Tag Archives: American pilsner

AquiloPils

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Concept beers are fun–building a recipe around a story has a mix of constraint and creativity that scratches the brewer’s itch for me. A new opportunity for such a beer popped up recently, when a little dinosaur with which I am very familiar unexpectedly wandered into the spotlight. Aquilops (pronounced “uh-QUILL-ops), a raven-sized cousin of Triceratops that lived in Montana around 106 million years ago, is somehow going to make an appearance in the upcoming Jurassic World movie! As lead author on the original Aquilops publication (along with colleagues Rich Cifelli, Des Maxwell, and Matt Wedel), this was quite a surprise. The 12 year old me who watched Jurassic Park in the theater is pretty geeked out that one of “my” dinosaurs is joining the cast of a Hollywood blockbuster franchise. This dino is in Lego kits, FunkoPops, action figures, Dr. Pepper cans, and even a Scarlett Johansson ASMR video. That’s cool, but what about a beer? I can only guess that the cute dinosaur aimed selling merchandise to kids is not going to be showing up on beer cans anytime soon, so I had to take matters into my own hands.

Aquilops is no stranger to beer recipes–back when we named it, I brewed “Eagle Face Oatmeal Stout” (referencing the translation of the name from its Greek and Latin roots). The beer was served in our club booth at AHA, and even graced the pages of Zymurgy magazine. The oatmeal stout is pretty tasty, but we’re not really in oatmeal stout weather at the moment. I wanted a crisp and quaffable lager to put on tap, and thus AquiloPils was born.

The original fossil skull of Aquilops was found in Montana, and its closest known relative lived in Japan, so a pilsner with nods to classic American lagers and Japanese lagers evolved naturally. Plus, these kinds of beers are a fun technical challenge and always a crowd pleaser. I sourced Montana-grown barley malt, and Sorachi Ace hops were a perfect fit for the recipe (the ones I got from my LHBS were American-grown, which followed the theme nicely). This kind of beer needed an adjunct, so I used 10% flaked rice in the grist. I wanted a perfectly crisp and dry beer, and thus incorporated a long and low mash rest. Finally, because this is supposed to have a very clean yeast profile, I chose Novalager. The brewing process went smoothly, and after some time cold conditioning as well as a dose of Biofine Clear, the beer was brilliantly clear and incredibly tasty.

Matt–one of my co-authors on the paper, a good friend, Aquilops enthusiast, and the person who brought me on to the project in the first place–celebrated a milestone birthday recently, so I was proud to provide a keg for his party. What better way to enjoy AquiloPils than with good friends, co-authors, and a whole ton of paleontologists? It was a crowd pleaser! To celebrate, I also drafted a logo for this beer, of a little Aquilops clutching a glass of the beer. This project was fun from start to finish!

Me (left) and the birthday boy, with our cups of AquiloPils (photo courtesy Matt Wedel). Check out Matt’s musings on our critter in the movies over at the SV-POW! blog.

AquiloPils

  • 9 lb. pilsner malt (Montana Craft Malting Co.)
  • 1 lb. flaked rice (Briess)
  • 2 oz. rice hulls
  • 0.5 tsp. BrewTanB, added to mash
  • 0.4 oz. Sorachi Ace hop pellets (9.7% alpha), 60 minute boil
  • 0.5 tsp. BrewTanB, 10 minute boil
  • 1 Whirlfloc tablet, 5 minute boil
  • 2 pkg. Novalager yeast (Lallemand)
  • 1 pkg. Biofine Clear

Target Parameters

  • 90 minute infusion mash at 146°, full volume mash, with 10 minute mash-out at 168°
  • 1.044 o.g., 1.004 f.g., 5.3% abv, 15 IBU, 3.5 SRM
  • Water profile built with RO water to hit 59 ppm Ca and 105 ppm Cl.

Procedure

  • I built the water up from scratch, using 7.25 gallons of RO water and 6 g of calcium chloride to hit my target water parameters.
  • I heated the strike water to 151°, added the grains, and also added 20 mL of 10% phosphoric acid, holding the mash at 146° for 90 minutes. Then, I raised the temperature to 168° for 10 minutes, before pulling the grains.
  • In total, I collected 6.5 gallons of runnings with a gravity of 1.040, for 72% mash efficiency.
  • I brought the kettle to a boil, adding hops and finings per the recipe.
  • After a 60 minute boil, I turned off the heat and chilled the wort to 70°, before transferring it to the fermenter. I chilled the beer the rest of the way to 50° in the fermentation chamber.
  • I brewed this beer on 15 March 2025, with a starting gravity of 1.049 – well above my target!
  • Fermentation started at 52°; I increased the temperature to 54° on 17 March, and 60° on 20 March. I cold crashed the beer to 33° on 26 March and held it there until I kegged the beer using a closed transfer on 19 April.
  • Final gravity was 1.004, for 5.9% abv.
  • On 15 May 2025, the beer was still fairly hazy, so I added a package of Biofine Clear. Within a day or two, haze had almost entirely dropped out, and within three weeks the beer was brilliantly clear.

