181.—Testing Sugar.
Granulated sugar is considered the best to use, as it is less liable to adulteration than any other kind. Of moist sugars, Demerara is the best. The simplest way to test sugar for its purity is to dissolve a little in a glass of clear water. If the sugar be quite pure the water will only be slightly thickened, but not in the least clouded, neither will there be any sediment. In keeping sugar care should be taken to protect it from dampness and vermin—especially ants.