Draft — architecture demonstration. Not yet reviewed as Handbook knowledge.
Service note
Consistency across a team
Foam quality is a training problem before it is an ingredient problem. A shared, written standard is what makes the tenth sour of the night resemble the first.
The situation
Several bartenders build the same sour across a shift and the cap varies visibly from one drink to the next.
Revised 2026-08-17
The standard
- One written build per drink, dose included, visible at the station.
- One agreed shake — described in duration and intent, not left to feel.
- Glass chilling treated as part of the build, not a courtesy.
Pre-shift checklist
- 01Dosing measure present at every station.
- 02Ice well refreshed on a set interval.
- 03Chilled glassware stocked before doors.
Training note
Run a two-drink comparison at pre-shift rather than describing the difference. A team that has seen the failure once rarely needs the explanation twice.
About this Handbook
The Foam Handbook is published by FOAMY WHITES, who make a pasteurised liquid egg white for bars. We write about foam the way we would explain it across the bar — including where our product is not the answer.