According to ButcherBox's website, it's recommended not to leave your box outside for more than 6-8 hours after delivery. But from my personal experience, I've received about 20 boxes over the past few years, and every time the box has arrived cold, the meat has been frozen solid, thanks to the dry ice packing. Even on hot days, when I couldn't bring the box inside right away, I've never had any issues with the meat thawing out. However, some people have had problems with thawing if they live in warmer climates. So if you're in a hot area, it's a good idea to have a plan for when your box arrives. Although you should aim to put the meat in the freezer immediately, don't worry too much if you can't get to it immediately. ButcherBox provides tracking information, so you can plan accordingly for when your delivery will arrive.