Since the Neolithic revolution, when the implementation of agriculture paved the way for human civilization, society has been inextricably linked to the art of brewing beer. Little has changed over the ensuing millennia, as creating new brews and experimenting with recipes remains a popular business (and hobby) in the 21st century — some people have even turned Lucky Charms into beer, for example.
Because beer is made through a biochemical process called ethanol fermentation, in which yeast converts sugar into alcohol and carbon dioxide, a successful batch requires specific conditions. Failure to maintain these conditions can result in the beer becoming contaminated with mold or bacteria. In an exclusive interview with Mashed, co-owner and head brewer of Spice Trade Brewery + Kitchen Jeff Tyler helped hobbyists avoid the biggest mistakes people make when brewing beer by explaining four non-negotiables: cleaning, sanitization, healthy yeast, and temperature control.
When unwanted bacteria find their way into your fermentation vessel, your beer can become infected. As such, a good batch always begins with clean tools. “Make sure you spend the time to ensure every piece of your equipment is clean,” Tyler told Mashed. Only after removing debris and buildup should you use a sanitizing chemical to kill any unseen organisms that may linger on your brewing equipment. “[This] will ensure that your yeast is the only organism in your beer and help prevent contamination, off flavors, and bad batches,” he explained.
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Once your brewing equipment is clean, your attention should turn to your yeast. Jeff Tyler, a brewing expert, spoke to Mashed about this important ingredient. Instead of dry, store-bought yeast, Tyler recommends fresh yeast or a damp block of yeast cells that need refrigeration. Aside from the quality of yeast, Tyler emphasises that the number of yeast cells is crucial to the brewing process. Typically, 1 million yeast cells per millilitre of wort should be used, but the desired ratio can differ depending on the type of beer you’re making.
Keeping temperature under control during fermentation is also critical. Generally, yeast creates the tastiest beer between 66 and 72 degrees Fahrenheit. Because fermentation generates heat, it can be difficult to prevent the liquid’s temperature from exceeding this range. “If you can’t regulate the temperature of your batch, store your beer in a cool, dark location,” suggests Tyler. He also recommends kveik yeast, a variety which can handle higher temperatures. Your brewing could improve by following Tyler’s advice, possibly earning a place among the ranks of history’s great brewers.
Read the full article on Mashed.
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