Shipping eggs with Heat Packs

[BaileyJean]

I have shipped eggs spring-fall with a good hatch rate. I wrap the eggs individually in bubble wrap, and pad the box with shredded newspaper.
I have seen some people offer heat packs for eggs being shipped this time of the year. What type of heat packs are these? The only think I've come across are the hand warmers. Im also concerned about the heat packs being too hot and starting the eggs. Does anyone have any experience with this?

 

[JetCat]

i use the UniHeat packs, they only get to 100° if your hand warmers aren't any hotter they'll be fine too, but you always tape them to the box on the inside then use your shredded paper as insulation between the heat pack and the eggs.