FMECA for Contamination of a Two Stage Closed Fermentation ProcessSam Gambrell

DSES-6070 HV5

Object of Study Description

Beer brewing Two Stage Closed Fermentation Process

Contamination Bacterial or Wild Yeast

Will give an off taste Will interfere with yeast’s fermentation Will not kill you

Methodology Used

Data obtained from Personal Experience Brewing How-To’s Speaking with other home brewers

FMECA Created on possible methods of contamination

during the major steps

Results

FMECA Two worst cases occurred during the cooling of

the wart and the adding of the yeast before sealing the wart & yeast in the first stage fermenter

Further research shows that wart coolers can be used to reduce the time needed for the wart to cool thus reducing the time the wart is exposed to the open environment

Conclusion

In order to brew a better beer: Full understanding of process Proper sanitation of all

equipment being used A clean environment to work in

and temporarily store equipment