It is easy to understand that the optimum stage for interrupting the germination is when the malt is rich in enzymes, achieved sufficient endosperm modification and have consumed as little reserve materials (starch, proteins) as possible during embryo development. At this point, germination is arrested by kilning (drying). After complete kilning, the pale-malted barley is known as Pilsener malt. All other varieties of malt derive from this point by kilning or roasting at different temperatures. However, the more the malt is heat treated, the greater is the damage to the enzymes. So, while Pilsener malts are the richest in enzymes, chocolate malt (thoroughly roasted) have no enzymatic activity at all.