I'm a local purchase only on the vials unless you have no ability to purchase local. If I was ordering in the mail, and wanted to make top quality beer, I would request cold packs and 2 day shipping. If 80F in the ambient temp, you can count on whatever vehicle they're being driven in to be way hotter than that. I've yet to see a UPS truck with an AC. The back of those trucks is sweltering hot. Easily over 120F on a hot day.