Are shipping packs the same as those hand warmer heat packs?
I ordered 10 - forty hour heat packs and I though that would be enough. However I couldn't find a cooler that was big enough to hold 22 coffee cups (with bettas) - well I found them but they were like $150
- so I got 2 smaller styrofoam ones. That's 5 per cooler for this trip and now I am not sure I have enough. I am leaving today or tomorrow so I can't order more.
If anything goes wrong on this trip - my bettas will freeze.
Can I use handwarmers in place of the uniheat packs if I run out? My former work has then 24 hours ones.