MethodHowResult
Cold brewCoarse grounds steep in cold water 12–18h, strainSmooth, low-acid, keeps for days
Flash brewHot pour-over brewed straight onto iceBright and aromatic, ready in minutes
StrengthBrew stronger, or use coffee ice cubesMelting ice won't water it down
AvoidSlowly cooling hot coffee over a few cubesStale, watery and dull