capacity | 2 qt (about 64 oz) |
| Hot claim | Up to 32 hours (listing) |
| Cold claim | Up to 32 hours (listing) |
| Stopper or lid | Leak-resistant wide-mouth lid (listing) |
| Serving cup | Yes, the lid |
| Cleaning | Not stated |
| Warranty | Lifetime (listing) |
Why we recommend it
It suits anyone who wants one big bottle for the truck, the job site or a tailgate, and who plans to pour into a cup. The Classic has the strongest independent record of any bottle here, though that record is for the 1.1-quart size, and the 2-quart is built for sharing rather than for carrying all day.
Skip it if you want to sip on the move. Homegrounds notes it takes two hands to use, that the opening is narrow for ice despite the wide-mouth name, and that the 1.1-quart size alone weighs 1.85 pounds empty; the 2-quart is bigger and heavier.
Pros and cons
Pros
- Strong independent heat results
- Stopper reported leak-free
- Cup and folding handle built in
- Size suits one long day or two people
Cons
- Two hands to pour and drink
- 1.85 pounds empty, per Homegrounds
- Plastic handle can break on a hard hit, per Outdoor Life
- Base seal contains lead, covered per Stanley
2. Contigo Thermalock Vacuum Flask, 1.2 L – A Quarter Turn to Pour
This is the largest bottle in the guide after the 2-quart Stanley, and the one with the best single result. Homegrounds ranked the Thermalock above the Stanley Classic and reported that it kept coffee hot for 32 hours in its heat-retention test. That is one reviewer’s result, not a repeated test, so take it as a good sign rather than a guarantee.
The listing describes a dual-seal lid with a 360-degree pour spout and a quarter-turn twist to open, so it pours at any angle without being taken apart. That also makes it the easiest bottle here to share. The lid doubles as a cup, a folding handle has a soft grip, and the listed size is 1,200 ml. Empty weight is listed at 800 grams, about 1.75 pounds.
Read the hour claims carefully. The listing title says up to 35 hours hot and 60 hours cold, while a feature line on the same page says the reverse. We would plan around neither figure and treat the Homegrounds result as the better guide.
Care takes a little more attention than most. The pour spout is dishwasher safe, but the listing says to hand wash the lid and the 18/8 stainless steel body.
Why we like it
- Best heat result in the Homegrounds comparison
- Quarter-turn lid with a 360-degree pour spout
- Lid doubles as a cup
- Folding handle with a soft grip
- 18/8 stainless steel, BPA-free per the listing
Key specifications
| Model | 2095795 |
|---|---|
| Capacity | 1.2 L (about 40.6 oz) |
| Hot claim | Conflicting on the listing (see above) |
| Cold claim | Conflicting on the listing (see above) |
| Stopper or lid | Dual-seal twist lid, 360-degree spout |
| Serving cup | Yes, the lid |
| Cleaning | Hand wash body and lid; spout dishwasher safe |
| Warranty | Not stated |
Why we recommend it
It suits long shifts, road trips and a pot of café de olla going to the bleachers. The easy pour and the size make it the best bottle here for two or three people.
Skip it if you want one you can drop in the dishwasher, or you dislike a listing that disagrees with itself. Only the spout is rated for the dishwasher.
Pros and cons
Pros
- Top heat result from Homegrounds
- Pours at any angle
- Cup and handle built in
- Large 1.2 L capacity
Cons
- Listing’s hour claims contradict each other
- Body and lid are hand wash
- About 1.75 pounds empty
- No lead statement found on the listing
3. Hydro Flask Wide Mouth with Flex Sip Lid, 16 oz – One Cup for the Car
Not every thermos needs to feed a crew. This 16-ounce Hydro Flask is the personal version: one large coffee or tea, a lid you sip from directly, and a shape that fits a car’s cup holder. Hydro Flask says the bottle is designed for hot drinks and that the Flex Sip lid is leakproof when twisted shut.
The maker claims up to 12 hours hot and 24 hours cold. The only independent numbers we found suggest caution. Outdoor Life tested the larger 40-ounce Wide Mouth, ranked it last among the standard bottles in its hot-water test, and named it best for cold drinks instead. That test used a different size and possibly a different lid, so it is a warning and not a verdict on this bottle.
Where it does well is daily use. The bottle and lid are both dishwasher safe, and the listing shows a lifetime warranty. On materials, Hydro Flask’s FAQ says it does not use lead to seal its bottles and tumblers, and that it moved to an alternative sealing process over a decade ago.
