Heat Pack, Wet Substrate, Six Hours: Winter Shipping Failures
A 40-hour heat pack and a wrung-out gel liner can push a shipping box past 28 C in six hours. Most winter losses blamed on cold are actually heat and condensation.
A 40-hour heat pack and a wrung-out gel liner can push a shipping box past 28 C in six hours. Most winter losses blamed on cold are actually heat and condensation.
