To test fruit for pectin, mix 1 teaspoon of cooked fruit with 1 tablespoon of rubbing alcohol. If the mixture coagulates into a single clump, there is sufficient pectin. (Do not taste the mixture, since rubbing alcohol is poisonous!) To check fruit for acidity, compare its taste to that of a mixture consisting of 3 […]
chemistry
Making and Using Pectin
Can’t get a hold of commercially made pectin? If you have a good quantity of apples you can make your own. To manufacture your own pectin start with 10 pounds of tart apples (green apples work the best) and a large kettle. Wash them and cut off any rot or insect damage. Remove stems. Quarter […]