In accordance with the agreement reached between St Austell Brewery Company Limited and 
H.M. Revenue & Customs in relation to non-drinkable sediment in cask-conditioned beer by reference
to which duty has been paid is shown below:

18's (Kilderkins)
Normal Volume: 81.83 litres
Sediment: 3.4 litres
Duty Paid Vol: 78.43 litres

9's (Firkins)
Normal Volume: 40.91 litres
Sediment: 1.7 litres
Duty Paid Vol: 39.21 litres

4.5's (Pins)
Normal Volume: 20.46 litres
Sediment: 0.85 litres
Duty Paid Vol: 19.61 litres