Interface EquipmentProfile

Evaporation rate at a rolling boil, litres per hour.

Thermal contraction of wort from boiling to 20 °C, % of the hot volume. 4 % is the conventional figure.

Brewhouse efficiency, %: extract that reaches the fermenter as a fraction of the grist's theoretical maximum. The engine doesn't read it as an input, because it predicts this from the mash efficiency and the volume losses. It's kept on the profile because users record it from batches.

Wort left in the chiller and transfer hoses, litres.

Evaporation from the decoction pot at a rolling boil, litres per hour.

It's separate from boilOffRateLPerHour because the pot is much smaller: 1.5 L/h suits the 8–12 L pot a pull is boiled in, against 3 L/h for a full kettle. This water never reaches the kettle, so the waterfall counts it as a loss and the mash gets thicker by that amount.

Decoction pot capacity, litres. Used only to raise an overflow warning.

Wort retained by dry hops in the fermenter, millilitres per gram. Defaults to the kettle figure when a profile does not distinguish.

Beer left behind on the fermenter's trub/yeast cake, litres.

Fermenter capacity, litres. Used only to raise a headspace warning.

This is the vessel's volume, not the batch's. A 30 L bucket holding a 23 L batch has 7 L of headspace for the krausen. Unlike the two above it doesn't feed any calculation, because nothing downstream of the fermenter depends on headspace. The warning tells the brewer before brew day whether they need a blow-off tube. See recipe-checks.ts.

Water retained by spent grain, litres per kilogram. ~1.0 L/kg for a lauter tun, ~0.8 L/kg for a squeezed BIAB bag.

Wort retained by kettle hops, millilitres per gram. Numerically identical to litres per kilogram. ~6 mL/g for pellets.

Wort left in the kettle below the pickup, litres.

Kettle capacity, litres. Used only to raise a boil-over warning.

Mash efficiency, %: extract recovered into the kettle as a fraction of the grist's theoretical maximum.

How fast a resting mash loses heat, °C per hour.

Only the decoction code reads it, and it's the largest correction a decoction needs. A thick pull is away from the tun for 35–50 minutes, and a mash that drifts 1.5 °C in that time needs a noticeably bigger pull to hit the step. Defaults to 2, for a lidded insulated cooler, which is what decoction is usually done in. A rig that holds mash temperature actively (RIMS, HERMS, an all-in-one) should set this to 0, which gives the standard textbook pull size.

Default mash thickness, litres of water per kilogram of grain.

Volume below the mash tun outlet / false bottom that returns to the kettle (all-in-one systems), litres. Does not change water requirements.

This is "mash tun deadspace" as Brewfather uses it. On a single-vessel rig the liquid under the false bottom never leaves the kettle, so it's still part of the wort. We keep the field so imports and presets carry it over, but no term of the volume waterfall uses it. Wort the brewer actually loses to the tun goes in mashTunLossL.

Mash tun temperature at dough-in, °C. Only used when the thermal mass is non-zero.

Wort left behind in the mash tun, litres.

Brewfather's "Mash Tun Loss", and BeerXML's LAUTER_DEADSPACE. This liquid never reaches the kettle, so the brewer has to measure out that much extra water. The waterfall adds it to the total water requirement and counts it in the total loss.

Mash tun thermal mass expressed as an equivalent litres of water. 0 for a well-preheated or fully-insulated vessel.

Mash tun capacity, litres. Used only to raise an overflow warning.

Display name, e.g. "Anvil Foundry 10.5 gal".

Lautering strategy.

Water added to the fermenter after transfer, litres (partial boils).

Water added to the kettle after lautering, litres (extract brewing).