This section is from the "Henley's Twentieth Century Formulas Recipes Processes" encyclopedia, by Norman W. Henley and others.
Cochineal syrup, prepared as follows:
Cochineal in coarse powder.......... 6 parts
Potassium carbonate.............. 3 parts
Distilled water..... 15 parts
Alcohol, 95 per cent............ 12 parts
Simple syrup to make 500 parts. Rub the cochineal and potassium together, adding the water and alcohol little by little, under constant trituration. Let stand overnight, add the syrup, and filter.
Carmine, in fine powder.......... 1 part
Stronger ammonia water........... 4 parts
Distilled water to make 24 parts.
Rub up the carmine and ammonia and to the solution add the water, little by little, under constant trituration. If in standing this shows a tendency to separate, a drop or two of ammonia will correct the trouble.
Besides these there is caramel, which, of course, you know.
Carmine........... 1 part
Liquor potassę. ... 6 parts
Distilled water..... 40 parts
Mix. If the color is too high, dilute with distilled water until the requisite color is obtained.
 
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