Lowering the pressure stops the beer reaching packaging over-carbonated. CO₂
solubility roughly doubles between 15 °C and 2 °C, so holding 15 psi through
the crash leaves the beer near 2.9 volumes, above the usual range for any
lager. Backing the valve down to 10 psi gives about 2.5, which suits a
pilsner. carbonation.ts computes both figures and schedules.test.ts
checks this one, so the number and this comment stay in agreement.
The spunding valve setting for the crash, in psi.
Lowering the pressure stops the beer reaching packaging over-carbonated. CO₂ solubility roughly doubles between 15 °C and 2 °C, so holding 15 psi through the crash leaves the beer near 2.9 volumes, above the usual range for any lager. Backing the valve down to 10 psi gives about 2.5, which suits a pilsner.
carbonation.tscomputes both figures andschedules.test.tschecks this one, so the number and this comment stay in agreement.