Information from White Labs:

PurePitch® Next Generation is designed to pitch at a rate of 7.5 million cells/mL, a commercially recommended pitching rate for standard ale ranges. 

ONE SIZE DOESN’T FIT ALL

Our easy recommendations work for most fermentations, but we recommend doubling your pitch rate when starting your fermentation below 61℉/16℃ OR at a higher gravity of 18P (1.074 OG) or higher. If your fermentation has both, we recommend tripling your pitch rate. 

This very expressive strain produces phenol forward flavors and aromas reminiscent of clove, allspice and peppercorns. It has medium to high alcohol tolerance and is ideal for many classic Belgian styles including saisons, witbiers, blondes and browns.

WLP550 Belgian Ale Yeast is POF+, this strain will contribute phenolic characteristics to finished products.

Attenuation: 78% – 85%
Flocculation: Medium
Alcohol Tolerance: Medium – High (8 – 12%)
Optimum Fermentation Temperature: 68°F – 78°F