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The necessary entries are then made in the Locker's stock book, and in the warehouse-keeper's general register, in the same manner as described in last example.
The last cask containing less than the legal quantity (9 gallons), although in a legal sized package, must be duty paid on completion of the operation, and be immediately sent to the proprietor's dealer's stock, accompanied by a proper permit.— G. O., 6, 1877, and 95, 1877.
It usually happens that the quantity drawn off for the last cask is considerably short of the quantity necessary to fill it. Should the merchant desire to leave it in the warehouse, the quantity short must be drawn from the other casks, which are generally left full until the total quantity is drawn from the vat. Should it take more than can be legally drawn from the other casks-i.e., one gallon from each-the merchant must either get a smaller cask or clear the remnant on completion of the operation, as no cask of British Spirits with a greater vacuity than one gallon if for home consumption, and two gallons if for exportation, can remain in bond after a racking, blending or vatting operation.-G. O., 35, 1873, 6, 1877, and 95, 1877.
When British Spirits are mixed with Rum, Brandy, or other Foreign Spirits, they are to be denominated and described in the account as "Spirits not enumerated, and not sweetened or mixed, so that the strength thereof cannot be ascertained by Syke's hydrometer.-G. O., 61, 1865.
This is an operation whereby the strengths of Spirits are reduced by the addition of water, and is usually done when the Spirits are to be afterwards bottled. (See "Vatting," for the reduction of strong Spirits by the addition of weaker Spirits.)
Foreign Spirits on being reduced with water, are rendered inadmissible for home consumption (G. O., 126, 1847); but British Spirits may be reduced and bottled for home use.— G. O., 42, and 61, 1874.
Spirits in large quantities may be started into a vat, so that the whole may be reduced to a uniform strength; but when only one or two casks are to be reduced, the necessary quantity of Spirits are drawn from each cask to make room for the water that is to be added-the Spirits thus drawn off being filled into a cask of the legal size, and reduced in the same manner as the Spirits in the original packages.
There appears to be no limit to the strength to which Foreign Spirits may be reduced; but British Spirits cannot be reduced to any strength except Proof, 10 U.P., 15 U.P., or 20 U.P., or within six-tenths of one per cent. over or under the said strengths; and in no case can the strength be reduced to less than 20.6 U.P.*
Before reducing with water, the casks are re-gauged and strength tried, and the red slip balanced as in a racking operation. The casks are then started into the vat, or a certain quantity drawn off from each; the water necessary to reduce the Spirits to the strength in merchant's request is then added, and after the whole has been well mixed, a sample from the vat, or one out of each cask, is tested to ascertain the reduced strength and the account balanced shewing the quantity of water added, and the loss in operation, and should the loss exceed one per cent., the excess is to be charged with duty.
The peculiarity of a reducing operation is this, the aggregate of any two quantities of alcohol and water combined is not equal to its arithmetical expression; thus 50 gallons of Spirits at 30 O.P. and 50 gallons of water do not make 100 gallons, but only 98 gallons. When the proportions of water and alcohol are nearly equal the difference is greatest, or about 3.7 per cent., falling to less than 1 per cent., as these proportions vary. The' difference is only shewn in the ullage or liquid quantity, and does not affect the proof, and, therefore, should the loss in operation exceed one per cent. proof, the merchant is not overcharged when called upon to pay he duty in excess.
1.-The quantity of water required for reducing Spirits to a required strength may be found by the following :
Rule.-Multiply the liquid quantity by the difference in strength, and divide by the required strength.
* Sec 23 and 24 Victoria, cap. 114, sec. 100.
Example.-A merchant wishes to reduce 52 gallons of Spirits at 31 O.P. to 7 U.P.; how many gallons of water must he
Liquid quantity 52 x 38 ÷ 93 = 214 =
water required. Proof :
52 gallons @ 31 O.P.
= 68.1 proof.
(The difference of
ON THE HEAD ROD.
Set 38 on line B to 93 on line A, and under 52 on line A will be found 214 on line B.
2. To find the strength to which Spirits have been reduced.
Rule.-Multiply the proof quantity by 100, and divide by the total quantity of Spirits and Water.
A merchant adds 80 gallons of water to 150 gallons of Spirits at 24 O.P.; what will the reduced strength be?
Spirits 150 gallons at 24 O.P. = 186 proof gallons.
Set 230 on line B to 100 on line A, and opposite 186 on line B will be found 80.8 on line A.
What quantity of water will reduce 150 gallons Spirits at 24 O.P., to 19-2 U.P.
80.8 : 43.2 :: 150 : 80 gallons of water required.
A. TABLE SHEWING THE PERCENTAGE OF ALCOHOL IN SPIRITS.
O.P. Per cent. O.P. Per cent. O.P. Per cent. O.P. Per cent.
B.-TABLE SHEWING THE RATE OF CONTRACTION WHEN ALCOHOL
The rate of contraction given in table B applies only to absolute alcohol and water, so that the rate of contraction in the case of Spirits bears the same ratio to that given in the table as the strength of the Spirits operated on does to the strength of alcohol. In Spirits the bulk being greater (in proportion to the strength) the rate of contraction must consequently be less.
The following rules may be found useful:
1.-To find the quantity of alcohol in any quantity of Spirits.
RULE.-Multiply the proof quantity by 100, and divide by 175 (100+ 75 strength of absolute alcohol).
What quantity of alcohol is there in 52 gallons Spirits at 31 O.P. ? Proof quantity 68.1 × 100 6810 175 38% gallons. Answer:-38 gallons of alcohol in 52 gallons Spirits at 31
The quantity of alcohol may also be found by multiplying the proof Spirit by 4 and dividing by 7.
Set 175 on line B to 131 (strength of the Spirit) on line A and opposite 52 (the ullage) on line B will be found 38.9 (quantity of alcohol) on line A.
Set 4 on line B to 7 on line A, and under 68.1 (proof quantity) on line A will be found 38.9 (quantity of alcohol) on line B.
2. To find the percentage of alcohol in Spirits.
RULE.-Multiply the strength of the Spirits by 4, and
divide by 7.
What is the percentage of alcohol in Spirits 31 O.P.?
74.85 per cent.