If you mean to test for starch then Iodine
One way to test if a powder is talc or cornstarch is by performing a iodine test. Mix the powder with iodine solution; if the mixture turns blue-black, it is likely cornstarch. Another way is to do a simple solubility test: dissolve the powder in water and if it is talc, it will not dissolve and settle to the bottom, while cornstarch will dissolve.
For thickening soups, stews, and gravies, you can use flour instead of cornstarch.
You can use flour or tapioca starch as substitutes for cornstarch in pie filling.
Yes, you can substitute arrowroot for cornstarch in this recipe.
Cream is not a good replacement for cornstarch. Instead use 2 tablespoons of flour for 1 tablespoon of cornstarch. Or you could use 4 teaspoons of quick cooking tapioca for 1 tablespoon of cornstarch.
If your recipe calls for cornstarch but you do not have any on hand, you can easily use flour. If the recipe calls for 1 tbsp. of cornstarch, use 2 tbsp. of all-purpose flour.
no because cornstarch is sweet and flour is sour. I believe you use about half the amount of cornstarch when subsituting for flour.
To substitute flour for cornstarch in a recipe, use twice as much flour as the amount of cornstarch called for. For example, if the recipe calls for 1 tablespoon of cornstarch, use 2 tablespoons of flour. Keep in mind that flour may result in a slightly different texture in the final dish compared to cornstarch.
IF YOU MEAN FOR COOKING USE FLOUR.
To substitute cornstarch for flour in a recipe, use half the amount of cornstarch as you would flour. For example, if a recipe calls for 1 tablespoon of flour, you would use 1/2 tablespoon of cornstarch instead. Cornstarch is a good thickening agent, so it works well in recipes that require a thick consistency.
When iodine is added to cornstarch, a blue-black complex is formed. This is utilized as a simple test to detect the presence of starch in a given substance.
Yes, you can use cornstarch instead of flour in chicken marsala, but it will alter the texture slightly. Cornstarch will create a lighter coating and can help thicken the sauce more effectively than flour. Just be sure to use a smaller amount, as cornstarch is more potent as a thickener. Dust the chicken lightly with cornstarch before cooking for the best results.