As the fruit ripens, enzymes convert this into pectin, the quantity of which reaches its maximum just before the fruit is fully ripe. |
Imagine you are making jam and have gotten to the point where you pour the steaming liquor of fruit, sugar, and pectin into the jars. |
Some fruit, such as strawberries, brambles and cherries, have low pectin levels and so extra must be added to ensure a good set. |
The pectin didn't blend well into the liquid, so to get rid of any lumps, I used a hand blender. |
While the fruit is softening, boil up the pips to extract their pectin, and strain their juice into the pan while still hot. |
The standard method, which does not require added pectin, works best with fruits naturally high in pectin. |