To grow lentil or bean sprouts, all you need is a large glass jam jar, some whole dried lentils, or mung beans, (dried pulses from the supermarket usually work fine). There is no need to buy a sprouting jar or kit - any large jam jar works just as well (and better than some kits I’ve tried). The secret to success is rinsing twice a day - and to use water at room temperature (freezing water straight out of the tap can shock your sprouts). Health warning: In most instances sprouts are a super heal