Three Days In: Inspired Paso Ale Ferments While Pioneer Days IPA Takes Shape
Brewing Update: Inspired Paso Ale Ferments, and Building Out Paso Pioneer IPA
It’s been three days since I brewed my most recent beer, the Inspired Paso Ale, which is now sitting in a clean, high-sided litter box in our spare bathroom tub — partially filled with water and draped with cooling towels to keep the temperature in range for fermentation. Not exactly the setup you’d find in a commercial brewhouse, but it’s doing the job. I’m holding steady between 66-68°F, which is right where I want it for a clean American ale fermentation.
It’s the first beer in what I’m calling the Paso Robles series, and while it does its thing in the tub, I’ve already started sketching out beer number two.
Enter Paso Pioneer IPA
The name is a nod to Paso Robles’ own Pioneer Day, a local tradition dating back to 1931 and held every October, built around a parade of antique tractors and horse-drawn wagons through downtown, followed by a free community bean feed in the city park. It’s one of those small-town traditions that’s stuck around almost unchanged for nearly a century, and given that I’m building out a series of beers tied to Paso’s identity, it felt like the right name to borrow for this one.
The beer itself: a West Coast IPA built around CTZ and Cascade hops. CTZ — Columbus, Tomahawk, and Zeus all share the same genetics, hence the acronym — brings clean, efficient bitterness with a slightly herbal, dank edge. Cascade is the counterpoint: grapefruit, citrus, floral. Put them together and you’ve got a classic 1990s/2000s West Coast IPA pairing, the kind of hop combo that built the whole West Coast IPA category before everyone moved on to the hazy, tropical stuff.
My plan is to let CTZ handle the bittering at the start of the boil, where its high alpha acids do the heavy lifting efficiently, then bring Cascade in later — a 20-minute addition, a flameout/whirlpool addition, and finally a dry hop after fermentation wraps up. Bitter with CTZ, build aroma and flavor with Cascade. Simple division of labor.
Rethinking the Grain Bill
I went back and forth on the grain bill more than I expected to. My first pass had Crystal 40L malt in there for a bit of color and caramel character — something I do almost by habit at this point. But the more I sat with it, the less I wanted that caramel sweetness anywhere near this beer. West Coast IPA is supposed to be dry and crisp, with the hops doing all the talking. Crystal 40L would’ve also pushed the color up to around 7 SRM, and I wanted something a few shades lighter — more pale gold than light amber.
So it’s out. In its place, I’m leaning on Carapils for body and head retention, with Munich I staying in as the only real “character” malt, just there to add a touch of malty depth without competing with the hops. It’s a smaller change than it sounds, but it matters. The goal with this beer isn’t malt complexity — it’s letting CTZ and Cascade do the heavy lifting while the malt just gets out of the way.
A Deep Dive Into Water Chemistry
The other rabbit hole I’ve fallen into lately is water chemistry. Since I brew with a reverse osmosis system, I’m essentially starting from a blank canvas every time — no minerals, no baseline profile to work around, just whatever I decide to build in. That’s both a luxury and a responsibility. Done right, it lets me tailor the water to whatever style I’m brewing instead of fighting against tap water that wasn’t built for beer in the first place.
For this IPA, I’m targeting a mash pH between 5.3 and 5.6 — the sweet spot for enzyme activity, hop utilization, and avoiding the harsh, astringent edge that comes with mashing outside that range. Gypsum is already part of the plan, both for the sulfate boost (which tends to make hop bitterness read crisper and drier) and for a small pH nudge. Lactic acid is the other tool I usually reach for when I need a more direct correction.
But I’ve been reading up on acidulated malt as an alternative, and it’s got my attention. The math is simple: roughly 1% of your grain bill in acidulated malt drops your mash pH by about 0.1. No metering out drops of acid, no second-guessing whether you’ve overshot — just swap in a small percentage of your base malt for acidulated malt and let the chemistry do its thing. It’s a more “brewer’s” way of solving the problem compared to reaching for a bottle of synthetic acid, and it fits the way I like to approach this hobby in general — fewer additives, more ingredients doing double duty.
I haven’t locked in the final percentage yet, but it’s looking like the front-runner over straight lactic acid for this batch.
What’s Next
Inspired Paso Ale still has a week or so of primary fermentation ahead of it before I think about dry hopping, so there’s time to keep refining the Pioneer Days IPA recipe before it’s actually brew day. Next up: finalizing the water profile, settling on final hop weights, and figuring out exactly how much acidulated malt earns a spot in the mash. More to come as the grain bill firms up.