The following advice, given to his readers,[92] by the author of a Treatise on Brewing and Distilling, may serve to put the unwary on their guard against some of the frauds practised by mercenary dealers.
"It is a custom among retailing distillers, which I have not taken notice of in this directory, to put one-third or one-fourth part of proof molasses brandy, proportionably, to what rum they dispose of; which cannot be distinguished, but by an extraordinary palate, and does not at all lessen the body or proof of the goods; but makes them about two shillings a gallon cheaper; and must be well mixed and incorporated together in your retailing cask; but you should keep some of the best rum, not adulterated, to please some customers, whose judgment and palate must be humoured."
"When you are to draw a sample of goods to shew a person that has judgment in the proof, do not draw your goods into a phial to be tasted, or make experiment of the strength thereof that way, because the proof will not hold except the goods be exceedingly strong; but draw the pattern of goods rather into a glass from the cock, to run very small, or rather draw off a small quantity into a little pewter pot and pour it into your glass, extending your pot as high above the glasses as you can without wasting it, which makes the goods carry a better head abundantly, than if the same goods were to be put and tried in a phial."
"You must be so prudent as to make a distinction of the persons you have to deal with; what goods you sell to gentlemen for their own use, who require a great deal of attendance, and as much for time of payment, you must take a considerably greater price than of others; what goods you sell to persons where you believe there is a manifest, or at least some hazard of your money, you may safely sell for more than common profit; what goods you sell to the poor, especially medicinally, (as many of your goods are sanative,) be as compassionate as the cases require."
"All brandies, whether French, Spanish, or English; being proof goods, will admit of one point of liquor[93] to each gallon, to be made up and incorporated therewith in your cask, for retail, or selling smaller quantities; and all persons that insist upon having proof goods, which not one in twenty understands, you must supply out of what goods are not so reduced, though at a higher price."
Such is the advice given by Mr. Shannon.
The mode of judging by the taste of spiritous liquors is deceitful. A false strength is given to a weak liquor, by infusing in it acrid vegetable substances, or by adding to it a tincture of grains of paradise and Guinea pepper. These substances impart to weak brandy or rum, an extremely hot and pungent taste.
Brandy and rum is also frequently sophisticated with British molasses, or sugar-spirit, coloured with burnt sugar.
The flavour which characterises French brandy, and which is owing to a small portion of a peculiar essential oil contained in it, is imitated by distilling British molasses-spirit over wine lees;[94] but the spirit, prior to being distilled over wine lees, is previously deprived, in part, of its peculiar disagreeable flavour, by rectification over fresh burnt charcoal and quick-lime. Other brandy-merchants employ a spirit obtained from raisin wine, which is suffered to pass into an incipient ascescency. The spirit thus procured partakes strongly of the flavour which is characteristic to foreign brandy.