Hi Chris,
One of the most common causes of inconsistent haze with haze-positive yeast like Helio Gazer is dry hop timing (thanks Ivan for pointing to our research!). Early dry hop actually prevents haze whereas late dry hopping close to or after reaching terminal plato is most effective for promoting haze. Combining even a small (<0.5 lb/bbl) addition of hops early in fermentation can prevent haze from forming with a late dry hop. Similarly, too much carryover of hop material from the whirlpool and dip hopping with pellets might potentially limit haze as well. Maybe this is related to some of the inconsistencies you are seeing even when dry hopping after 6 plato. These tips apply when the majority of haze is coming from dry hopping and yeast, and may not influence haze generated by protein, b-glucans, and/or polyphenols coming from the malt and hops. Your last comment there is also important to consider. We have seen that hop variety can influence the amount of haze. Hope this helps! If not, we still have more to learn, and feel free to send me an email!
Laura
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Laura Burns
Director of Research and Development
Omega Yeast
Chicago IL
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Original Message:
Sent: 06-26-2024 13:46
From: Christopher Courtney
Subject: Haze Stability in Hazy IPA with Fermentation DH
We have two different hazy IPAs that we fermentation DH. In both brands we use OYL-405 Helio gazer. We have had some issues with haze stability and feel like we have made some progress by getting the DH in at 7-6 Plato. If we do it above 7 or below 6 it goes clear. This results in a dry hop on the first or second day. With a total residence time of 14 days. We then run it though a Brew 250 from Alfa Laval. Here we see the DH in our range run at 3 cube and 12% Outlet turbidity. On the other hand we will run the other (less Haze) around as fast upwards of 10 cubes as possible and get 5-7 outlet turbidity.
Brand A uses malted Oats and red wheat at 10% each
Brand B uses White wheat at 20% and Dextrin at 10%
Has anyone else been seeing this? and does anyone have any other thoughts on Haze stability that I might not be thinking about?
I have started to wonder if the hop variety has a much larger role than I was thinking.
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Christopher Courtney
Head Brewer
Mother's Brewing Co
Springfield MO
(417) 862-0423
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