Is Potato Starch the Same As Corn Starch?

Potato starch and corn starch seem similar, so you may wonder if you can use them exactly the same way. While both are starches, potato starch can be used in instances where corn starch will not work.

Function

Potato starch is a substitute for corn starch or flour for thickening in a recipe. It has a higher heat point than cornstarch. If you need to cook at high temperatures, potato starch will work better.

Gluten Free

Since potato starch is gluten free, people who are gluten intolerant can still have use a thickener in their chowder, soup or gravy.

Appearance

While flour and possibly corn starch will discolor soup, potato starch does not. This is more important in clear soups versus chowders or cream soups.

Use

Potato starch can be used in any recipe that calls for flour or corn starch. Mix with a small amount of water before adding so it will not create lumps.

Kosher

This thickener can be used in recipes prepared for Passover. It is often stocked with other kosher products.

Strength

Potato starch and flour thicken about the same, but corn starch is twice as strong. If you cook often, you will probably want to have both thickeners in your kitchen.

References

• Argo Starch
• Food Substitutes
• Recipe Tips