Tag Archives: fruit beer

Catharina Sour

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Image by Bigul Malayi, licensed under CC-CC0 1.0

The Southern California Homebrewing Festival is coming up! As usual, I can’t make it due to a work event, but I am sending a keg with the Horse Thieves. The “bragging rights” competition this year is tiki-/island-themed beer, so anything that it is tropical/tiki is fair game. Charles, one of our club members and owner of Pacific Brewing Supplies, used an open source machine learning build (“AI”) to analyze a whole ton of recipes and come up with some ideas for our club. One of them was a Catharina Sour, which intrigued me enough to brew it!

Part of the appeal for me was that this is a style I’ve never made previously. Originating in Brazil, the BJCP describes it as “a refreshing fruited sour wheat beer with a vibrant fruit character and a clean lactic acidity.” It is essentially a bright, highly fruited Berliner weisse.

The recipe from Charles was pretty straight-forward, and I made only the most minimal modifications for my equipment and ingredient availability. I kettle soured with Lallemand’s Wildbrew Sour Pitch, and used US-05 (with its famous peachy notes) to provide a subtle fruitiness to enhance the tropical fruit. I chose Amoretti Craft Puree for the base fruit additions, having had good success with it in some batches a few years back. At the suggestion of the recipe, I also used the TrueFruit product (essentially granulated fruit concentrate) to brighten things up in the keg.

Catharina Sour

  • 5 lb. Synergy Select Pilsen Malt (Briess)
  • 4 lb. white wheat malt
  • 0.5 tsp. BrewTanB, added to mash
  • 1 pkg. Wildbrew Sour Pitch (Lallemand), for kettle souring
  • 1.1 oz. Hallertauer whole hops (3.0% estimated alpha), from South Dakota
  • 0.5 tsp. BrewTanB, 10 minute boil
  • 0.5 tsp. WLN1000 yeast nutrient (White Labs)
  • 1 pkg. US-05 Safale American ale yeast (Fermentis)
  • 8 oz. (by weight) mango Amoretti Craft Puree, added to primary
  • 8 oz. (by weight) passionfruit Amoretti Craft Puree, added to primary
  • 1 oz. (by weight) TrueFruit passionfruit, added to keg
  • 0.67 oz. (by weight) TrueFruit mango, added to keg
  • 0.67 oz. (by weight) TrueLime, added to keg

Target Parameters

  • 60 minute infusion mash, 152°, full volume mash
  • 1.044 o.g., 1.009 f.g., 4.5% abv, 4 IBU, 3 SRM
  • Blend of neutralized tap water and RO water to hit 86 ppm Ca, 5 ppm Mg, 64 pm Na, 36 ppn SO4, 86 ppm Cl, 7 ppm bicarbonate, RA=-58.
  • 5.25 gallon batch

Procedure

  • I added 3.9 mL of 88% lactic acid to 5.5 gallons of tap water to remove the bicarbonates, and then added 2.5 gallons of RO water to further reduce the mineral content.
  • I heated the strike water to 157°, added the BrewTanB and grains, and then recirculated at 152° for 60 minutes. Next, I raised the temperature to 168° for a 10 minute mashout.
  • After pulling the grains at the end of the mash, I had 7.1 gallons of runnings with a gravity of 1.035, for 74% mash efficiency. I boiled the wort (without hops) for 5 minutes and then chilled it to 95° before adding 25 mL of 88% lactic acid to adjust the pH of the wort to ~4.2.
  • Before pitching the sour culture, I rehydrated it with 5 g of DME in 100 g of water. My previous experience with dry lacto cultures is that they can clump up, so rehydration seemed wise. Once this was done, I pitched the culture.
  • I did the inital brew on 8 March 2026.
  • Within my Foundry, I held the temperature at 100° for 48 hours, until it hit what tasted like a reasonable level of acidity.
  • I boiled the wort for 60 minutes, adding hops and BrewTanB per the recipe. Then, I chilled the wort down to 70° before pitching the yeast.
  • I pitched the US-05 on 10 March 2026. Around 6 gallons went into the fermenter, with a starting gravity of 1.040.
  • The beer was fermented at 68°. I added the craft puree on 15 March, and also moved the fermenter to ambient at that time.
  • I kegged the beer on 21 March 2026, using 3.15 oz. of corn sugar in the keg. I added the fruit powders directly at this time.
  • Because it was such a large batch, I had some beer left over and bottled it with two carbonation drops in a 22-oz. bottle. The bottle did not get the TrueFruit/TrueLime additions, so is just the “base” fruit style.
  • On 7 April 2026, I measured 16 psi in the keg at 68°, which is around 1.8 volumes of CO2. At this point, I moved the keg to the conditioning chamber, chilled to 34°, and used force carbonation to finish out the beer preparation.
Bottled version
Kegged version

