mash
Quick Summary
Mashing is a crucial step in brewing beer and producing distilled spirits. Its primary purpose is to convert grain starches into fermentable sugars. This is achieved by mixing milled grains (grist) with water in a vessel called a mash tun, typically at temperatures between 62 to 72 °C (144 to 162 °F).12
During mashing, enzymes naturally present in malted grains break down starches into sugars. Other starchy materials like corn or wheat can also be added. The resulting sugary liquid is called wort, which is then separated from the spent grains. Different mashing techniques, such as infusion or decoction mashing, are used depending on the type of malt and desired outcome. This process is fundamental for creating the alcohol through subsequent fermentation by yeast.132
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
beerMixing the mashThe milled malt, called grist, is mixed with water, providing conditions in which starch, other molecules, and enzymes are dissolved and rapid enzyme action takes place. The solute-rich liquid produced in mashing is called the wort. Traditionally, mashing may be one of two distinct…
Read MoreThe milled malt, called grist, is mixed with water, providing conditions in which starch, other molecules, and enzymes are dissolved and rapid enzyme action takes place. The solute-rich liquid produced in mashing is called the wort. Traditionally, mashing may be one of two distinct…
Read More
distilled spiritPreparing the mashThe purpose of milling and pressing is to make the starch or sugar more available for enzyme action. Crushing and pressing (grapes and other fruits), milling (cereal grains), or a combination of milling and pressing (sugarcane) are used.
Read MoreThe purpose of milling and pressing is to make the starch or sugar more available for enzyme action. Crushing and pressing (grapes and other fruits), milling (cereal grains), or a combination of milling and pressing (sugarcane) are used.
Read More
