Barley, millet, oats, quinoa and rice are classic bulk food items, and these days, many markets sell interesting varieties such as ruby red jasmine rice and black beluga lentils. Round airtight containers are best, since square containers can be packed next to one another and air won't circulate (which can raise the temperature inside the jars). Most will keep for years. Brown rice, though, has a much shorter shelf life, for the same reason whole grain flours do. You can store it for about six months in your refrigerator or freezer. Rancid rice won't necessarily make you sick, but it won't be as nutritious or flavorful. These brown rice and lentil burgers are just one delicious way to use brown rice.