Because I had both a bottled version (with no TrueFruit/TrueLime) and a kegged version (with the additions at kegging), I decided to write up my tasting notes separately.

Tasting – Bottled Version

  • Appearance
    • Light yellow, fairly hazy beer; it pours with a rich white head that subsides fairly quickly and leaves lacing on the glass.
  • Aroma
    • Lightly tart, lightly doughy, moderate tropical fruit aroma that accentuates mango.
  • Flavor
    • Moderately high level of clean lactic acidity; light doughy malt character; medium level of tropical fruit flavor, especially mango, with the passionfruit behind that.
  • Mouthfeel
    • Medium-high carbonation, light body, dry finish.
  • Would I Brew This Again?
    • Yes! This is an awesome sour, one that is complex with the fruit, but not in-your-face. The mango is a little more obvious than the passionfruit; a touch more of the latter would be nice. The fruit quality definitely gets more noticeable as the beer warms.
  • Overall
    • 9/10

Tasting – Kegged Version

  • Appearance
    • Modestly hazy, shimmery, pale yellow beer that pours with a surprisingly persistent white head, which leaves some lacing on the glass.
  • Aroma
    • Bright tropical fruit bouquet at a medium-high level; mango and passionfruit, absolutely! The aroma balance is slightly tilted towards passionfruit. Some lactic sourness comes through, too; light bread dough.
  • Flavor
    • As with the aroma, a bright and fresh tropical fruit flavor is prominent; lime is immediately recognizable, alongside passionfruit. The mango character is a little more subdued. The beer has a clean lactic acid sourness, and a slightly doughy malt character at a low level.
  • Mouthfeel
    • Light body, medium-high carbonation, slightly dry finish.
  • Would I Brew This Again?
    • WOW! The keg version is simply amazing, and the blend of fruit is close to perfection. I might notch back the lime just a touch (perhaps half the amount I used) so that it’s not quite as noticeable and more in a supporting role. The TrueFruit was an excellent addition, in particular helping the passionfruit to shine. This might be one of the most fun (and most enjoyable) brewing projects I’ve had in awhile.
    • Compared to the bottled version, the fruit quality is “better” on this one. Everything else is (as expected) fairly similar.
  • Overall
    • 9.5/10

Rated “PG” (for Pineapple Guava) 2026

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Our feijoa (pineapple guava) tree had a slack year in 2024-2025 (probably due to dry conditions), so I wasn’t able to gather any fruit. But, the tree produced fairly well towards the end of 2025, so it was the perfect time for a rebrew of my old favorite sour beer. The feijoa fruits weren’t quite as large this year, and were perhaps a bit riper when I picked them, so the overall quality is different from the first batch. That said, it still turned out as a great beer (even if a bit of extra work)!

Everything is pretty much the same this year as the previous version; there is a mix of pilsner malts, because I was getting to the end of my Pilsner Zero supply. With a smaller harvest of fruit, I opted for a 2.5 gallon instead of a 3 gallon recipe.

