Mustard (condiment) glucosinolates in mustard plant varieties, and the different isothiocyanates that are produced, make different flavors and intensities. Prepared mustard condiment may also have ingredients giving salty, sour (vinegar), and sweet flavors. Turmeric is often added to commercially prepared mustards, mainly to give them a yellow color. Prepared mustard is sold in glass jars, plastic bottles, or metal squeeze tubes. Because of its antibacterial properties, mustard does not require refrigeration for safety; it will not grow mold, mildew, or harmful bacteria. Mustard can last indefinitely without becoming inedible or harmful, though it may dry out, lose flavor, or brown from oxidation.
Convenience cooking Convenience cooking Convenience cooking is the practice of streamlining recipes for simplicity and speed of preparation. It is a common practice in Western cultures, where both men and women work outside the home and elaborate meals are difficult if not impossible to pull off given the time constraints. Though seemingly a recent phenomenon, guides to convenience cooking go as far back as 1930 "French Cooking in Ten Minutes" by Edouard de Pomiane, which tried to minimize the time put into much French cooking of the day. Current well-known practitioners of the art include Rachael Ray and Sandra Lee; in addition,