Top positive review
3 people found this helpful
Very good product. A bit (slightly?) better brand than other brands. Good economical cost (70 cents per pair).
on January 7, 2017
The HotHands are very good. There are several different brands out there but I find HotHands probably the best. While the differences are not too significant, but I can definitely feel that 1) HotHands seem to deliver a bit more heat. I think that is because the packets contain a bit more material. And 2) HotHands seem to last just a bit longer.
The basic principle of "HotHands" or anything similar is oxidative reaction of oxygen (from air) to metal shavings (mostly iron, magnesium, and so on) inside this air-permeable pouch. When reacted, the production of ferrous oxide (aka rust) produces heat. Simple as that. Therefore, the more material, the hotter and longer it will burn--but also depending on how much oxygen penetrates the pouch to support that chemical reaction. Too much or too little are both bad. Anyway, HotHands seem to have gotten it just right.
It is also useful keeping a pack inside your winter glove/mitten, or inside your sock (around the ankles). You might try inside your shoes, although I haven't tried that myself.
Anyway, you should consider this brand (HotHand) and you should consider the most economical package--currently the 10-pack for $7 with Add-On shipping. This brings the final cost down to 70 cents per pair (or 35 cents per pack). Assuming you will use two packs (one for each hand) every time. The packs (each pair) come INDIVIDUALLY wrapped so you can open just one pack and save the other pack for later. For about 8-10 hours of heat (advertised for 10 hours, but I think 8-hour is average) for 35 cents - worth it.
Oh, yes, the heating time is very dependent on how much air you let in. If you keep it inside your pocket the entire time, not a lot of oxygen gets inside so the pack actually lasts a bit longer. If you keep it outside in open air and shake it often, the materials will burn out faster. You get the gist.