Another advantage is that it is practicable to put up food in small as well as large quantities.
Single Period Cold-Pack Equipment
The Homemade Outfit.—A serviceable Single Period Cold-Pack canning outfit may be made of equipment found in almost any household. Any utensil large and deep enough to allow an inch of water above jars, and having a closely fitting cover, may be used for sterilizing. Into this utensil should be placed a wire or wooden rack to hold the jars off the bottom and to permit circulation of water underneath the jars. For lifting glass top jars use two buttonhooks or a similar device. For lifting screw-top jars, suitable lifters may be bought for a small sum.
Containers
For home use glass jars are more satisfactory for canning. Glass jars properly cared for will last for years. All types of jars which seal readily may be used. Jars having glass tops held in place by bails are especially easy to handle while they are hot.
Tops for Economy jars must be purchased new each year.
Small necked bottles can be used for holding fruit juices. Large mouthed bottles can be used for jams, marmalades and jellies.
Tests for Jars and Rubbers
Jars should be tested before they are used. Some of the important tests are here given: