Using this test, brewers simply add beer samples to BACTEST's sterile gamma irradiated culture vessel populated with its newly developed media product called YMC, which is designed to detect wild yeasts.
The vessel is then incubated inside the retro-looking Speedy Breedy respirometer – launched in late 2012 and validated by Campden BRI – that can be used within the brewery and produces results in as little as 5.8 hours.
This compares favorably with the current practice of sending samples to a lab, which takes between three to five days excluding transportion, and BACTEST CEO Annie Brooking tells BeverageDaily.com the system is unique.
What dangers do wild yeasts bring? Well, contamination can indicate uncontrolled processes or insanitary procedures that may mean problems – lower terminal gravities in beer, incorrect alcohol content, off flavors.
Wild yeasts can cause major brand damage
Fast identification of yeasts means brewers do not make the mistake of bottling contaminated beer, while affected equipment can be quickly sanitized to stop spoilage of subsequent batches.