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.
Vegetarian Cooking for Everyone years ago, for myself, a single book to inspire me and broaden my culinary imagination: "Vegetarian Cooking for Everyone," by Deborah Madison, .." and "The New Yorker" "found Madison to be a charming and non-threatening psychopomp into the realm of what I imagined to be the half-dead, the eaters of what she frequently calls “plant food,” which, to me, sounded like “fish food.”" "Publishers Weekly" gave a starred review writing "Many have tried to create a reliable, encyclopedic vegetarian cookbook, but few have succeeded. Madison (The Greens Cookbook; The Savory Way) comes through with a weighty volume.." and called it