* [[Hacker Fuel]] - Experiments using vacuum flask filtering on cold brewed coffee to produce less bitter beverages with high caffeine content. Future research may include caffeine extraction to quantify the caffeine per mL. | * [[Hacker Fuel]] - Experiments using vacuum flask filtering on cold brewed coffee to produce less bitter beverages with high caffeine content. Future research may include caffeine extraction to quantify the caffeine per mL. |