Can I increase the fruit content of my jam? Do I have to adjust the amount of Certo used?
The main problem with increasing the fruit content in a jam is that fruit contains a great deal of water. Increasing the fruit content means that more boiling will be required, which will impair the colour of the jam, and in many cases the flavour also. For this reason, we do not recommend that you change the Certo recipe by adding more fruit.
