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Seasonal Yeast – Wyeast 3203-PC De Bom Sour Blend™


This article is one in a series describing the seasonal yeasts put out by our liquid yeast manufacturers. This one is..

Wyeast 3203-PC De Bom Sour Blend™OrderNowButton[1]

“Wyeast’s QC Manager and World’s Tallest Microbiologist Greg Doss developed De Bom to create authentic Old- and New-World sour ale profiles but in a fraction of the time required by previous, less manly cultures. For best results, we recommend the following: no O2/aeration at beginning of fermentation; periodic dosing with O2 during fermentation to stimulate ethyl acetate production; frequent sampling to monitor development and complexity. Under optimum conditions, beers can be ready for consumption in 1-2 months.”

Vital stats:

Attenuation – 75-85%
Flocculation – Varies
Optimum Ferment Temp. – 80-85°F
Alcohol Tolerance – 10%

Manufactured July through September. Could be available through March.

Be sure to check out the other seasonal yeasts for this period:

White Labs: July-Aug 006 Bedford British Ale, 540 Abbey IV Ale, 585 Belgian Saison III Sept-Oct 039 East Midlands Ale, 709 Sake #9, 885 Zurich Lager

Wyeast: 3209 Oud Bruin Blend™, 5223 Lactobacillus brevis