Contigo makes great stuff, love mine with the trigger spout so you never forget to close the lid.

Zojirushi. Mine's a half liter (17 oz), you'd probably want the SJ-JS10 which is a liter.

Whatever you get, filling it with hot (boiling, if you can) water for a couple of minutes before you put your actual beverage in will greatly increase the time it keeps stuff hot, by letting the water preheat the thermos.

We use thermos cups at work for liquid nitrogen. We toss the lids and if you fill it there will still be some left in it the next day. Work bought those because it’s cheaper than the science ones and the more expensive ones don’t fit what we do.

I LOVE my yeti. I have never in all my life seen a commuter cup that keeps coffee hot for so long.

but it does have a major, potentially fatal flaw; it does not fully seal. You cannot lay it over, if it’s not upright it will leak. So I have a crappy less well insulated backup for those days and that one isn’t worth a recommendation

Stanley thermos with the cup lid and second stopper lid. Super easy to clean, keeps everything hot until lunch at least, and has a great warranty/customer service department attached to it. I have a 20oz cup by them and love it but it is a little hard to clean the lid

I bought a thermos brand years ago. It keeps things hot. In fact, my daughter doesn’t like to use it because her soup is too hot at lunchtime.

I found an old Stanley from a thrift store. It is a dream.

If you can find d an older one second hand, tgey are still great. No plastic parts, just a rubber seal gasket you want to check.

I have a extra large classic Stanley, my coffee comes out steaming even after an 8 hour shift.

Sho. They've also got a sale on currently which is a bonus!

Been using these for 10+years. It stays piping hot if you prime the thermos with boiling water first. THERMOS Stainless King Vacuum-Insulated Food Jar with Spoon, 16 Ounce, Matte Stainless Steel

Classic Stanley thermos

I use a Stanley 1 liter but I had to buy the spout separately as an accessory.

As a minimalist I’ve been using a super regular 0.5l termo for 6 years and it used to be enough, it did the job. However, I just upgraded by buying a 1.2 termo with a mate system (not stanley) and all I can say is that I enjoy my mate much much more! Without worrying about running out quickly or that the temperature will drop, and what’s very important - no spilling.

So I would say it’s just much more convenient.

I’ve also been looking at the Stanley one but having to buy a different accessory for it is quite annoying.

It's cliché, but the green 1.1 quart (1 liter) Stanley Classic Legendary with the recessed pour-through top.

I have a 700 mL all-in-one arriving in the mail on Monday for tereré.

My husband does use the Thermos brand thermos for coffee and food storage. It’s the old style metal containers with the narrow tops. If for any reason the Thermos is no longer keeping the contents hot or cold as stated, they will replace it. I had one coffee thermos replaced and on a food container they replaced the plastic screw in portion of the lid.

Stanley also has a good warrenty and stands behind their products, Thermos does as well and I’ve been happy with them and will continue to buy them. We also had a TAL canteen (I believe they also sell food containers at Wal Mart) and tried to contact them to buy a new lid since theirs actually broke (Thermos lid never broke, just stopped insulating) and no one would get back to me to even let me buy a replacement lid so was not happy about that.

The only reason we got Thermos instead of Stanley was because Stanley cost almost twice as much.

I don’t think there’s a big difference between all the thermoses. The biggest part is how you use it. Make sure to fill with boiling water, let it sit for a minute, pour out and then add your hot items. This per warms the thermos and helps with thermal loss during the day

Not sure about a food specific thermos

But I know zojirushi is constantly recommended as the top end of heat retention. Almost to a fault where hot coffee is too hot and people state they have to artificially cool it a bit.

I have the Thermos brand one for kids that my child uses (the one with the spoon under a flip portion on the top) - and I sub in the school, so I checked if it was actually warm still. I pack it hot at about 7am and at noon, it's still warm enough to be a bit steamy when opened. Occasionally, it'll get brought home because school lunch was more appealing, and it's still warm at 4pm.

I do have a non-researched theory that the size of the container vs volume of contents will matter - the fuller you have it, the warmer it seems to stay. But seriously, it's just a suspicion I have. So I make sure to purchase the appropriate size for what I'm keeping warm.

It's Miir for me.

https://www.miir.com/products/vacuum-insulated-stainless-steel-food-canister?variant=41674987208778

I fill it with boiling water at 4:30am, heat up my food for lunch while I'm getting ready for work, dump out the hot water and fill the thermos with hot food, close it up, and I can open it up 8-10 hours later at work and the food is still hot. They are a B corp so a great brand. I have been knocking this thermos food canister around to work, camping, travel and it's indestructible. I sometimes use it for cold food as well. It does not retain any flavor or odors.

This doesn’t specifically answer your question, but regardless of brand here’s a little trick for you. Prior to putting your hot food in, pour hot water in and let it sit for a few minutes, then dump it out, dry it, then use normally. This warms up the thermos and keeps your food from immediately cooling off. I do this and feel it helps.

I can't speak for hot food, but my Zojirushi coffee flask keeps my coffee hot better than any other "travel mug" style that I've used.

On days where I don't touch my coffee until the end of my shift, it's still hot. Not piping hot, but drinkable hot.

