Corn Starch Calculator for Pie Filling
apple pie apple pie apple pie apple pie
Pie filling may contain too much water, resulting in a soggy pie.

Corn starch can solve this problem by turning the excess liquid into firm jelly.

It is important to use the right amount of corn starch: too little will result in a still-soggy pie; and too much will result in an unpleasant, sticky mouth feel.

Measure the amount of liquid that you have, according to the apple pie instructions below.

Then use the table to determine how much corn starch to use.

JuiceJuiceCorn StarchCorn Starch
¼ cup 59 mL ½ tablespoon 4 grams
½ cup 119 mL 1 tablespoon 8 grams
¾ cup 178 mL 1½ tablespoons 11 grams
1 cup 237 mL 2 tablespoons 15 grams
1 ¼ cup 296 mL 2½ tablespoons 18 grams
1 ½ cup 356 mL 3 tablespoons 22 grams
1 ¾ cup 415 mL 3½ tablespoons 25 grams
2 cup 474 mL ¼ cup 29 grams
2 ¼ cup 533 mL 4½ tablespoons 33 grams
2 ½ cup 593 mL 5 tablespoons 37 grams
2 ¾ cup 652 mL 5½ tablespoons 40 grams
3 cup 711 mL 6 tablespoons 44 grams
3 ¼ cup 770 mL 6½ tablespoons 47 grams
3 ½ cup 830 mL 7 tablespoons 51 grams
3 ¾ cup 889 mL 7½ tablespoons 54 grams
4 cup 948 mL ½ cup 58 grams
4 ¼ cup 1007 mL 8½ tablespoons 62 grams
4 ½ cup 1067 mL 9 tablespoons 65 grams
4 ¾ cup 1126 mL 9½ tablespoons 69 grams
5 cup 1185 mL 10 tablespoons 73 grams


How to Measure Juice:

In a large mixing bowl, stir together ¼ cup (44 grams) brown sugar, ½ cup (108 grams) white sugar, and ¼ teaspoon (2 grams) salt.

Skin and slice 5 medium-sized Granny Smith apples (5 ½ cups)(1340 mL)(582 grams) into the mixing bowl.

Stir thoroughly.

Cover and let sit in refrigerator for several hours.

This will allow the sugar to draw out any excess juice from the apples.

Strain the apple juice into a measuring cup to find out how much you have.

For every ¼ cup (59 mL) of juice, add ½ cup (4 grams) of corn starch.

See the table, to help you with your calculations.

Pour the juice and the corn starch into a wide skillet.

Stir the mixture to fully dissolve the corn starch, before putting the heat on high.

Be very careful, as the hot mixture will be dangerous. Do not get it on your skin, clothes or shoes.

Keep stirring vigorously, until the mixture forms a jelly, then immediately remove from heat.

Overheating will create a hard candy that will make an unappealing pie.

Pour the juice jelly back into the sliced apples, and stir thoroughly.

Go to the full apple pie recipe⇗.