Is Shipping Beers in the Summer Safe?

Every homebrewer who ships beer has worried about it: what actually happens to those bottles baking in a delivery truck in July? This experiment answers it with data. Four beers — a stout, a dark lager, an Irish red, and a Mexican lager — get shipped to Billy at GamnDood Brewing in 92°F weather, with a temperature and humidity sensor sealed in the box logging conditions once a minute.

Then comes the science: triangle tests comparing the "cooked" shipped beers against control beers, to see if anyone can reliably taste the difference. Whether the tasters could actually pick the odd beer out — and what that means for anyone who ships homebrew in the summer — is the whole point of watching.