Package your product with confidence--test for microbial contamination using polymerase chain reaction (PCR) technology! Our versatile subscription model allows you to specify which microbe you'd like to test each sample for: S. cerevisiae var diastaticus, Brettanomyces, or lactic acid bacteria. Subscribers are entitled to priority processing with same day or next day results guaranteed! Choose from 6, 12, or 24 tests per month.