Probably already answered on a thread but I couldn't find it, what is the best way to ship a growler?
no different than a 750ml first get correct box size to fit growler,bubble wrap the growler ,use plenty of packing peanuts,leave very little wiggle room tape and seal your box,put correct label and send it
I always do box inside of box for growlers, always make sure they are tight sealed, some use plumbers tape to seal cap, additionally, lots of bubble wrap, put a plastic bag around so it doesn't leak out of box if breaks, don't put other bottles against it.