Today I'm brewing an experimental beer making use of one of Omega's Thiolized yeasts as well as Phantasm powder. Both of these products have been available in the homebrew world for awhile, so I realize I'm a little late to the party. I love hop-forward beers like IPAs, but I don't brew them all that often for two main reasons:
- There is no shortage of fresh commercially brewed IPAs. In fact, the last time I went to GABF in Denver, at least half the menu boards in a lot of the taprooms listed so many IPA and NEIPA beers that it was almost hard to find anything but an IPA. I think you could argue the saturation level of IPAs has caused lots of issues for the craft beer industry, but I digress.
- IPAs have a relatively short shelf life compared to many other styles. They can still be great, but I have a hard time finishing a keg before I start to notice hop character falling off, and that really bums me out. I tend to only brew IPAs when we have something going on where I know there will be more people around.
So those are the reasons why I don't typically brew IPAs often. So why am I brewing one today? Omega Yeast released their thiolized yeasts a while back and I'd always wanted to try brewing with them and just never got around to it. They recently announced that they're pulling these strains from the homebrew market, so if I was ever going to do it, it needed to be very soon. On that same note, Phantasm powder was released a while back as well. This product is from New Zealand and is made from white grape skins containing high levels of thiol precursors. I bought a small packet of Phantasm over a year ago with the intent of using it in an IPA, and I just recently bought an additional pound of Phantasm at a highly discounted rate (likely due to the Omega strains being discontinued). I'm curious as to how it could be used in sour beers as well, but bought it to be used in hop-forward beers. So here we are, about to brew an experimental "IPA-ish" beer.
There is a lot of info about brewing with both products, so I'm not going to go too deep into either other than to say these products can bring out fairly intense fruity, especially tropical fruit character in your beer. A lot of the modern trademarked hops that are so popular today also feature similar fruity flavors and aromas. The thought is that pairing thiolized yeast with products like Phantasm powder can bring out tons of fruity character in a beer without having to use huge, arguably wasteful, hop additions...fingers crossed!
One thing that I look for in beers, especially hop-forward beers, is the complimentary layering of hop flavors and aromas. Almost everything I've read indicates the character from the thiolized yeast is pretty surprising, but at the same time they're not all saying they love it. I've heard some comparisons to body odor and others saying it's reminiscent of lemon-scented cleaners...neither is what I'm after here. I'm going to try employing a couple measures to help ensure I end up with something complimentary without it being a one note wonder thiol beer or something that wrecks your palate.
This definitely is an experiment. I've read through numerous blog posts, including one from Scott Janish that got very technical. I've talked with some commercial brewers that have experimented with both products, one in particular that I really trust because he has a very balanced approach to the beers he brews. So here are my plans for the first attempt:
- Star Party (SP) is the strain I'm using and it's known to produce much higher thiol levels than the first thiolized strain that Omega released, Cosmic Punch (CP). CP is reportedly around a 5x multiplier of thiols, whereas SP may be up to a 300x multiplier. I'm going to try using a blend of US-05 and SP to restrain things a bit and see where that gets me.
- Normal dosage rate of Phantasm powder is between 1-2.5oz per 5 gallon batch. I'm going with the low end at 1oz for this batch.
- According to what I've read, bract (vegetative matter) from hops can negatively impact thiols, especially when added via dry-hopping, more so late vs. early in the fermentation process. I'm using a reduced amount of Phantasm powder and a blend of yeasts, but I'm still hoping for some noticeable thiol character, so I'm going to try using all Cryo hops (reduced bract) without any dry-hop additions in this beer. There will be a small hop shot addition for bittering, flame out additions, and whirlpool (sub isomerization) additions.
- I've seen a few comments indicating a slightly sweeter beer works better with thiolized yeast. I've also seen that some have indicated the malt profile seems to disappear. Because of this, I'm shooting for a water profile more typical for a NEIPA with a higher chloride to sulfate ratio to emphasize malt character over bitterness.
The grain bill for this beer is based on Juicy Bits from WeldWerks, but I've changed up the hop additions substantially from the published recipe I found. So just to be clear, this isn't intended to be a clone recipe, this is just what I thought might be a good base beer for trying this experiment. Here's the recipe as I'm brewing it today and I'll be sure to post follow-up comments after tasting.
Target OG 1.062
Target FG: 1.012
IBU: 46
ABV: 6.5%
3.5625# Proximity 2-row Pale Malt
3.5625# North Star Pilsner Malt
0.875# Rahr Dextrine Malt
0.625# Flaked Oats
0.625# Flaked Wheat
0.625# Rahr White Wheat Malt
1g BrewTan B (Mash)
6oz Dextrose (Boil)
2ml Hopshot (60 min)
4.66g BCAA (10 min)
Yeast Nutrient
Whirlfloc
9g Mosaic Cryo (Flameout)
9g El Dorado Cryo (Flameout)
1oz Phantasm (Whirlpool)
19g Mosaic (Whirlpool, after temp is below 160F)
19g El Dorado (Whirlpool, after temp is below 160F)
Blend of US-05 and Star Party
Water Profile using Epsom Salts and calcium chloride
250 chloride
80 sulfate
Mash at 149F, 90 minute boil, chill to 65F, ferment at 67F.
Water Profile
Target Water Profile | |||||
Ca | Mg | Na | SO4 | Cl | HCO3 |
141.1 | 20.9 | 0 | 82.4 | 249.7 | 0 |
Desc: To 10 gallons of RO/distilled water, add:
- 19.6g Calcium Chloride
- 8.0g Epsom salt
Brewing Notes
This is the first brew session with my re-built and upgraded grain mill. I'll be creating a post for it in the not too distant future. In the meantime, here's a link to my original grain mill build.
Session Readings | |
Beginning mash pH | 5.09 |
Ending mash pH | 5.06 |
1st running gravity | 19.2 (1.077) |
Pre-Boil gravity | X (miss) |
Pre-Boil pH | X (miss) |
Post-Boil gravity | X |
Post-Boil pH | X |