2019 Kombucha ERP - Review Book

Christopher Dent From:

RichardSchmidt@eurofinsUS.com Monday, December 2, 2019 4:04 PM

Sent:

Christopher Dent Blake Ebersole

To: Cc:

Subject:

Feedback on AOAC Kombucha ERP

Follow Up Flag: Flag Status:

Follow up Flagged

Hello,  As you prepare for your AOAC expert panel meeting on December 3, to vote on AOAC Final Action official method for  the ethanol in kombucha method, I wanted to provide feedback on the method performance.   1. What's the estimated number of samples of kombucha you have tested with the method?     Eurofins: We have utilized the method for over 1500 samples from 30 different customers since 2017.  2. What is the method performance, % RSD, etc?   Eurofins: Unfortunately, it would take some time to compile stats on the method, but general feedback is that it  is a very robust and reproducible method.  Check samples pass with every analysis very consistently.  3. Any method modifications or improvements?   Eurofins:  We needed to add a prep step that included removing additions such as chia seeds and other additives  that we are seeing in the kombucha being tested.   4. Any other comments?  Eurofins: Analysts like the method, no additional feedback. 

Best regards,  Rich 

Rich Schmidt Principal Investigator

T: 1.608.949.3157 M: 1.608.358.5021 RichardSchmidt@eurofinsUS.com Eurofins Food Integrity and Innovation 3301 Kinsman Blvd., Madison, WI 53704 USA

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