Rated “PG” (for Pineapple Guava) 2026

  • 1 lb. 12 oz red wheat malt (Briess)
  • 14 oz. Pilsner Zero malt (Viking)
  • 8 oz. Synergy Select Pilsen Malt (Briess)
  • 2 oz. rice hulls (added to mash)
  • 0.25 tsp. BrewTanB, added to mash
  • 0.25 tsp. BrewTanB, 10 minute boil
  • 1 oz. Saaz whole hops (South Dakota; est. 3.5% alpha), 5 minute boil
  • 0.5 tsp. yeast nutrient (WLN1000), 5 minute boil
  • 1 pkg. Wildbrew Philly Sour (Lallemand)
  • 2 lb. feijoa (pineapple guava) puree, added at end of fermentation

Target Parameters

  • 60 minute infusion mash, 152°, full volume mash
  • 1.031 o.g., 1.006 f.g., 3.2% abv, 5 IBU, 3 SRM
  • Claremont tap water, neutralized, to hit 120 ppm Ca, 7 ppm Mg, 89 ppm Na, 50 ppm SO4, 120 ppm Cl, 10 ppm bicarbonate, -81 RA
  • 2.5 gallon batch

Procedure

  • Starting with 3.75 gallons of tap water, I added a quarter of a Campden tablet to drop the chloramines, and then 2.65 mL of 88% lactic acid, to neutralize the bicarbonates.
  • I heated the water to 155°, before adding the grains, and holding at 152° for 60 minutes, with recirculation.
  • After the main mash, I raised the mash temperature to 168° and held it there for 10 minutes.
  • Once the mash was done, I pulled the grains. I had 3.4 gallons of runnings with a gravity of 1.025, for 72% mash efficiency.
  • I brought the runnings to a boil, and boiled for 60 minutes, adding hops and other ingredients per the recipe.
  • After the 60 minute boil, I chilled to 84°, transferred to the fermenter, pitched the yeast, and fermented at ambient. I wrapped a towel around the temperature to maintain temperature.
  • I brewed the beer on 18 February 2026; starting gravity was 1.033.
  • The beer was down to 70° by the morning of 19 February 2026, with active bubbling in the airlock. I put my fermentation heater next to the fermenter and wrapped the fermenter in a towel in order to keep the temperature up.
  • The fermenter was around 76° when I checked it on 22 February 2026.
  • I added the fruit puree on 22 February 2026. I had picked the feijoa at the end of December, skinned it, and then froze the pulp. After thawing, I pureed the pulp with an immersion blender, heated the puree it to between 160° and 165°, and then let it sit for 30 seconds. I added the pasteurized puree to the fermenter at this point, which raised the temperature to 86°. There was a gentle krausen on top when I opened the fermenter.
  • The fermenter sat at ambient, until I kegged the beer on 7 March 2026. I used 1.5 oz of corn sugar dissolved in water to start carbonation (and reduce oxygen).
  • Final gravity was 1.009, down from 1.033; this works out to 3.1% abv, pretty close to my initially estimated target.
  • After a few weeks, I moved the keg to the fermentation chamber and topped up the CO2 with forced carbonation.

Tasting

  • Appearance
    • Very hazy and straw-colored beer, with a surprisingly persistent white head (likely helped by the high level of carbonation).
  • Aroma
    • Highly tart, acidic aroma, with a medium level of tropical fruit; very ripe, almost like papaya, especially on the initial pour; as the beer warms, I pick up more guava, and a bit of apricot and pineapple.
  • Flavor
    • Very clean sour profile, with a lactic acid character; a light bread dough malt flavor. As the beer warms, a medium-low level of tropical fruit comes through, with well ripened pineapple as the dominant flavor. Minimal bitterness.
  • Mouthfeel
    • Highly carbonated, crisp, light-bodied beer; a wonderful effervescent character.
  • Would I Brew This Again?
    • This is a super amazing beer, made even more special by the fact that I picked the fruit in my yard. It is just about the perfect fruited sour; the aroma is a little more “ripe” than the previous version. The flavor is not as fruit-forward (hence the 9/10), but still nice. The Philly Sour strain works well for these kinds of beers; I’m definitely sold on it! Comparing with the previous version, the color is a little lighter; maybe that’s something about the fruit?
  • Overall
    • 9/10

Raspberry Belgian 2021

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According to my records, this is the fifth time I’ve made Raspberry Belgian. It is one of my favorite recipes, without a doubt. The process is a fair bit of work, and it’s not the cheapest thing to brew, but WOW, are the results worth it!

