10 Best Thermos Flasks for Long Lasting Hot Drinks – Expert Picks

“I like this thermos overall, and it seems well-made. However, I expected it to keep my coffee hot for more hours. In my experience, it keeps the coffee warm for about 5–6 hours, but not really hot beyond that. The lid is metal on both the inside and outside, and even though it is not very large, it can still be used as a small cup for drinking. Overall, it’s a nice thermos, just not as long-lasting for heat as I hoped.”

“Since I got this thermal bottle, I haven’t had a single cold coffee. I use it especially for long trips, as I like to have my coffee with me to stay awake and alert on the road. It keeps coffee hot for a long time, just what I needed. Plus, it’s easy to clean, made of a durable, stain-resistant material, and doesn’t take up much space, making it very practical to take anywhere.”

“This Insulated termal is GREAT! We tested it with boiling and cold water. Giving each 24 hrs to see how the water temp holds. See pictures. Boiling water temp started at 203f and 24hrs later was at 150f, it was still steaming when I opened it and pretty hot. The cold water temp started at 57f and 24hrs later went up to 62f. The Termo has a cup to pour separate from cap that seals it. The handles is moves making it comfortable to travel and you can snap it close so it’s not bulky. This is definitely worth it if you dont want to spend the money on a Yeti or Stanley!”

“Thermo arrived on time and product looks great, made of a very sturdy material perfect for outdoor/indoor use. Really like the design, the little cup for Mate is very functional and perfect in size. Love the fact that van keep hot water for 12hrs and Cold water for 24, I don’t think no other Thermo out there can do that. Really happy with this purchase and certainly recommended.”

“This thing is amazing. I have purchased many Stanley thermos in my lifetime and never disappointed but this thing exceeded expectations. I can fill this up at 10pm with hot water and the water stays hot until 10pm the next evening. I honestly can’t believe these don’t sell for more. I couldn’t be happier with this purchase, worth every penny.”

“Pretty good product, I don’t really have any complaints or anything to say that requires a descriptive and detailed review. It works and comes as advertised! This Thermos can actually maintain the temperature of what’s put into there for a pretty long time (about over half a day). Only thing I noticed immediately was that it doesn’t retain hot temperatures as well as cold ones unless the metal cup-top is screwed on. Overall, I’ve been getting a pretty good use out of it, it’s good for a portable tea cup that keeps your things hot and the cup ontop is very convenient, especially when travelling.”

“If it were possible, I would give this a ten. For years, I had a Stanley thermos. True, for the first ten years or so, the Stanley kept the water hot for hours. Then, all of a sudden, it quit. The water wouldn’t stay hot for even six hours. I was frustrated! I ordered the 68-oz. THERMOS Beverage Bottle. This is a miracle product. The opening is larger, making it a breeze to fill with hot water. The lid has a directional arrow on it to tell where to open the lid for pouring out the water. This arrow is raised so you can feel it in low-light conditions. And hot? This bottle will keep water steaming all day. I think the water would be acceptably hot for almost 24 hours! I totally love, LOVE, LOVE this product.”

“Nice, big, thermos! Kept a pot of coffee warm for 12 hours the other day! Nice. The pour system is simple- turn the cap until there’s enough room for coffee to come out- no moving parts but the cap itself. Only trouble I’ve had so far, is the coffee cup cap tends to mis-thread a bit. Hard to take off with gloves on.”

“This thing is amazing. I have purchased many Stanley thermos in my lifetime and never disappointed but this thing exceeded expectations. I can fill this up at 10pm with hot water and the water stays hot until 10pm the next evening. I honestly can’t believe these don’t sell for more. I couldn’t be happier with this purchase, worth every penny.”

“Pretty good product, I don’t really have any complaints or anything to say that requires a descriptive and detailed review. It works and comes as advertised! This Thermos can actually maintain the temperature of what’s put into there for a pretty long time (about over half a day). Only thing I noticed immediately was that it doesn’t retain hot temperatures as well as cold ones unless the metal cup-top is screwed on. Overall, I’ve been getting a pretty good use out of it, it’s good for a portable tea cup that keeps your things hot and the cup ontop is very convenient, especially when travelling.”

“I’m absolutely blown away by the performance of this Milton Thermosteel bottle! I’ve tried countless thermoses over the years, and this one blows them all out of the water. The biggest thing for me is the outstanding heat retention. I’m a big coffee drinker and I love to take it with me on the go. Recently, I took this bottle on a long road trip. I filled it with piping hot coffee at 6 AM, and by 2 PM, it was STILL steaming and incredibly hot! I was amazed. No more lukewarm, disappointing coffee hours into my trip. This bottle kept my coffee at the perfect temperature for a ridiculously long time.”

“This product is very good. It keeps water hot all day. I bought it to make formula for my son, and it works great. It’s easy to use, and I don’t need to heat the water again.”

“I bought this thermos to replace one I had for many years and many road trips. It holds about two good size cups of coffee. It keeps coffee hot overnight and is very easy to clean.”

“We had one for 15 years. It was still functional but was dented and beat up. We decided to replace our old one. This one is nearly identical with very minor changes. The push button valve color was changed. It’s the perfect size and will fit a cup holder. We take it everywhere we go. The cup is slightly small but I like it that way.”

“I’m 80 y/o. This is, by far, the best thermos I’ve ever owned… EVER. The imbedded thermometer advises the temperature of the contents and the firmness and quality of its gaskets assures dry storage. Pricey? Yes. Worth it? Just bought another for my wife.”

“The seller kindly provided a replacement bottle. While it still has a very slight leak, it is much improved compared to the original and does not leak as much when fully closed. I appreciate the seller’s responsiveness and effort to resolve the issue, so I’m updating my review accordingly.”

“1. It holds so much coffee. I bought for my husband to take to work in the winter when he does snow removal. Does great at keeping it hot. 2. We love the stainless steel cup. That was important in choosing the brand. The hot coffee doesn’t touch plastic. The cap is silicone lined. And it is all super easy to clean. 3. The flask fits in the car cup holder. It stays sealed, no spills. 4. It’s durable! He’s already dropped it. Bound to happen, but for falling off an SUV car hood to cold asphalt, a scratch less than the size of a dime isn’t bad.”

“After reading negative reviews about how poorly this Hydro Flask retains heat, I decided to see how long mine could maintain a hot temperature. I was pleasantly surprised to see that boiling water was still burning hot to my fingers after 42 hours, far exceeding the promised 30 hours. After throwing in several ice cubes with room temperature water, the water was still icy cold more than 48 hours later.”

“I use this to take my tea to the office on the days i go in and it is very handy. The size is just right it keeps my tea hot for quite a few hours.”

“I like this bottle and I bought the product specifically for hot coffee during my outings during winter. The cap serves also as a value to dispense the content, push to open or close.”