A wide mouth also means it is easy to fill from a pot and easy to get a brush inside, which matters more than people expect with coffee.
Why we like it
- Designed for hot drinks, leakproof when closed
- Fits most cup holders
- Bottle and lid are dishwasher safe
- Lifetime warranty on the listing
- Maker says no lead is used to seal it
Key specifications
| Model | W16BCX464 |
|---|---|
| Capacity | 16 oz |
| Hot claim | Up to 12 hours (listing) |
| Cold claim | Up to 24 hours (listing) |
| Stopper or lid | Flex Sip twist lid |
| Serving cup | No |
| Cleaning | Dishwasher safe, bottle and lid |
| Warranty | Lifetime (listing) |
Why we recommend it
Choose this for the commute or the desk, when you want a single drink kept hot through the morning and you would rather sip than pour. It is the simplest bottle here to live with every day.
Skip it if you need heat past lunchtime. It holds a single serving, and Outdoor Life’s results for the larger Wide Mouth trailed the other standard bottles it tested with hot water.
Pros and cons
Pros
- Cup-holder size
- Sip without pouring
- Dishwasher safe
- Maker states no lead in the seal
Cons
- Weak hot result for the larger size, per Outdoor Life
- Single serving only
- No separate cup for sharing
4. Thermos Icon Series Bottle, 32 oz – A Stated 14 Hours Hot
This is the Thermos we chose for this page, and the choice was deliberate. Because of the 2026 Thermos recall, which we explain below, we left the Stainless King line off the guide. The Icon Series is a separate line, and its model number is not among those CPSC names.
It holds 32 ounces, a good size for one person’s full day. Thermos claims up to 14 hours hot and 24 hours cold, which is the clearest hot figure of any quart-size bottle here. The 18/8 stainless steel body has a screw-top lid with a carry handle, and Thermos adds GRIPTEC grips on the handle and the base so it sits without sliding.
The wide mouth makes it easy to fill and clean. Thermos says the bottle is dishwasher safe but recommends washing it by hand. It comes with no serving cup, so you drink from the bottle or pour into a mug you bring along.
We found no independent heat test of this model, so the 14 hours is the maker’s claim and nothing more. The listing also makes no leak claim and gives no warranty term.
Why we like it
- Maker states 14 hours hot, 24 hours cold
- Non-slip grip on the base and the handle
- Wide mouth for filling and cleaning
- 18/8 stainless steel
- Not one of the models in the 2026 recall notice
Key specifications
| Model | IS2302MS4 |
|---|---|
| Capacity | 32 oz |
| Hot claim | Up to 14 hours (listing) |
| Cold claim | Up to 24 hours (listing) |
| Stopper or lid | Screw-top lid with handle |
| Serving cup | No |
| Cleaning | Dishwasher safe; hand washing recommended |
| Warranty | Not stated |
Why we recommend it
It suits one person who wants a full quart through the workday and a plain hot-hours figure to go on. The handle and grippy base make it an easy bottle to keep on a desk or a truck seat.
Skip it if you want independent proof or a built-in cup. The Stanley Classic has both.
Pros and cons
Pros
- Clear hot and cold claims
- Grip on handle and base
- Wide mouth
- Quart-size for one long day
Cons
- No independent heat test found
- No serving cup
- No leak claim or warranty on the listing
- No lead statement found on the listing
5. Zojirushi SH-HC Stainless Vacuum Carafe, 1 L – For the Table, Not the Trail
A thermos does not have to leave the house. This one-liter Zojirushi is a tabletop carafe, built to sit next to the plates and hold a pot of coffee or hot water through a long breakfast or an afternoon of guests.
Zojirushi calls the construction unbreakable, all stainless steel with a vacuum liner. That is the main reason to choose it over a glass-lined carafe, which can break if you knock it. The mouth is an extra-wide 2-1/2 inches, so you can reach inside to clean it, and a pinch-release stopper makes it easy to remove.
The listing is thin, and we would rather say so than fill the gap. It gives no hot-hours figure, no cold figure, no dishwasher guidance and no warranty term. We also found no independent test of this model. We include it because Zojirushi is a long-established maker and because a carafe does a job the bottles above do badly: pouring cleanly at the table, into a small cup.
It is not a travel bottle. Nothing on the listing says the stopper is leakproof, so keep it upright and at home.
