Rougier Citric Acid
For the preparation of acidulous drinks and effervescing drinks and preservation of jams and jellies.
Directions for use: to prepare a lemonade beverage dissolve 1 teaspoonful (3 grams) of citric acid in 1 liter of water and add either lemons or essence of lemons. Adjust and sweeten to taste. Also may be used for strengthening the acidity of lemons in making lemon pies and preservation of jams and jellies.