After the members meeting last night, the M-team (Marek, Marty, Matt S., and Matt M.) brewed our first batch of Open Mate soda. Inspired by the Club Mate that Marty had ordered, but put off by its closed-source nature (hey, we are a hackerspace here!), we realized that we should brew our own. After acquiring some yerba mate tea, caffeine powder, sugar, and kegging equipment, the first batch is brewed! Check out the photos of each step, and be sure to stop by this Friday to taste the results!
3 gallons water
85g Chai mate tea (from Teavana)
2.5 cups ‘raw’ cane sugar
1.5g caffeine powder (handle with care!)
CO2 (to taste)
Sterilize all equipment. Bring water to just under a boil, add tea and sugar, steep for 5-7 minutes. Cool, add caffeine powder, stir well, then transfer to keg. Float 15psi of CO2 over the mixture, then release the pressure valve and re-pressurize. Repeat 5 times (to purge oxygen from the keg. Let sit for 24 hours, to allow the soda to carbonate, then drop pressure to 7psi and enjoy!