Canning method
Sterilize canning jars . Measure juice into a large pot (about 8- to 10- quart size). Mix pectin thoroughly with juice and bring quickly to a hard, rolling boil, stirring occasionally. Add all the sugar at one time.
Stir until sugar dissolves, and bring again to a full rolling boil (a boil that rises to the top and cannot be stirred down). Boil hard for 1 minute and 15 seconds, stirring constantly. Remove from heat; skim off foam with a metal spoon.
Pour at once into hot, sterilized jelly jars, leaving 1/4-inch headspace. Wipe rims of jars with a dampened clean paper towel; adjust two-piece metal canning lids. Process in a Boiling Water Canner .
Processing: Process Hot, Half-pints or Pints, boiling-water canner, 0 - 1,000 ft - 5 minutes.
Altitude-adjusted processing table: Table 1. Recommended process time for Mayhaw Jelly in a boiling water canner. / Process Time at Elevations of / Style of Pack - Jar Size - 0 - 1,000 ft - 1,001 - 6,000 ft - Above 6,000 ft / Hot - Half-pints / / or Pints - 5 min - 10 - 15