The presentation explains the differences between jelly and jam, highlighting that jelly is made from fruit juice and should be transparent and free from dullness, while jam is made from fruit pulp and is less stiff. Both products require careful preparation, including the addition of citric acid, cooking, and adherence to FPO specifications regarding fruit pulp and acidity levels. The document outlines the specific requirements for proper texture, color, flavor, and storage of both jelly and jam.