My approach to this has morphed considerably over the years, and there are inevitably some variations in ingredients and process. So, every time is different, even if they’re all more or less in the same flavor space.

As before, the key to this recipe is using fresh/frozen raspberries. Tons and tons of raspberries–4.5 pounds, to be precise. I used just frozen ones this time, which I thawed and pureed before adding to the fermenter. Canned purees just don’t “pop” in the same way. For souring, I tried out the Lactobacillus Blend from Omega Labs, which is what the local shop had on-hand. Past versions of the recipe used acidulated malt in the grist, which was a hold-over from the original “bacteria-free” version, and I decided to just ditch that because it was unnecessary.

Raspberry Belgian 2021

  • 6.5 lb. Viking Pilsner Zero Malt
  • 2.5 lb. white wheat malt (Great Western)
  • 1 lb. flaked wheat
  • 0.5 lb. Carapils malt (Briess)
  • 0.5 lb. rice hulls
  • 0.5 oz. Magnum hop pellets (10.1% alpha), 60 minute boil
  • 1 tsp. WLN1000 yeast nutrient (White Labs), 10 minute boil
  • 1 pkg. Belgian Wit Ale Yeast (WLP400), prepared in 1L vitality starter
  • 1 pkg. Lactobacillus Blend (Omega Labs OYL-605)
  • 72 oz. frozen raspberries, pureed

Target Parameters

  • 1.048 o.g., 1.012 f.g., 18 IBU, 4 SRM, 4.8% abv
  • 154° full-volume mash, 60 minutes
  • Overnight kettle sour
  • Claremont tap water, no adjustment

Procedure

  • Way back in May, I made a starter for Pannotia White IPA using WLP400, but it was suuuuper slow to kick off. Worrying that it was dead, I got some Whiteout (Imperial Yeast), but kept the WLP400 starter going just in case. After a day or two, it was off to the races, and so I harvested the results to save for a later brew–which turned out to be the raspberry brew!
  • I mashed in with 7.25 gallons of water at 160°, and held the mash at 154° for 60 minutes with recirculation. I added 7 mL of 88% lactic acid to adjust the mash pH. I raised the temperature to 168° for a 10 minute mash-out, and then removed the grain basket.
  • In total, I collected 6.25 gallons of runnings with a gravity of 1.038, for 61% mash efficiency. This is a bit low, but that seems to be the case for these adjunct-heavy beers (and my mill seems to be not quite tight enough, after inspection of equipment).
  • Next, I boiled the runnings for 5 minutes, before chilling down to 95°. I added 25 mL of 88% lactic acid, to get the pH down to 4.4, and then added the lacto culture. Because I’m using the Foundry, I just let the runnings in the kettle, and set it to maintain temperature at 90°. I did this step on 14 August 2021.
  • After 25 hours, the pH was down to 3.5, right in my target range. I called this perfect!
  • While getting the soured runnings ready, I made a SNS (shaken-not-stirred) starter for the harvested yeast culture.
  • I boiled the runnings, adding hops and yeast nutrients per the recipe. After 60 minutes, I chilled the wort, transferred to the fermenter, and then chilled down to 66° before pitching the yeast starter.
  • I started primary fermentation on 15 August 2021, holding at 66°.
  • On 19 August 2021, I added 72 oz. of pureed frozen raspberries, and raised the temperature to 68°.
  • On 22 August 2021, I brought the beer out to ambient, around 75° or so, to finish up.
  • I kegged the beer on 28 August 2021. At this point, it had a final gravity of 1.013, which works out to 4.0% abv. With the extra sugars from the fruit, actual abv might be a touch higher.

