If you stroll into a 7-11 you might spy a Fizzics Sparkling Cold Brew Coffee. There are plenty of local (and not local) cold brew to choose from but this brand is packaged in self-chilling cans.
This chiller is the brainchild of The Joseph Company International. “The 8.4-ounce cans are “activated” when the customer turns a knob at the bottom of the can, releasing CO2 that cools the coffee inside in about 90 seconds.”
Will this ever work for beer? It will add weight which will add to shipping costs. The tech will cost more as well. But could it be used for those accounts that don’t cooler store beers and you have a special release? Maybe but I think that a cold delivery chain would be a wiser investment.