Tasting

  • Appearance
    • Brilliantly clear, straw colored beer with thin white head of low persistence.
  • Aroma
    • Medium-light sweet malty aroma, no hop or yeast character to speak of.
  • Flavor
    • Medium malty character, low bitterness, a bit of that light red apple yeast character.
  • Mouthfeel
    • Medium-high carbonation, light body, dry and crisp finish.
  • Would I Brew This Again?
    • This is pretty close to what I envisioned! It hits the gimmick well and is also super drinkable. The batch yielded a little too high on starting gravity (I was just too efficient in the mash!), so it would be good to notch that back a touch. Otherwise, it’s a perfect beer. I might also try W34/70 for a future iteration, to get more of that apple-like American lager flavor. Finally, I could up the rice percentage some to around 20%, if I wanted a better match with “typical” American lager recipes.
  • Overall
    • 9/10

Mow the Damn Lawn, Farke

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I brewed this American lager recipe last summer, and thought I’d give it another go to close out the warm months here. The 2021 version is nearly identical, just with a small hop swap as well as water built (mostly) from scratch.

Mow the Damn Lawn, Farke

  • 8.5 lb. 2-row malt (Great Western, California Select)
  • 2 lb. flaked rice
  • 4 oz. rice hulls
  • 0.6 oz. Vanguard hop pellets (6.5% alpha), 60 minute boil
  • 1 tsp. BruTanB, 10 minute boil
  • 1 Whirlfloc tablet, 5 minute boil
  • 1 tsp. yeast nutrient (WLN1000), 5 minute boil
  • 2 pkg. Saflager Lager Yeast (W34/70)

Target Parameters

  • 1.046 s.g., 1.008 f.g., 5.0% abv, 14 IBU, 4 SRM
  • 148° full volume infusion mash, 75 minutes, with 10 minute mash-out at 168°
  • Water built from 6 gallons RO and 1.5 gallons Claremont tap water, to produce a water of 7 ppm Ca, 2 ppm Mg, 19 ppm Na, 10 ppm sulfate, 21 ppm Cl, 31 ppm bicarbonate, 26 ppm alkalinity; 19 ppm RA

Procedure

hand holding willi becher glass of yellow beer with white head
  • The night before brewing, I set in the water by mixing 1.5 gallon of tap water with 6 gallons of RO water and a quarter of a Campden tablet, to that it would all be ready to go in the morning.
  • I heated the strike water to 153°, and hit a mash temperature of 148°. I recirculated at this temperature for 75 minutes, noting that the top of the mash read at 147.5°; I was pretty happy with this.
  • After the mash, I heated to 168° for 10 minutes, and then pulled out the grain basket.
  • In total, I had 6.75 gallons of runnings with a gravity of 1.038, for 68% mash efficiency.
  • I brought the kettle to a boil, boiling for 30 minutes before adding the hops, in order to bring the gravity up a bit. Then, I boiled for another 60 minutes while adding hops and finings per the recipe.
  • After the full 90 minute boil, I chilled the wort to 75°, and transferred to the fermenter for the final chill to 48° in the fermentation chamber. Finally, I pitched the yeast directly and let it free rise to 52°.
  • I brewed the beer on 19 June 2021, fermenting at 52°. Starting gravity was 1.044.
  • I cold crashed the beer on 10 July 2021, and kegged it on 14 August 2021.
  • Final gravity was 1.009, which works out to 4.6% abv.
  • The beer was surprisingly hazy at the time of kegging, especially after over a month of lagering.
  • I tasted the beer on 17 August 2021, and it was an acetaldehyde bomb. Ugh. This was a surprise to me, because it had plenty of time to clean up (two months since brewing). I’m not sure why this was; maybe it hadn’t actually cleaned up because I skipped a diacetyl rest? I’ve gotten away without it before, though, and as mentioned it sat on the yeast for plenty of time. My other thought is that maybe if the airlock dried out a bit, this introduced some oxygen and created more acetaldehyde. In any case, I pulled the beer out to room temperature (~75°), and let it sit there for a few days, with occasional keg purges to outgas any unpleasantness, before re-chilling. It still had a decent bit of green apple when I tasted a week later, but it was much improved. After two more weeks, any acetaldehyde had faded to virtually nothing. In any case, a slight green apple quality is acceptable in the American lager style, so let’s just pretend that I meant to do this.

