Beer Manufacturing Process: Quality Control
Currently, there are over 1000 craft breweries spread across every province and territory in Canada, marking a period of rapid growth in this industry. Canada is renowned for producing some of the finest raw materials used in beer production, particularly sought-after barley.
Similar to any food product, beer undergoes rigorous quality control procedures throughout its manufacturing process. From malting to bottling, numerous measures are implemented to guarantee the production of a compliant and safe-to-consume product.
What threats does beer face?
During fermentation, yeasts are introduced to produce alcohol. This phase can also facilitate the growth of bacteria such as Pediococcus and Lactobacillus, which are ethanol and hops tolerant and convert wort sugars into lactic acid rather than alcohol. These bacteria, responsible for 60 to 90% of brewery contaminations, can noticeably impair beer quality. They can:
- Impart an acidic, less sweet taste
- Cause a cloudy appearance
- Lower pH due to the presence of lactic acid
- Reduce alcohol content by fermenting sugars
- Increase the risk of bottle explosions due to bacteria consuming all sugars
Additionally, mold can develop during preparation in humid environments with a food source. Hence, proper sanitization of brewing tanks and kegs is critical.
Quality Control
To prevent bacteria and mold from contaminating beer, it is vital to conduct various tests and analyses regularly. Sampling at different stages of the brewing process helps monitor oxygen levels, density, and pH and detect potential contaminants in tanks before they become problematic.
Various sampling techniques are employed to maintain beer quality. LABPLAS offers a diverse range of sterile equipment, including sampling bags, which are more convenient and require minimal storage space compared to vials, aiding breweries in this crucial process.
The final brewing stage: bottling
Bottling represents the culmination of the brewing process, allowing beer to further develop as yeast continues fermenting over approximately two weeks. Even at this stage, thorough disinfection of bottling equipment, including bottles, is essential to prevent contamination.
In summary, whether crafting artisanal brews or large-scale productions, stringent manufacturing processes are essential to ensure exceptional sensory quality and safety for consumers of this beloved alcoholic beverage.
