Reviews of Thermos Nissan 48-Ounce Wide Mouth Stainless-Steel Bottle

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This thermos did its job though I was somewhat annoyed because it could have easily been better. This review is based on one month of direct experience. I will discuss why I bought it, the good points then the bad.

I wanted to escape the increasing price at my workplace cafeteria, have more control over what I eat, avoid Chinese-made products if possible and set a good example caring for the environment. I wanted to take food (not coffee) so I needed a wide mouth that could accommodate a spoon. I wanted a large capacity because I'm a big eater and also envisioned bringing hot/cold drink treats for the whole family when we go hiking. Excellent insulation was an important criterion, just in case I needed it.

There were scant reviews on this particular product but the reviews for the Thermos brand were generally better than the Stanley brand. Many reviews of Stanley thermos mentioned how incredible they used to be but indicated prevailing reliability problem since "Made in China" appeared on their products. I considered other products that had higher insulation ratings, but there were none with better insulation rating and was a large capacity wide-mouth.

This Singapore-made Thermos appeared well made. The weld was quite clean and smooth compared to the welds in the Stanley brand. The plastic appeared to be of excellent quality.

The top was closed by a stopper with a pouring spout. A plastic bowl covers it loosely. Then the outer plastic/metal screw-top holds the bowl in place. None of the lids require heavy tightening to close. The stopper is very air tight and capable of containing surprising high pressure. Once, the pressure was so high that when I opened it, the puff of escaping air dislodged the silicone rubber o-ring. (The o-ring was easily to re-install.)

Because the stopper did not require heavy tightening, I was afraid the seal was not good and may spill the contents. This has not happened and I don't think it will.

When I put in boiling hot soup, the soup is plenty hot 6 hours later, with or without preheating the thermos. I took hot pasta once, and it was just warm after 6 hours (without preheating). (Soup has higher heat content, so it took more heat loss to lower the temperature. And the more food you put in the thermos, the slower the temperature will drop.) The claimed 12-hour rating clearly did not apply to pasta in the thermos.

The most severe test for the insulation was when I put boiling hot soup in at 9:30 pm. At 7am, it was plenty hot when I took a third out for breakfast. At 3pm, when I had the rest for lunch, the soup was hot enough to enjoy but no hotter. Based on this single experience, I would that the 12-hour heat rating was valid for soup in the thermos.

Now, the things I did not like.

Although the walls were very well insulated, the top was not. The stopper had no insulation. I would have like to see a layer of vacuum in the stopper. Instead, the stopper had a nice pouring spout, which I never use because it doesn't work for soup. When closed, I noticed that the top of the thermos was surprisingly warm to the touch, indicating that virtually all heat loss came through the top. I would have happily paid more for a better insulated stopper, so I my pasta would stay hot longer than 6 hours.

There are 2 little holes in the bottom (perhaps for screws attaching the plastic base to the steel body). These holes took in water (probably when I washed the thermos) and leaked it a messy puddle on my desk the next day. If the holes were wider and shallower, this would not have happened.

Thermos suggested using the outer lid as a bowl. The problem with this that this lid is not tight fitting, so residual food in the bowl could leak out.

Some may point out that I would get better performance if I preheated the thermos with hot water. I find doing that to be annoying. Using up the energy to heat water when you don't really intend to use it seems wrong to me. It's also a bad way to deal with our severe water shortage. Most of all, I want to set a good example for my kids.

I think this product is very good overall and am very happy with it. I would have paid more for an insulating stopper. In the month I've had it, it has almost paid for itself, I think.

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It is easy to fill, large and keeps food very hot for a long time. Very practical. The inner lid is hard to clean, but that is more than made up for by the functionality.

UPDATE: There is a rubber cover over the spout that keeps it from leaking. Unless you take this off and clean it and doing this is a pain then soup can get in and ... Well when I cleaned mine it had a ring of black stuff. Too bad, because if this just had a SIMPLE lid it would be great. Cleaning the inner lid is tedious that I'm not sure if I will use it anymore. Coffee, tea probably food no.

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I got this thermos a few weeks ago because I am a serious coffee addict. This behemoth will hold an entire 12-cup pot of coffee and I usually half-fill it every morning. Not only does it keep your coffee hot for 12+ hours, it's sleek and easy to tote around. The main cylinder is easy to clean too, your hand will fit in it so you can get at it with a sponge.

My only complaints are it is hard to clean the suction-cap, it's made of rubber/plastic and you can't put it in the dishwasher. It has little nooks and crannies that are hard to get to. Also if you pour it into a cup on a flat surface, your liquid will splatter around a lot. The solution to this is to pour it while holding your cup/mug at an angle.

Overall I am very satisfied, as the issues I have are super easy to work around! I used to carry my coffee in a Nalgene and this is a huge improvement over that :)

Honest reviews on Thermos Nissan 48-Ounce Wide Mouth Stainless-Steel Bottle

holds alot of coffee and keeps it hot all day long. but it will leak when you place it on its side, like on the car seat.

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I have been using Nissan bottles for over twenty years. My original one (dating before Thermos) was used daily for 15 years, occasionally since, and is still fine. Dented and scratched, but no drop in performance.

I got this model as a replacement to have a wide-mouth, but it loses its vacuum very easily. When that happens, it no longer insulates; the outside gets very hot or very cold depending on the contents.

My first one of these went five years or so, the current one less than two. THey are now made in Malaysia according to the sticker on the bottom. So bottom line, the old Japanese Nissan ones were indestructible, the Thermos ones are cheapened and getting worse.

Do not buy this if you need it for daily use, it simply will not hold up.