White Labs | WLP066 London Fog Ale Yeast® | PurePitch® Next Generation

Regular price $14.99
White Labs WLP066 London Fog Ale Yeast® enhances tropical hop character while delivering a smooth, velvety finish with balanced residual sweetness.
  • Tropical fruit aroma with residual sweetness
  • Smooth, velvety finish
  • 70 mL pouch treats a 5 gallon batch

Ice pack:

Ice Packs / Shipping: For best results, we strongly recommend adding an ice pack to your liquid yeast order. Ice packs do not guarantee that the yeast will arrive cold, but will keep yeast colder for longer during transit. We can not replace yeast that arrives warm. In warm weather months, we highly encourage choosing dry yeast.

Storage: Store in the fridge (33–38ºF). Do not freeze. Pitch cold - do not warm to room temp prior to pitching. Use within 4 months for direct pitching. For pouches older than 4 months, or that are warm, use a yeast starter to boost cell count.

Fermentation Temp Range
Each yeast strain has a temperature range where it performs best. Lagers require cooler temps, while Kveik yeasts can ferment in extreme heat. Maintaining the proper fermentation temperature for each yeast strain is crucial its health. Matching a yeast's ideal range to your environment (or your ability to control temp) is key to getting clean, consistent results.
Scale from 30°-120°F
Product Analysis
This typical analysis is not to be construed as product specification. Typical analysis represents average values, not to be considered as guarantees, expressed or implied, nor as a condition of sale.

Yeast Format, Liquid
Yeast Style, Ale
Flocculation, Low to Medium
Attenuation, 75~82%
STA1, Negative
Fermentation Temperature Range, 64~72°F
Alcohol Tolerance, 5~10%

WLP066 London Fog Ale Yeast is widely used for hazy and juicy IPAs due to its ability to amplify tropical fruit esters and create a rounded, pillowy body. It produces expressive stone fruit and citrus notes that complement modern hop varieties.

With attenuation between 75–82% and low to medium flocculation, this strain supports stable haze and a full mouthfeel. Ferments best between 64–72°F, with warmer temperatures increasing fruity ester intensity.

WLP066 excels in hop-forward, haze-driven styles.

Ideal for:

• Hazy IPA
• New England IPA
• Juicy Pale Ale
• Double IPA
• English IPA
• American IPA

• Store refrigerated at 33–38°F
• Do not freeze
• Pitch cold into well-oxygenated wort
• Ferment between 64–72°F
• Warmer temps increase tropical fruit character
• Use within 4 months for best viability

Brewing Support, Anytime.

From step-by-step instructions to video tutorials and real human support - our brewing experts are just an email away.

Quality You Can Trust.

We use the same premium grains, hops & yeast trusted by the pros. No shortcuts. No substitutes. Just the good stuff.

The "We Got You" Guarantee.

We’re committed to your first batch being a great one. If something goes sideways, we’ll help you troubleshoot or replace what you need - fast.

White Labs | WLP066 London Fog Ale Yeast® | PurePitch® Next Generation
From $14.99

Frequently Asked Questions

WLP066 produces tropical fruit esters with a soft, slightly sweet finish that enhances hop-forward beers.

Yes. It is specifically favored for hazy and juicy IPAs due to its ester profile and mouthfeel.

Each 70 mL PurePitch® Next Generation pouch contains approximately 150 billion cells, designed to treat 5 gallons of wort.

Ferment between 64–72°F. Warmer temperatures increase fruity ester expression.

For standard gravity 5-gallon batches, a starter may not be required. For higher gravity beers or older yeast, a starter is recommended.

What Our Brewers Are Saying
Inspired By Your Browsing History