Author: Andy

  • Do Fermentation Vessels Need to be Airtight? (Why?)

    Do Fermentation Vessels Need to be Airtight? (Why?)

    Andy

    Fermentation typically occurs in an anaerobic environment, meaning without air. This makes the formation of ethanol much more efficient. However, some forms of brewing, such as those that occur in open crocks or barrels, can allow for limited exposure to air. This is because, as explained in a previous article, that during active fermentation, the…

  • Diacetyl Rest in Beer Brewing – Explained!

    Diacetyl Rest in Beer Brewing – Explained!

    Andy

    Have you ever wondered what diacetyl rest is in beer brewing and why it is so important? Diacetyl, a compound that can affect the flavor of beer, needs to be carefully managed during the brewing process. In order to reduce it, brewers perform a so-called “diacetyl rest” after fermentation is completed. We will explore what…