This post is long overdue, but needed to be written. The weekend immediately following Lambic #1, I prepped a second wort for a sour pitch. I had an ECY20 pitch sitting in the fridge that needed to be put to work.

I made a starter several days before, as the yeast had been refrigerated for 2 months. The starter took off right away, and had a much funkier (barnyard) smell than the ECY01 did. This would prove to carry over to the primary fermentation as well.

After some serious waffling and consulting, I decided to brew a darker wort than the first lambic, and also to give it a little more food. I still followed the turbid mash technique, and used a good bit of unmalted wheat. What I’m hoping for is a wort profile similar to an Oud Bruin, but with a much more complex flavor profile due to the microorganism cocktail from Easy Coast Yeast.

I filled my brew kettle to the rim as with the previous batch, and there was so much wort that I actually needed to boil it down some before I could add all the second runnings. Partly why I got such a high efficiency, but also makes for a really long boil (and uses a lot of propane).

Recipe: 2012 Dark Lambic

Recipe Overview

Wort Volume Before Boil: 9.00 US gals
Volume At Pitching: 5.50 US gals
Final Batch Volume: 5.02 US gals
Expected Pre-Boil Gravity: 1.045 SG
Expected OG: 1.074 SG
Expected FG: 1.021 SG
Expected ABV: 7.1 %
Expected ABW: 5.5 %
Expected IBU (using Daniels): 24.4
Expected Color: 14.4 SRM
Mash Efficiency: 90.0 %
Boil Duration: 180.0 mins
Fermentation Temperature: 68 degF

Fermentables
UK Pale Ale Malt 7lb 0oz (56.6 %) In Mash/Steeped
UK Unmalted Soft White Wheat 3lb 0oz (24.2 %) In Mash/Steeped
UK Munich Malt 1lb 0oz (8.1 %) In Mash/Steeped
UK Light Crystal 8.00 oz (4.0 %) In Mash/Steeped
UK Dark Crystal 8.00 oz (4.0 %) In Mash/Steeped
Caramel Munich Malt 4.00 oz (2.0 %) In Mash/Steeped
German Chocolate Wheat Malt 2.00 oz (1.0 %) In Mash/Steeped

Hops
UK Challenger (2.7 % alpha) 2.40 oz Loose Whole Hops used All Of Boil

Other Ingredients

Yeast: ECY20 – Bug County 2011

Mash Schedule
Mash Type: Turbid Mash

Notes:

The primary fermentation happened fairly quickly, and there’s now some lingering bubbles on the surface, along with a very barnyard-y smell from the airlock. Time to put it away and forget about it for a good, long while. I will be adding oak in a couple of months, but there’s really no rush on that at all.

Last weekend, on MLKJr day, I brewed my first lambic. Technically it was a pseudo-lambic (or pLambic) because I pitched a culture rather than letting nature inoculate the wort.

There are many ways to get a souring culture, one of the most common is to buy a bottle of lambic beer that isn’t pasturized, and grow up a culture from the bottle dregs. I went a different route, largely due to the overwhelming popularity of the results. I bought a pitch from East Coast Yeast of Al’s BugFarm 5 (the 2011 variant) and made a starter.

Making a pLambic isn’t necessarally super hard, you can do a regular infusion mash and just pitch a mixed culture to make a sour beer, but after reading Wild Brews and nagging Michael Tonsmeire. for advice on a number of occasions leading up to brewday, I decided to make it in as traditional a manner as possible, which most importantly includes a turbid mash.

If you want to know all there is to know about a turbid mash, I’d recommend you read Michael Tonsmeire’s article, and then proceed to Wild Brews. In a nutshell though, it’s a specific mash process that leaves a significant portion of the starches from your cereal grains as they are, which sets them aside to be food for the non-brewer’s yeast to tear apart and eat over the 1-3 year fermentation cycle. A traditional mash breaks them down into simpler sugars, so that brewer’s yeast can easily convert them to alcohol and other by-products.

OK. So, I was a little anxious about the turbid mash, because it was a deviation from the process that I know so well, so I referred to Michael Tonsmeire’s website, Wild Brews, and a third article by the Cult of the Biohazard Lambic Brewers in order to make myself a spreadsheet, outlining the various infusions and runoffs. I was able to move through these steps on brewday fairly flawlessly, with the exception that there’s one step towards the end, where it would be handy to have a third pot and second burner. Oh well, minor delay. If you want to know what steps I followed, read Michael Tonsmeire’s article, he has the same steps all laid out with photos.

The boil is where this really becomes a drag. Due to the high volume of water used in the mash process, you end up with a 9-10 gallon pre-boil volume, which can take a really long time to boil down. I have a Bayou Country propane burner, and it took me about 4 hours to get to my final volume.

Hop selection is also of concern when making a pLambic — you don’t want to use high-alpha hops for bittering, even if you only use enough to hit your 20 or so IBUs — you want to use low-alpha hops that have ideally been aged a few years to have even less bittering power. I used 4 year old Challenger hops, that I calculated to be at 2.7%AA. And as the books say, yes, they do smell like cheesy, smelly feet. I put them in the boil early to make sure that I blasted out all the smell and flavor.

Fermentation was fairly mellow, and it seemed to finish it’s primary phase in 4 days. The krausen has now fallen, and I’m sure the secondary microorganisms are now taking over the show. I’ll post some followup photos here as things change, I know it’s going to be a long process.

Recipe: 2012 Lambic #1
Style: 17D-Sour Ale-Straight (Unblended) Lambic

Wort Volume Before Boil: 10.50 US gals
Wort Volume After Boil: 6.25 US gals
Volume Transferred: 5.50 US gals
Expected Pre-Boil Gravity: 1.032 SG
Expected OG: 1.053 SG
Expected FG: 1.015 SG
Expected ABV: 5.0 %
Expected IBU (using Daniels): 19.2
Expected Color: 3.9 SRM
Mash Efficiency: 98.0 %

Fermentables
UK Pale Ale Malt 6lb 12oz (71.1 %) In Mash/Steeped
US Flaked Soft Red Wheat 2lb 12oz (28.9 %) In Mash/Steeped

Hops
UK Challenger (2.7 % alpha) 2.00 oz Loose Whole Hops used All Of Boil

Yeast: East Coast Yeast ECY01 – BugFarm 5

Mash Type: Turbid Mash