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I have 31 year old Stanley Thermos. One dented up green one and a full just stainless no paint. Once they lose the vacuum due to shock, dents etc. they are will no longer hold the heat properly. If you drill a little hole on the top (1/16'') and a 3/8'' hole on the bottom opposite the top hole, (top hole on the left and bottom hole on the right).Get a can of foam insulation, fill from the bottom hole until it comes out continuous on top. Then when you use hot kitchen faucet water and preheat it before pouring in the coffee or whatever liquid, it will hold the heat for at least 3 days. Mine do in very cold conditions.Oh, use some silicone or Dap shower chalk to seal the holes after the insulation sets to prevent water or moisture from getting in there. It's a cheaper fix and less frustrating than buying a Thermos every few years. I did this with an old plastic thermos also but must have fill it too much because it split on the seam after a few uses. Uses= drops and rattling around in a bucket.Good luck
Nissan, made in Japan. have from one pint to 1/2 gallon sizes. preheat with boiling water, add coffee or whatever. will last, hot for 8-12 hours. Cabala's brand stainless used to be made by nissan in japan. don't know about the new stuff. bought my 1/2 gallon size one at a local flea market for $3.00. my 2 cents.
Dunno which one is best, but I know it isnt the one I own....
I use a Stanley. The one I have now has been bounced around in truck cabs and construction sites for over ten years. They are super durable and will keep coffee hot all day. Beware of knock offs and "improved" models. They are not nearly as good! Accept nothing but the old fashioned, puke green, Stanley vacuum bottle.http://www.shopstanley-pmi.com/product/7190
I think the trick for the stainless is to preheat it with boiling water
Once you open them and pour out the first couple cups of coffee they cool off a lot faster.