Growing your own bean spouts is surprisingly easy to do. All you need is a couple of jam jars to make loads of healthy, nutritious bean sprouts to add to salads and stir fries. Mung bean & lentil sprouts can be done together in the same jar and take about 3 or 4 days depending on the warmth of the kitchen. Alfalfa takes a day or two longer so is best grown in its own jar….