Why we like it
- All stainless steel construction
- 1 L capacity for the table
- Extra-wide 2-1/2 inch mouth for cleaning
- Pinch-release stopper
Key specifications
| Model | SH-HC10AD |
|---|---|
| Capacity | 1 L (33.8 oz) |
| Hot claim | Not stated |
| Cold claim | Not stated |
| Stopper or lid | Pinch-release stopper |
| Serving cup | No |
| Cleaning | Not stated; wide mouth for easy cleaning |
| Warranty | Not stated |
Why we recommend it
It suits anyone who wants coffee to stay hot on the table after the machine shuts off, or who hosts a long Sunday breakfast. A steel carafe also takes a knock that would end a glass one.
Skip it if the bottle needs to travel. It is built for pouring at home, and the listing makes no leak claim.
Pros and cons
Pros
- Steel construction, so no glass liner to break
- Wide mouth for easy cleaning
- Simple pinch-release stopper
- Well-established maker
Cons
- No heat figures on the listing
- No independent test found
- Not a travel bottle
- No lead statement on the listing
6. Klean Kanteen Wide Insulated Bottle, 20 oz – Steel Inside the Cap Too
Most insulated bottles put plastic against your drink at the stopper. This Klean Kanteen does not. The listing says its stainless steel cap creates a 100-percent stainless interior. If your coffee picks up flavors from a plastic lid, that is the reason to look here.
It is also the only pick whose listing itself addresses lead, stating that the bottle is free of BPA, phthalates and lead. The double wall is 18/8 food-grade stainless steel, the 20-ounce size fits most cup holders, and the leakproof Loop Cap clips onto just about anything. Klean Kanteen says its Café Cap and Flip D-Ring Cap also fit, so you can add a sip lid later.
The listing gives no hours for hot or cold, so we have not put a number on it. Outdoor Life tested a different Klean Kanteen, the 32-ounce TKWide, and praised its simple, durable design and metal handle, with readings of 131°F at 3 hours and 103°F at 12 hours. Use that as a sign of how the maker builds rather than as a result for this bottle.
To drink from it you take the cap off, which suits a quick stop better than a drive. The listing does not cover the dishwasher or the warranty.
Why we like it
- Listing says the steel cap makes the interior 100-percent stainless
- Listing says free of BPA, phthalates and lead
- Fits most cup holders
- Works with the Café Cap and Flip D-Ring Cap
- Loop Cap clips to a bag
Key specifications
| Model | K20VWSSL-BS |
|---|---|
| Capacity | 20 oz |
| Hot claim | Not stated |
| Cold claim | Not stated |
| Stopper or lid | Leakproof Loop Cap |
| Serving cup | No |
| Cleaning | Not stated |
| Warranty | Not stated |
Why we recommend it
Choose it if taste is the priority, or if you would rather have steel than plastic touching your coffee. The wide mouth also leaves room for a brush.
Skip it if you want a stated hot time or a lid you can sip from straight away. You would need to buy the Café Cap separately for that.
Pros and cons
Pros
- Stainless interior, including the cap
- Clear statement on lead on the listing
- Cup-holder friendly
- Other caps fit
Cons
- No hot or cold hours stated
- Cap comes off to drink
- Care and warranty not on the listing
7. Stanley Adventure To-Go Vacuum Bottle, 1.1 qt – A Slimmer Stanley
This is Stanley’s streamlined alternative to the Classic, at the 1.1-quart size Outdoor Life tested. The pour-through stopper controls the flow and cuts down on splashes of hot coffee, and the insulated lid doubles as a cup.
The main difference from the Classic is care. Stanley says the Adventure To-Go can go in the dishwasher, while the Classic’s listing does not mention it. The body is BPA-free 18/8 stainless steel, the design is described as leak-resistant rather than leakproof, and the listing states a lifetime warranty on bottles bought from Stanley.
What you give up is a number. The listing says hot, cold or iced for hours and goes no further, and Outdoor Life’s test covered the Classic, not this model. We would not assume the same result. The listing also mentions no handle, so plan to carry it like an ordinary bottle.
The same materials note applies as with the Classic. Stanley’s FAQ says the sealing material at the base includes lead, covered by a stainless steel layer, with no lead on surfaces that touch you or the contents.
Why we like it
- Pour-through stopper controls the flow
- Dishwasher safe, per the listing
- Insulated lid doubles as a cup
- Streamlined shape for carrying
- Lifetime warranty stated for bottles bought from Stanley
Key specifications
| Model | 10-10819-039 (part number) |
|---|---|
| Capacity | 1.1 qt (about 35 oz) |
| Hot claim | Hours, no figure given |
| Cold claim | Hours, no figure given |
| Stopper or lid | Pour-through stopper, leak-resistant |
| Serving cup | Yes, the lid |
| Cleaning | Dishwasher safe |
| Warranty | Lifetime (listing) |
Why we recommend it
It suits someone who likes the Stanley idea but wants a bottle that goes through the dishwasher and slides into a pack. The pour-through stopper also makes for a steadier pour first thing in the morning.
