Section 474 in Rules under the United Provinces Excise Act, 1910
474. Grogging.
- After the cask has been drained as completely as possible, five gallons of water should be placed in it. The bung should then be fixed in and cask well rolled. This should be repeated three times after intervals of an hour or so, the cask on each occasion being in a different position, in order that all the internal surface may come under the action of water. If the original spirit was about 40° O. P., the resulting mixture will be about 80° O. P. This grogged liquor should be pumped in to the store vat (or reduction vat if such is used), and the quantity in terms of London Proof entered in column 17 of register B. W. L. I. Under the orders of the Excise Commissioner the above proceedings may be omitted and instead thereof the bung will be replaced in the empty casks and securely fastened by wire and lead seal.Note. - This rule applies only to cases in which spirit is received in wooden casks. Grogging is not permitted in the case of metal drums.