Tasting

  • Appearance
    • Very clear, nearly brilliantly so, with a light yellow color. It pours with a creamy and tall white head that subsides to a modestly persistent thin rim.
  • Aroma
    • Light malty sweetness with a very very slight green apple character (virtually imperceptible), and a crisp, faint hop spice note
  • Flavor
    • Low level of maltiness and light sweetness, and a moderately low and clean bitterness. As with the aroma, there is a very faint green apple character, which has faded considerably since the early days on tap. It is a very drinkable beer.
  • Mouthfeel
    • Light body, moderate carbonation, and slightly dry finish.
  • Would I brew this again?
    • This is a pretty good beer, which is fun as an experiment to see if I can pull off a light, high-adjunct beer. It’s certainly quite drinkable in decent quantity during a hot day, so I’ve hit that goal quite well. It’s not the most exciting beer ever, but then again that’s not what I was aiming for. I’m a bit disappointed by the heavy acetaldehyde in initial servings, and I don’t quite know what led to that. I suspect it was a combination of things, and will likely do a higher temperature fermentation rest on future batches.
  • Overall
    • 6.5/10

Schell’s Pils Clone

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It’s always lager season, and especially so during the warm opening days of fall here in SoCal. I’m continuing to explore the morphospace of pilsners, with my latest foray following a recipe in Craft Beer for the Homebrewer: Recipes from America’s Top Brewmasters. I was particularly interested by a clone recipe for a pilsner from Schell’s Brewing, based out of Minnesota. One notable thing about the provided recipe is that it used American 2-row instead of European pilsner malt. They’re not too far off each other in terms of color, so I thought it would be a neat test of malt character.

The recipe itself closely matches that in the book; my main adjustment was to modify the hop schedule slightly for amounts and time to account for the hops I had on hand.

Close-up of pilsner beer foam in conical glass

Schell’s Pils Clone

  • 10.5 lb. 2-row pale malt (Rahr)
  • 0.25 lb. Carapils malt (Briess)
  • 1.9 oz. Mt. Hood hop pellets (4.6% alpha), 60 minute boil
  • 1 Whirlfloc tablet, 10 minute boil
  • 1 tsp. Fermax yeast nutrient, 10 minute boil
  • 1.1 oz. Mt. Hood hop pellets (4.6% alpha), 5 minute boil
  • 1 oz. Sterling hop pellets (7.9% alpha), 5 minute boil
  • 1 pkg. Harvest liquid yeast (Imperial Yeast #L17), prepared in 1.5L starter
  • 1 oz. Sterling hop pellets (7.4% alpha), 7 day dry hop

Target Parameters

  • 1.050 o.g., 1.013 f.g., 4.8% abv, 38 IBU, 3 SRM
  • 60 minute infusion mash, 152°, batch sparge
  • Water built up from RO, to hit target water profile of 59 ppm Ca, 8 ppm Mg, 89 ppm SO4, 63 ppm Cl; RA=-47ppm

Procedure

  • I made a 1.5L starter a few days in advance, let it run for 48 hours, and then cold crashed it (and decanted the spent wort).
  • To create my brewing water, I added 3.3 g gypsum, 2.7 g epsom salt, and 4.2 g calcium chloride to 8.5 gallons of RO water.
  • I mashed in with 3.5 gallons of water at 162°, to hit a mash temperature of 152.2°. I added 7.5 mL of 88% lactic acid to the mash, to help hit a target pH of ~5.3.
  • After 50 minutes, I added 1.25 gallons of water at 185°, in order to raise the mash temperature o 156°. I let the mash sit for 10 more minutes, vorlaufed, and collected first runnings. Then, I added 3.75 gallons of water at 185°, let sit for 10 minutes, vorlaufed, and collected second runnings.
  • In total, I collected 6.9 gallons of wort with a gravity of 1.042, for 74% efficiency.
  • I brought the runnings to a boil, adding hops and other kettle additions per the schedule. After 60 minutes, I turned off the flame and chilled down as far as I could (~80°) before transferring.
  • I chilled the wort down to 57°, before pitching the yeast and continuing to chill down to 52°. I completed the fermentation at 52°.
  • A good krausen was built within 24 hours.
  • I brewed the beer on 11 August 2019.
  • On 18 August 2019, I raised the temperature of the beer to 56°.
  • On 21 August 2019, I raised the temperature of the beer to 66°.
  • I added the dry hops on 24 August 2019.
  • I cold crashed the beer to 33° on 29 August 2019.
  • I kegged the beer on 1 September 2019. Final gravity was 1.008 (via refractometer), for 5.5% abv.

IMG_20191009_171317

Tasting

  • Appearance
    • Pours with a thick, fine, frothy head, that is quite persistent. The beer itself is light yellow and fairly clear (but just a touch away from brilliant clarity).
  • Aroma
    • Light grainy aroma, with a nice spicy hop note alongside it. Very clean!
  • Flavor
    • Grainy and ever-so-slightly sweet malt profile, with a firm, clean, and slightly spicy bitterness. Balance is tilted modestly in the hoppy direction.
  • Mouthfeel
    • Crisp, with a slightly dry finish. Moderately high carbonation.
  • Would I brew this again?
    • YES! This is a really nice German-American pilsner, all the more interesting because I got such a nice malt flavor profile using American 2-row rather than European pilsner malt. The Rahr 2-row is pretty light (1.8 SRM), not too far from typical pilsner malt (Weyermann Barke pilsner is actually 1.9 SRM), so I guess it shouldn’t be too surprising, at least on the basis of color. I’m particularly pleased with the head retention on this beer; it pours with a beautiful foam that sticks around for quite awhile. If I had a little more patience, I would let it condition a bit longer to clarify to brilliant, but that’s pretty much the only (minor) flaw in this beer.
  • Overall
    • 9.5/10