Strawberries

‘It has been pointed out that pectin occurs in the cell-walls of the fruit, and that the fruit has to be broken down to a certain extent before the pectin can be brought into solution. The most popular strawberry jam, however, is that in which the berries remain whole. In this case, therefore, it is necessary to add pectin in sufficient quantity to give the desired set. Strawberries are also low in acid, and it is necessary to increase the acidity. This deficiency in pectin and acid can be