This is a physical test. A chemical test for starch is to add iodine solution (red) and see if it turns blue/black in colour. It is possible to distinguish starch from other carbohydrates using this iodine solution test.For example, if iodine is added to an peeled potato then it will turn black.his is a physical test. A chemical test for starch is to add iodine solution (red) and see if it turns blue/black in colour. It is possible to distinguish starch from other carbohydrates using this iodine solution test.
Moving to French cuisine, one of my favourite ways of using up stale bread is in a simple Gascon soup, Garbure, made with layers of bread and cabbage, flavoured with ham, beans and vegetables. Cookery writer Kate Hill's recipe is gorgeous.
At the Passover seder, it is customary to eat matzah made of flour and water; matzah containing eggs, wine, or fruit juice in addition to water is not considered acceptable for use at the seder. The flour can be made from the five grains mentioned in the Torah: wheat, barley, spelt, rye and oats.t the Passover seder, it is customary to eat matzah made of flour and water; matzah containing eggs, wine, or fruit juice in addition to water is not considered acceptable for use at the seder. The flour can be made from the five grains mentioned in the Torah: wheat, barley, spelt, rye and oats.