Skip it if you want a tested heat result. For that, the Classic above is the safer buy.
Pros and cons
Pros
- Dishwasher safe
- Controlled pour
- Streamlined and packable
- Lifetime warranty per the listing
Cons
- No stated hot or cold hours
- Leak-resistant, not leakproof
- No handle mentioned on the listing
- Base seal contains lead, covered per Stanley
8. YETI Rambler Bottle with Chug Cap, 26 oz – Tough Bottle for Cold Drinks
Read this one before you buy it for coffee: YETI’s listing says the Chug Cap is not intended for use with hot beverages. With this cap, this is a bottle for water, iced coffee and agua fresca. It is here because a stainless bottle spends half its life cold in a Houston summer, and YETI builds a sturdy one.
Outdoor Life called the 26-ounce Rambler its best do-it-all thermos, citing a sturdy handle and spout. In its hot-water test the bottle read 132°F at 3 hours and 95°F at 12 hours, well behind the Stanley, so it is not the bottle for all-day heat in any case.
The 18/8 stainless steel body is double-wall vacuum insulated with a No Sweat exterior, and it is dishwasher safe. The cap opens with a half twist of the TripleHaul handle, and YETI calls it 100 percent leakproof. Outdoor Life reports a five-year warranty.
On materials, YETI’s manufacturing FAQ says the sealing bead contains lead in its composition but is fully encapsulated and inaccessible, and that lead is not detected when Rambler drinkware is tested, at a limit of detection below 0.002 mg/kg.
Why we like it
- Listing calls the Chug Cap 100 percent leakproof
- Sturdy handle and spout, per Outdoor Life
- No Sweat exterior
- Dishwasher safe
- Five-year warranty, per Outdoor Life
Key specifications
| Model | 21071200018 (part number) |
|---|---|
| Capacity | 26 oz |
| Hot claim | Cap not intended for hot drinks |
| Cold claim | Not stated |
| Stopper or lid | Chug Cap, half-twist opening |
| Serving cup | No |
| Cleaning | Dishwasher safe |
| Warranty | 5 years, per Outdoor Life |
Why we recommend it
Choose this for cold drinks at the job site or in a hot car, where toughness matters more than hours of heat.
Skip it if the bottle is mainly for coffee. The Chug Cap is not meant for hot drinks, so one of the first four picks is the right choice.
Pros and cons
Pros
- Tough handle and spout
- Leakproof claim on the cap
- Dishwasher safe
- No Sweat exterior
Cons
- Chug Cap not for hot drinks
- Fell well behind on heat in Outdoor Life’s test
- Base seal contains lead, encapsulated per YETI
How to choose a stainless steel vacuum bottle
Size it to the pour, not the day
A 16-ounce bottle is one good drink. A quart serves two people, or one person for a full day. Forty ounces is for a group or a long shift. A bottle that is nearly full holds its heat better than a big one with a little coffee in the bottom, so buy the size you will actually fill.
Look at the stopper first
Heat and spills both come back to the stopper. A quarter-turn or pour-through design lets you serve without taking the stopper out, which keeps more heat in. Check that the lid you are buying is meant for hot drinks, since some chug caps are not.
Read hot claims as a ceiling
Makers quote hours under their own conditions and do not always say what temperature counts as hot. Independent results are lower. In Outdoor Life’s test, the Stanley Classic read 121°F at 12 hours and 104°F at 24 hours, which is warm rather than hot. Plan on a good bottle giving you hot coffee for about half of the hours on the label.
Decide whether you want to pour or sip
Bottles with a cup suit sharing, and they stay closed between servings. A sip lid is quicker, but it serves one person and has more parts to clean.
Check how it cleans
Coffee oils build up in the stopper. A wide mouth lets a brush reach the bottom, and a stopper that comes apart is easier to keep fresh. Not every bottle here is dishwasher safe, so check before you buy.
One habit helps any bottle. Fill it with boiling water, cap it for a few minutes, pour that out and then add your coffee. Cold steel takes heat out of the first pour, and preheating lets the kettle pay that cost instead. Homegrounds reported better results with the Stanley Classic after preheating it.
