In damp weather jelly takes longer to form. Try to select a sunny, dry day for jelly making. You can prepare your juice even if it is cloudy, but wait for sunshine before adding the sugar and final boiling.
UTENSILS FOR JELLY MAKING
Large enamelled kettle, syrup gauge, two colanders, wooden masher, wooden spoon, jelly glasses, one-quart measure, two enamelled cups, one baking-pan, two earthen bowls, paraffin wax, enamelled dishpan for sterilizing glasses and two iron jelly stands with cheese-cloth bags.
HOW TO TEST JELLY MADE AT HOME
Much waste of sugar and spoilage of jellies can be avoided by using a simple alcohol test recommended by the Bureau of Chemistry, United States Department of Agriculture. To determine how much sugar should be used with each kind of juice put a spoon of juice in a glass and add to it one spoon of ninety-five per cent grain alcohol, mixed by shaking the glass gently.
Pour slowly from the glass, noting how the pectin—the substance in fruits which makes them jell—is precipitated. If the pectin is precipitated as one lump, a cup of sugar may be used for each cup of juice; if in several lumps the proportion of sugar must be reduced to approximately 3/4 the amount of the juice. If the pectin is not in lumps, the sugar should be one-half or less of the amount of juice.
The housewife will do well before making the test to taste the juice, as fruits having less acid than good tart apples probably will not make good jelly, unless mixed with other fruits which are acid.
TO COVER JELLY GLASSES
There are three common methods of covering jelly tumblers: (1) Dip a piece of paper in alcohol; place it on top of the tumbler as soon as the jelly is cold; put on the tin cover and force it down firmly. (2) Cut a piece of paper large enough to allow it to overlap the top of the tumbler at least one-half inch on all sides; dip the paper in slightly-beaten white of egg; cover the glass as soon as the jelly cools and press down the paper until it adheres firmly. (3) When the jelly has become cold, cover the top with melted paraffin to a thickness of one-third of an inch.
To mark jelly glasses sealed with paraffin, have the labels ready on narrow slips of paper not quite as long as the diameter of the top of a glass, and when the paraffin is partially set, but still soft, lay each label on and press gently.