If you want something that will last that long, you need to avoid moving plastic parts. That means you’re looking for a stainless steel bottle with a basic cap. Ideally the company sells replacement parts for any plastics as well. The other part that might fail is the vacuum, so look for a brand with a long warranty (eg Zojirushi guarantees the vacuum integrity for five years)

Zojirushi

Zojirushi! And second the tip of warming up your thermos before putting the food in! :)

I my experience I’ve not found any good product that really does well keeping water at the temperatures I prefer to brew puerh tea at. Now I just carry a JetBoil and heat up just what I need in the moment.

I use a zojirushi 1 liter thermal carafe which works great. Glass lined, so not terribly outdoor oriented.

Stanley 2L is the best imo.

It retains heat far better if you prewarm it. So boil a liter of water, pour it in, start your next liter, and when it's ready, pour the old liter out. Add a 2nd liter after.

Ive found it to be great, and have even brewed puer overnight in it. It was still hot and ready to go the next morning

Zojirushi

I like my Klean Kanteen, all made of stainless steel, so it is unbreakable. They call them insulated bottles. :-)

I make the tea at home and take it with me in the thermos. Less things to carry and to go wrong.

I had one of these and it broke after a while. Like the outside got hot when it was filled and it didnt keep water hot for very long. I used it for about a year or so, i dont remember ever dropping it, but one time i filled it with very hot boiling water and the cap was sealed on so tight i had to wait until the morning to be able to unscrew it.

Yes yes yes to this HOWEVER I think this model is more common in the UK. I wasn’t able to find it anywhere else. Bought them for my family in argentina and they swear for it after trying Stanley and other popular brands. It’s also so ergonomical!

Because people are stupid that prefer a stanley that gives them status rather than a thermos which is cheaper and better. Its all about marketing

Brand loyalty. Also, in South America, especially Argentina, Stanley products have such high import duties that they are exorbitantly expensive (my $40 Stanley costs over $100 in Argentina) so they have become a status symbol. Indeed, you will find many knockoff items.

I still use an old thermos i bought on a family trip to Argentina around 2012, works just fine.

Yeah it’s Japanese, I own a few various thermoses and personally don’t see why people love the zojirushi so much. Pick a thermos that you don’t mind carrying around everywhere and one that has enough capacity for your needs. I pretty much tired every brand and they are all good. My personal favorite is a 26 or a 36 oz yeti rambler, I put a cup cap at the end to make it easy for pouring. The Stanley brand ones are good as well.

I’ve been using a zojirushi sj js10 for about 4 months. The pour spout is literally perfect for drinking Yerba mate but unfortunately I’ve been having problems with it occasionally leaking.

To me, heat retention is important, and I think Stanley and the original Thermos brand are best at that. For Stanley, you don't have to buy the Mate system, you can buy a regular one and an off-market mate-friendly stopper, there's several designs out there. With Thermos, you can choose between either the Thermo King series, which has a regular screw-in stopper with two slots for pouring and the Light and Compact series, which has a push button that releases the flow. Unlike those push button stoppers with a ring that comes out when you push the button in the center, I never had my Thermos decompress. With those other stoppers, it happens frequently...the ring shoots up without warning while it's closed, often with some spray. And, eventually, the mechanism breaks, it's just a flimsy spring inside that will eventually give out.

Thermos-brand flasks are lighter in weight than Stanleys, but there's no aftermarket stoppers for them, that's the con.

The only thermos that has almost no plastic in the stopper (just two rubber washers, one silicone and one polypropylene) is the Kleen Kanteen one, but I don't like the pouring mechanism for mate. Not all mate drinking vessels require a precision spout, but you should be able to pour with one hand, I think.

My favorite mate thermos is a 0.75 Stanley (contemporary design) with an after-market mate stopper. For terere (summer only) I use a 1 qt Stanley, vintage model, no after-market stoppers available for that one. For traveling, I use a 0.5 Thermos Light and Compact.

😏 The one with "El caballito" https://www.tiendapepino.com.ar/productos/termo-1-litro-chimarrita-termolar/#product-gallery-1

Easy to carry under the left arm, keep water temperature and has the right amount of flitres 😝😝😝

I have two 1.2 L: https://amzn.eu/d/1nzlVs8 1L (better lid for pouring) https://amzn.eu/d/5a7H8Qt

Both are keeping the water at the same temperature for 6-8 h but it stays hot much longer

I’m a Zojirushi Stan so I have to recommend it. My water boiler, rice cooker, and thermos are all Zojirushi. Full disclosure, Some people say since they stopped manufacturing in Japan, the quality has gone down. My products were purchased before the outsourcing.

Zojurushi is almost too good at keeping things too hot, I have to pour my coffee out of it even several hours later if I want it at a reasonable temp to drink, had mine for years and no issues with coating.

It’s the one you want to use most often. 

I love my zojirushi but it’s kinda weird to drink out of, it’s a bit on the small side and things stay way too hot. 

I've used both brands of insulated water bottles, and I found that Thermos is better suited to my needs. The mouth design of the zojirushi brand bottle isn't as good as Thermos'. The zojirushi bottle has a safety lock; you have to slide it to unlock the lid before opening it, and its mechanism uses a spring. After washing it with hot water, the lid warped and the safety lock broke. The Thermos design is simpler; you just snap the lid on, and it doesn't warp even after washing with hot water.

Don't count out Tiger brand. Equal to Zojirushi.

Their thermos are, I thought, all made in Thailand now. I’m not saying there’s anything wrong with that. Quality can come from anywhere. I just know a few people in my life were not aware when purchasing that it’s not 100% Japan so I thought it worth mentioning? I’m sure they still do a fine job.