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Take one teaspoon of clear boiling fruit juice and drop into a cold glass or cup, allow it to cool for a minute and then add three teaspoons of methylated spirit and swirl it around or gently shake. If there is only a medium amount of pectin, several small clots will form.
Similarly one may ask, how do you check for doneness in a jam?
Pop a plate in the freezer at the beginning of your cooking time. Once you think that your jam has reached its setting point or has thickened, spoon a bit of the jam on the cold plate and tilt it vertically so the jam runs. You are aiming for a slow descent, not a runny mess. If it runs slow, it's set!
- The easiest way to test your jam is by using a sugar thermometer, bring the jam to 105C.
- For an alternate method, put your plate in the freezer for about fifteen minutes before taking it out to test a spoonful of hot jam.
Just so, how much pectin do you put in jam?
1 tbsp of pectin powder gels 4 cups of fruit. Use 2 tbsp. per 8 cups of fruit. The standard jam recipe is 8 cups of fruit, 6 to 8 cups of sugar, 1/4 cup lemon juice.
Low Methoxyl Pectin (e440i) is extracted from the peels of citrus fruit. Pectin consists of a complex set of polysaccharides that are present in most primary cell walls of plants. Pectin can also be used to stabilize acidic protein drinks, such as drinking yogurt, and as a fat substitute in baked goods.