Clear Jel Is A Modified Cornstarch That Aids In Thickening10Its Tolerance For High Temperatures Makes It Ideal For Canning Fruit Pie Fillings And Making Smooth Gravies And Sauces10Clear Jel Works Well With All Types Of Ingredients Including Acidic Ones And Has A Strong Stability During Freeze And Thaws10Use Clear Jel If You'Re Canning Homemade Pie Fillings, It Doesn'T Begin Thickening Until The Liquid Begins To Cool10Use As Thickener. Use 1/4 Cup Of Clear Jel For Every 1 Quart Of Liquid10