Tasting

  • Appearance
    • The beer is gorgeous! I pours with a pink, frothy, and somewhat persistent head. The beer itself is dark pink, and moderately (but not overly) hazy. I think it’s looking clearer than might be usual, because I’m using a floating dip tube. I wouldn’t mind a little extra haze, if it helped augment the mouthfeel and flavor.
  • Aroma
    • Raspberry is prominent, with a bit of tartness also.
  • Flavor
    • The beer is moderately sour, but not over the top. The sour character is clean (one person who tasted it described it as a sour patch kid–that’s a high compliment in my book!). Bitterness is perceived as low. The raspberry comes through very nicely. There might be a slight wheat flavor, but in general I don’t think the malt is terribly perceptible. I’m a bit surprised that the Belgian yeast character doesn’t come through more, either.
  • Mouthfeel
    • This beer has a light body and effervescent quality, with a tart, modestly sour, and dry finish.
  • Would I Brew This Again?
    • This is a wonderful beer! It’s incredibly drinkable, especially during warm weather. I wouldn’t mind a touch more malt character and a little bit more prominent Belgian yeast character…I would be curious to see if it’s genuinely no Belgian character, or if that is just being covered up by the raspberries. Perhaps I’ll try fermenting at a higher temperature next time, to bring out the phenols more prominently. Those are truly minor issues, and really just in the category of optional tweaks to consider.
  • Overall
    • 9/10

Raspberry Belgian 2020

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I’ve brewed this beer at least three or four times, and I keep coming back to it as one of my very favorite recipes. It’s crisp, it’s low alcohol, it’s flavorful, and it’s well out of my usual brewing styles. I wouldn’t want this year-round, but it sure is a nice treat every once in awhile!

deep pink beer in Belgian wit glass, held aloft against green tree leaves

My personal take on this recipe–which started out as a clone of Funkwerks Raspberry Provincial–has evolved since I first brewed it in 2017. Every batch is a bit different, especially in the souring strain and the type of raspberry puree added. It never fails to be a great beer.

Raspberry Belgian 2020

  • 4.75 lb. pilsner malt (Weyermann)
  • 2.5 lb. pale wheat malt (Weyermann)
  • 1.75 lb. acidulated malt (BestMalz)
  • 0.5 lb. Carapils malt
  • 0.5 lb. flaked oats
  • 0.5 lb. flaked wheat
  • 6 oz. rice hulls
  • 0.35 oz. Magnum hop pellets (13.2% alpha), 60 minute boil
  • 0.5 pkg. (~5 g) of Wildbrew Sour Pitch (Lallemand)
  • 1 pkg. Whiteout Belgian Wit Yeast (Imperial #B44)
  • 36 oz. raspberry puree

Target Parameters

  • 1.048 o.g., 1.013 f.g., 15 IBU, 3 SRM, 4.5% abv
  • 155° full-volume mash, 60 minutes
  • Overnight kettle sour
  • Claremont tap water, no adjustment

Procedure

  • I mashed in with ~8.5 gallons of water at 160°, to hit a 155° mash temperature target. After 60 minutes, I vorlaufed and collected the full volume of runnings.
  • In total, I collected 6.7 gallons of runnings with a gravity of 1.033. This was way below my target (and only 57% mash efficiency), so I added 0.75 lb. of extra light DME to bring the gravity up to 1.038.
  • I boiled the runnings for 10 minutes and then chilled to 115°. I added 1 tbs. of 88% lactic acid, to bring the pH down to ~4.4.
  • Once the kettle temp was down to 105°, I added 5 g of the Wildbrew Sour Pitch, stirred gently, and left it on a heating pad in a warm garage.
  • I started the souring process at around 10:30 am on 18 July 2020, and it was down to ~3.35 by the next morning. The sour level was right where I wanted it, when I sampled a little.
  • I boiled the beer for an hour, adding hops per the schedule as well as some yeast nutrient.
  • I chilled the wort and put it into my fermenter, bringing the temperature down the rest of the way in my fermentation chamber. I pitched the yeast, and let it ferment at 66°. The starting gravity was 1.046.
  • I pitched the yeast on 19 July 2020, and added fruit puree on 23 July 2020.
    • To make the puree, I took frozen raspberries (purchased fresh a few weeks prior, sorted, and frozen) and thawed them out. I had 72 ounces by mass, which was around 130 ounces by volume of whole raspberries. 12 ounces by weight should make around 6 ounces of puree by volume, so I ended up with around 36 ounces (a quart) of puree. To make the puree, I heated the raspberries in a double boiler, mashing them up. I heated the mixture to between 150° and 170°, with the bowl sitting in near-boiling water. I let it sit for 15 minutes and then chilled in an ice bath, before adding the puree to the fermenter.
  • I kegged the beer on 1 August 2020. Final gravity at that time was 1.020, for 3.3% abv; I wonder if the yeast hadn’t completely fermented out? I usually agitate the fermenter when I’m using the various Belgian wit strains, because they do tend to stall out without babysitting. Oh well…I figure that any final fermentation will hopefully wrap up in the keg.
  • I added 3.2 oz. of corn sugar boiled for ~2 minutes in 1 cup of water, and then sealed up the keg (adding a touch of pressure to make sure the lid was seated).
  • Carbonation level maxed out at around 24 psi at 72°, which is not terribly great as a level of carbonation for this style. That’s only 2.2 or so volumes of CO2, and I was aiming for 3.0 at least. I used my CO2 talk to top things up.
  • On 9 August 2020 (the same day as the tasting), I decarbonated a sample and measured gravity with both hydrometer and refractometer, getting a final gravity of 1.017. This works out to ~3.8% abv, and if I were to guess, around 4% abv when you factor in the sugars from the raspberry.

