Determines actual Vicinal Diketones (VDKs), 2,3‑butanedione (diacetyl) and 2,3‑pentanedione, in beer using Gas Chromatography – Electron Capture Detector (GC/ECD). ASBC Method: Beer-25.

All services require an estimated sample volume of 12oz/355mL, unless otherwise noted. If sending sample that is prior to packaging, please keep samples cold.

When ordering, please specify one of the following in Service Requested”:

1. AS-IS: the measured diacetyl levels in the beer (usually good for packaged samples)

2. TOTAL: the full potential diacetyl measurement if the beer was to warm or oxygenate (usually good for fermenter samples, coverts all diacetyl precursors into total potential diacetyl)