Originally Posted By billstephenson
Even a beer flavor concentrate could save a lot of weight. I don't know how you'd carbonate it, maybe one of those BB gun CO2 cartridges and a special keg like cup.


They've already done this with Pat's Backcountry Brew (https://www.patsbcb.com). Not light, but lighter than carrying a six pack with you. Haven't tried it (I'm not a beer drinker), but it seems interesting, especially in colder weather when you can get ice cold water.