In a brewhouse system, which refers to the equipment used for brewing beer on a larger scale, such as in commercial breweries, the mashing process typically involves a combination of multiple methods. Here are the common mashing methods included in a brewhouse system:
Single Infusion Mash: This is the most common mashing method used in a brewhouse system. It involves a single rest temperature where crushed malt is mixed with hot water in a mash tun, and the temperature is held constant to facilitate starch conversion.
Decoction Mash: Decoction mashing is occasionally employed in a brewhouse system, especially for brewing traditional European beer styles. It involves drawing a portion of the thick mash and boiling it before returning it to the main mash, raising the temperature and activating enzymes.
Step Mash: A brewhouse system often allows for step mashing, which involves multiple rest temperatures during the mashing process. Brewers can program the system to raise the temperature in distinct steps to activate different enzymes or achieve desired characteristics.
Temperature-Controlled Infusion Mash: Brewhouse systems are typically equipped with precise temperature controls that allow for temperature-controlled infusion mashing. Water is added to the crushed malt at specific temperatures to achieve the desired rest temperatures without the need for additional heating or boiling.
Mash Filter: Some advanced brewhouse systems use a mash filter instead of a traditional mash tun. A mash filter allows for more efficient separation of the liquid wort from the spent grain by using pressure and a fine mesh filter. This method can offer advantages in terms of efficiency and flexibility in recipe formulation.
It's important to note that the specific mashing methods available in a brewhouse system can vary depending on the manufacturer, design, and customization options. Brewers can select the desired mashing methods based on the beer styles they produce, recipe requirements, and their brewing techniques. The flexibility and capabilities of the brewhouse system play a crucial role in determining the mashing methods that can be employed.