Use fresh, juicy berries such as blackberries, boysenberries, loganberries and
Place berries in a large pot. Crush; and heat until berries are soft and render
their juice. Strain through jelly bag or a colander lined with four layers of cheesecloth
into a large bowl. For a greater yield of juice, twist ends of bag or cheesecloth
until most of the juice is extracted. See Note. Measure and return juice to large
pot; add 1 to 2 cups sugar to each gallon of juice (or to taste). Reheat to dissolve
Pour quickly into clean, hot jars, leaving 1/2-inch headspace; seal. Process
pints or quarts in boiling water bath for 15 minutes.
If you want a clearer juice, before adding sugar let juice stand for 24
hours in refrigerator. Carefully ladle juice into pot without disturbing the sediment;
add sugar, then proceed with recipe.