4 pack of Alcotec Alpha Amylase Enzyme 5g. Can convert the starch content from up to 11 pounds (5kgs) of grain so it can be fully fermented to alcohol. This is a high temperature tolerant enzyme with very high enzymatic activity. This can be used for pre-processing of a grain (or any other starch rich material) based mash or wort before fermenting. This enzyme is sourced from a higher quality producer than many other Alpha Amylase products on the market and is not cut with dextrose.