Dry Malt Extract, or DME for short, is a powdery substance made from real malt that has undergone a process to have most of the moisture evaporated out of it. You can get it in many different varieties and it can even be used on it’s own to make beer – for example during extract brewing.
The really nice thing about it is that it is easy to store, has a very extended shelf life and allows you to make very easy yeast starters! A true must have for all homebrewers.