In this excerpt from chapter 4, “Sweet Preserves,” she shares how to make homemade pectin from citrus fruits. You can purchase this book from the MOTHER EARTH NEWS store: Preserving Everything.

The team's results show that as the pH increased to 4.0, 7.0, and 10.0, the molecular weight, degree of esterification, and ...

Some fruits, like apples and citrus, are rife with pectin, so orange marmalade is actually easier to make than you'd think. Pectin is also commercially available in powder or liquid forms at the ...