| 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. |
| Others, such as cooking apples, raspberries, blackcurrants, redcurrants and gooseberries, have more pectin and set without any help. |
| The tomato fruit cell wall is composed of protein and three major polysaccharide components, pectin, hemicelluloses and cellulose. |
| As the fruit ripens, enzymes convert this into pectin, the quantity of which reaches its maximum just before the fruit is fully ripe. |
| 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. |
