ReadonlyboilGravity the model's gravity term uses, SG.
ReadonlyboilTotal boil length, minutes. First-wort hops are in for all of it.
ReadonlyhopsThe hop schedule. Dry and keg hops are included and contribute zero.
Optional ReadonlyoptionsCalculation options, including the bitterness model. Defaults apply to anything left out.
ReadonlyvolumeWort volume the bitterness is expressed against, litres.
Input to calculateIbu.