Remove seeds and cut peppers into small pieces. Add vinegar and sugar, boil for 10 minutes. Strain through cheese cloth. Add red or green food coloring. Bring to a boil and add Certo. Boil for 1 minute, remove from heat and skim. Pour into sterilized containers and cover with paraffin. Peppers can be chopped in blender by adding a little of vinegar. Yield 6 half pint jars.