This article is one in a series describing the seasonal yeasts put out by our liquid yeast manufacturers. This one is..
White Labs WLP540 Abbey IV Ale Yeast
“An authentic Trappist style yeast. Use for Belgian style ales, dubbels, tripples, and specialty beers. Fruit character is medium, in between WLP500 (high) and WLP530 (low).”
For best results, additional aeration is recommended.
Attenuation – 74-82%
Flocculation – Medium
Optimum Ferment Temp. – 66-72°F
Alcohol Tolerance – High
Manufactured July and August. Could be available through February.
Be sure to check out the other seasonal yeasts for this period:
White Labs: 585 Belgian Saison III