The longer the contact time the more caffeine is extracted. E.g. 12hr cold brew > 3 min filter > 30 sec espresso
@hangedup started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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The longer the contact time the more caffeine is extracted.
E.g. 12hr cold brew > 3 min filter > 30 sec espresso