Prepare home canning jars and lids according to manufacturer's instructions.

Combine citrus peel, water, and baking soda in a saucepan. Bring to a boil; reduce heat; simmer, covered, 20 minutes. Add chopped fruit to peels and return to a boil.

Reduce heat and simmer, covered, 10 minutes.

Measure 5 cups of prepared fruit and pectin in a large saucepot. Bring to a rolling boil; boil hard 1 minute, stirring constantly.

Remove from heat. Skim foam and stir, alternately, 5 minutes. Pour hot marmalade into hot jars, leaving 1/4-inch headspace.

Process 10 minutes in a boiling water bath canner. Adjust caps.

Ball Consumer Newsline Newsletter Consumer Affairs Ball Corporation Po Box 2729 Muncie, In 47307-0729