Before you seal it: what not to leave in a thermos
A sealed bottle can build pressure. In April 2026 the U.S. Consumer Product Safety Commission announced a Thermos recall of about 8.2 million products, recall number 26-444. It covers Stainless King SK3000 and SK3020 food jars made before July 2023 and all SK3010 Sportsman bottles. CPSC says the stopper can eject forcefully when opened, causing impact and laceration injuries, and it reports three cases of permanent vision loss. Owners should contact Thermos for a free replacement stopper or, for the SK3010, a replacement bottle.
None of our picks is one of those models. We also left the rest of the Stainless King bottle line off this page. The notice does not name those bottles, but it does not expressly clear them either, and we could not open Thermos’s own recall page while writing this. If you already own a Thermos, read the model number on the bottom and check it against the CPSC notice.
The same hazard appeared in the 2025 recall of Walmart’s Ozark Trail 64-ounce bottle, where CPSC warned about food, carbonated drinks or perishable drinks stored inside over time. The sensible rule for any sealed bottle is to keep it to coffee, tea and water, empty it the same day, and never leave milky drinks, fresh juice or anything carbonated sealed inside. If a bottle has been forgotten in a truck, point the top away from your face and open it slowly.
Coffee with milk, atole or champurrado needs more care than black coffee. The federal food safety guidance is to refrigerate perishable food within 2 hours, or within 1 hour above 90°F. A hot-hours claim on a bottle is not a food safety promise, so if a drink with dairy has gone lukewarm, pour it out.
What the makers say about lead in the seal
Many vacuum bottles are sealed at the base during manufacture, and this is where the lead question comes from. It concerns the sealing material under the base, not the steel you drink from. Here is what we could confirm.
- Stanley: says the sealing material includes lead, that it is covered by a durable stainless steel layer, and that no lead is on any surface touching you or the contents.
- YETI: says the sealing bead contains lead but is fully encapsulated and inaccessible, and that lead is not detected when Rambler drinkware is tested.
- Hydro Flask: says it does not use lead to seal its bottles and tumblers.
- Klean Kanteen: the listing for our pick says it is free of BPA, phthalates and lead.
- Thermos, Contigo and Zojirushi: the listings for our picks say nothing on this, so ask the maker if it matters to you.
How we chose these eight thermoses
We started with vacuum-insulated stainless steel bottles from established makers that are sold and in stock on Amazon. We then read the listings and looked for independent results. The two we relied on are Outdoor Life’s tested thermos roundup, last updated in February 2024, and the Homegrounds review of the Stanley Classic. Where no independent result exists, we say so.
We also checked CPSC recall records for each maker. We have not used these products ourselves. The heat figures come from the named reviewers, and everything else comes from the makers or listings.
Steel thermos questions, answered
How long does a stainless steel thermos really keep coffee hot?
Expect about 12 hours of properly hot coffee from a good bottle. In Outdoor Life’s test, the Stanley Classic read 121°F at 12 hours and 104°F at 24 hours. The Contigo did better in one Homegrounds test.
Is a stainless steel thermos better than a glass-lined one?
For travel, steel is the safer choice because a steel liner cannot shatter if the bottle is dropped. Glass liners are not on this page, so we have not compared heat between the two.
Can you put soup in a stainless steel thermos?
Use a wide food jar for soup instead. CPSC’s 2026 notice is a reminder that perishable food left sealed can be a hazard, so eat it the same day and do not store it inside.
Is it safe to put coffee with milk in a thermos?
For a short time, but treat it as a perishable drink. Federal guidance is to refrigerate perishables within 2 hours, or 1 hour above 90°F. Do not leave it sealed overnight.
How do I clean a thermos that smells like old coffee?
Wash the bottle and stopper the same day with hot soapy water and a bottle brush, and leave them apart to dry. Follow the maker’s care directions, since some bottles are hand wash only.
Do all Thermos products fall under the 2026 recall?
No. CPSC names the SK3000 and SK3020 food jars made before July 2023 and all SK3010 Sportsman bottles. Check the model number on the bottom of yours.
The steel thermos we would hand you
Related guide: Best flask for whiskey.
Related guide: Best stanley thermos.
Start with the Stanley Classic. It has the best record, it is simple, and it does what a thermos should do. Buy the Contigo if you want the longest heat or pour for others, and choose the Hydro Flask if you only need one good cup in the car. For drinks in the cup rather than the bottle, compare our picks for the best coffee go mug and mugs that keep coffee hot, or see our complete tumbler guide. If you would rather leave the coffee to someone else, see the Julia’s menu and call to order.