Jellies & Jams Selecting Fruits To make a perfect jelly, pectin, acid, sugar and water must be present in the right proportions. Fruits vary in the amounts of acid and pectin they contain. Some of the fruit should be slightly under-ripe to furnish pectin and acid. In over-ripe fruit the pectin changes and loses its jellying properties. If fruit is low in pectin or acid combine with fruit rich in pectin or acid or use a commercial pectin. CHART OF ACID AND PECTIN CONTENT IN FRUIT Rich in Deficient Deficient Will | igtly if ly cid & in in slight Fruit Pectin Acid Pectin under-ripe Sour Apples x Crabapples x Currants x Sour Goose- erries x Sour Plums x Grapes x Cranberries x Blueberries Sweet Apples Quince Blackberries Rhubarb Strawberries Pineapple Peaches Cantaloupe Melon Blueberries Blackberries Raspberries Sour Cherries Sweet Plums Loganberries x «x K x x x xX KX x KKK KK XK Pectin Tests 1. To 1 tsp. cold fruit juice add 1 tsp. ordinary alcohol. If solid mass forms the fruit is rich in pectin. DO NOT TASTE THIS MIXTURE. 15