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Juicy West Coast IPA


I am working on brewing a west coast IPA using a fairly new yeast from Lallemond called Pomona Hybrid IPA yeast. This is usually used when making a hazy IPA due to the stone fruit flavors and biotransformation properties it has, like nectarine and peach.


I was hoping to use it for a newer style juicy IPA that still finishes bitter and mostly clear. I will update this post when I finalize my recipe and see what happens but here's what ChatGPT had to say about this idea. I must admit this is a really well thought out response:


Can you give me some tips on using Pomona yeast for making a west coast ipa rather than a hazy ipa?


Absolutely. Pomona has become popular because it's often associated with hazy IPAs, but it can make an excellent modern West Coast IPA if you adjust your process. The key is steering the yeast toward crispness and hop expression rather than biotransformation and fruit-forward softness.

What Makes Pomona Different?
Pomona Yeast was developed to emphasize hop aroma and produce moderate fruity esters (peach, apricot, citrus), while still attenuating well. It doesn't have to create a juicy New England-style IPA.

For a West Coast IPA, think of Pomona as sitting somewhere between:
  • Chico Yeast (clean and neutral)
  • London Ale III (fruity and soft)
You can use process controls to push it closer to Chico.

1. Ferment Cooler
One of the biggest changes:
West Coast IPA
  • Start at 63-65°F
  • Hold for 3-4 days
  • Allow to rise to 67-68°F to finish
Hazy IPA
  • Typically fermented 68-72°F
The cooler fermentation suppresses excessive peach and stone fruit esters and allows hops to be the star.

2. Skip Early Dry Hopping
Many hazy brewers add hops during active fermentation for biotransformation.
For a West Coast IPA:
Avoid
  • Dry hop at high kräusen
Instead
  • Add most or all dry hops after fermentation is complete
  • Dry hop 2-4 days at 60-68°F
This preserves cleaner hop character and reduces "juice bomb" flavors.

3. Increase Sulfate
Water chemistry may be more important than yeast selection.
Typical Hazy Profile
  • Chloride: 150-200 ppm
  • Sulfate: 50-100 ppm
Typical West Coast Profile
  • Sulfate: 200-300 ppm
  • Chloride: 50-80 ppm
A sulfate-forward profile sharpens bitterness and helps offset Pomona's natural fruitiness.
A good starting point:
Ion
Target
Sulfate
225 ppm
Chloride
65 ppm
Calcium
75-100 ppm
4. Mash Lower
To get that crisp West Coast finish:
  • Mash at 148-150°F
  • Aim for FG around 1.008-1.012
Pomona attenuates well, so it can produce a surprisingly dry beer if given a highly fermentable wort.

5. Choose Classic West Coast Hops
Instead of leaning into tropical varieties, use combinations like:
Traditional
  • Cascade
  • Centennial
  • Chinook
  • Columbus
Modern West Coast
  • Simcoe
  • Mosaic
  • Amarillo
  • Idaho 7
Arizona-Friendly Combination
  • Simcoe
  • Centennial
  • Mosaic
This gives pine, citrus, grapefruit, and resin with enough modern character.

6. Consider a Small Bittering Charge
Many hazies rely heavily on whirlpool hops.
For West Coast IPA:
  • 40-60 IBU total
  • Add a firm bittering charge at 60 minutes
Examples:
  • Columbus
  • Magnum
  • Chinook
This creates the classic snappy finish.

7. Clarify the Beer
Pomona can remain somewhat hazy if treated like a hazy IPA.
For a brighter West Coast IPA:
  • Use Whirlfloc or Irish Moss
  • Cold crash aggressively
  • Fine with gelatin if desired
  • Give the beer an extra week cold before packaging
You'll be surprised how clear it can become.

Example Pomona West Coast IPA Recipe Concept
OG: 1.064FG: 1.010ABV: ~7.1%
Grain Bill
  • 92% 2-row
  • 5% Vienna
  • 3% Carafoam
Water
  • Sulfate: 225 ppm
  • Chloride: 65 ppm
Hops
  • Magnum @ 60 min
  • Centennial + Simcoe @ whirlpool
  • Simcoe + Mosaic dry hop
Yeast
  • Pomona at 64°F

Result:
  • Bright citrus
  • Pine and grapefruit
  • Moderate peach ester background
  • Dry finish
  • Modern West Coast character rather than hazy IPA

For Seasons of the Brew, a fun experiment would be brewing the exact same wort with Pomona and a Chico strain such as SafAle US-05 side-by-side. The comparison would make an excellent article because you'd isolate exactly what Pomona contributes to a West Coast IPA. The differences are often subtler than many brewers expect when fermentation temperature and dry hopping are adjusted toward a West Coast process.


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