Tasting

deep pink beer in Belgian wit glass
  • Appearance
    • Right now (second day on tap for the keg), this beer has a gorgeous deep pink color, with a prominent haze. It pours with a frothy white head that subsides to a relatively continuous thin blanket.
  • Aroma
    • This beer smells like fresh raspberry. I get maybe a little bit of the citrusy Belgian wit yeast character behind that, but the raspberry is front and center here.
  • Flavor
    • What else? Raspberry! More seriously, the beer has a pleasant (but not over-the-top) tartness, with a berry and citrus character. The malt is pretty subdued, and largely overwhelmed by the fruit and sour notes. But, raspberry definitely dominates.
  • Mouthfeel
    • Crisp and light bodied, with a nice smooth finish. Carbonation is high, which gives a pleasant and spritzy character to the beer, but the heavy amount of suspended yeast and the malt bill keep it from being too thin.
  • Would I brew this again?
    • This is one of my very favorite summer beer recipes. It has evolved considerably from the original clone recipe, and it has further evolved from my initial few attempts. It’s such an interesting beer, and is a good reward for the above-average amount of effort and above-average ingredient cost. The only minor change I might make would be to ditch the acidulated malt–it’s a holdover from the original recipe, which used this malt alone to get the desired sour character.
  • Overall
    • 9/10

The Ones That Got Away…

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For a variety of reasons, I haven’t been able to blog about every single batch I brewed in 2018. Many of the ones that didn’t make the cut were repeat brewings of successful recipes. Because I’m not likely to get all of them with full blog posts at this stage, I’m giving myself semi-amnesty by listing them with brief comments.

  • Cerveza de Jamaica 1.1
    • This was a rebrew of the first version, which I really liked. Version 1.1 was modified very slightly to add a little more hibiscus and a little more orange peel, and the result was an incredibly tasty beer!
  • Double IPA / Hoppy Blonde Ale
    • This was an experiment with parti-gyle techniques, co-brewed with a friend. The double IPA ended up at around 7.8% abv, and was fairly tasty. The blonde ale rounded out at 4.6% abv, and was also pretty nice. The experiment was a lot of work on brew day, but a fun attempt.
  • Raspberry Belgian 2018
    • I rebrewed a house favorite recipe for a beer festival, and thus didn’t really get to taste the final result (sadly). Everything on the process was tasty, though, so I’ll be doing this one again too.
  • Bavarica Session IPA
    • This one was pretty disastrous! The flavors clashed horribly (never again will I use Munich malt in a session IPA), and I dumped most of the batch.
  • Grab Bag IPA
    • Basically to use up a bunch of ingredients. Nothing memorable here, although it was pretty drinkable.
  • Grapefruit Wheat Ale
    • I don’t have many notes on this, other than that I used Amoretti grapefruit craft puree for some of the flavoring.