The $99 ice chest from Costco claims 7 days and I haven't had a problem with any melting throughout the day. I put about 20 eight pound blocks in one chest. It does take a lot to move when full though!
Shave Ice Tips and Pointers
This section will tell you the basics on how to make a good Hawaiian shave ice! Please feel free to ask questions you may have regarding local shave ice and shave ice in general.