This will be my fifth batch of Flanders Red from my original yeast cake. It will be pitched onto the cake previously used for
Flanders Red 1.4.1. This beer will be undergoing a primary fermentation with brewers yeast and lacto for a month prior to going onto the Roeselare cake. I'd really like to get this primary first approach down to a science as I think this pre-fermented beer would be better for topping off my existing batches as well as for blending purposes. It would also give me a bit more control of the amount of sugar going to the souring microbes if I could be confident about hitting a particular SG after primary. My first couple attempts fermented down a bit further than I was hoping (would like to see it at ~1.015 after primary). I am going to keep attempting this.
I tried a modified malt bill with
Flanders Red 2.1.1 that I am going to further tweak for this batch. I'm going with the cereal mash of Corn Grits again to try to get a starchier wort. This time I am going to do the cereal mash in my kettle while doing the mash so that I can be on hand to stir it and so that I don't make another mess of the kitchen. I am also going to increase the mash temperature to 175 F prior to adding the cereal mash to the main mash to try to prevent conversion of the corn starches. Once again, I am going to assume no gravity contribution from the cereal mash which I'm sure will not be the case. I am going to use rice hulls again as the corn grits are kind of a slimy gummy mess that could hurt the flow through the grain bed.
For the last batch I tried to approximate the malt complexity I'd been getting from the Munich and Vienna using Victory malt. From the few tastes I had of the wort it seemed a little too crackery with this in the mix. For this batch I've decided to go back to using a bit of Munich instead.
The malt bill, overall, has been cut back quite a bit. I'd been targeting an OG of 1.062 which, if I'd ever hit it, would have produced a beer of nearly 8% ABV given the super high attenuation I've been getting. This is a bit higher than I'd like. So, I'm going to try to bring this been in around 1.045. Additionally, I will be getting 5 of those gravity points from Maltodextrin which is a carbohydrate powder that yeast can not break down but the lactic acid bacteria can. This feels a bit like cheating so I may not make this a permanent part of my process. I was too curious to see what it would do to hold off on it though - will be very interesting to see how this impact the attenuation of the primary yeast.
I had planned on re-using the primary yeast from 1.4.1 but decided against it as it had the lacto and possibly some other microbes in it. I was worried that this could impact the attenuation of the primary. I picked up another Belgian yeast (Wyeast Abbey Ale 2) to do primary for this round. I am going to try hard to maintain this as a clean strain for later re-use.
I am also going to primary ferment a gallon of the batch with lacto as I did with
Flanders Red 1.4.2 (which I'd saved the lacto from). This lacto strain (Brevis) produces a wonderful fruity (apple juice like) sourness that I think is assertive enough for 1 of 6 gal to contribute a reasonable level of sourness to the overall batch. I will give this a couple weeks by itself before adding to the main batch. I really like this approach to the lacto souring as it seems like it will give a lot more control than you'd get by pitching the lacto into the main batch and then waiting a couple days to pitch the primary yeast. This also allows me to ferment the lacto up in the bedrooms where it's a bit warmer than the basement.
Finally, I am going to add more oak cubes to the beer when I transfer over to the Roeselare cake. This will up it to 2 oz of cubes. I have been soaking the cubes in Port wine for about 3 months now for this beer. The port wine has a nice sweetness than I think will compliment the beer nicely. I am going to continue to add oak over the next few batches with the goal of inoculating enough to perform the long term aging/souring without the Roeselare cake to more closely match the Rodenbach process. Probably want to have at least 6 oz of cubes for this so it's going to be a few more batches before I can try it.
Recipe Details
- Grain/Adjunct:
- 4 lbs 2 Row
- 3 lbs Dark Munich
- 12 oz Caramunich III
- 12 oz Aromatic Malt
- 12 oz Special B
- 12 oz Maltodextrin (Not Factored into Efficiency Calculations - 5 gravity points)
- Cereal Mash (Not Factored into Efficiency Calculations):
- 1 lb 8 oz Corn Grits
- 6 oz 2 Row
- Hops:
- Yeast:
- Wyeast 1762 Belgian Abbey II
- WLP 672 Lactobacillus Brevis (Second Pitch)
- Wyeast 3763 Roeselare Ale Blend (Fifth Pitch)
- Water:
- 10 gal Spring Water
- 5 gal tap water
- 1 tsp Calcium Chloride
- 1 tsp Gypsum
- Extras:
- 1 oz Oak Cubes (from previous batch)
- 1 oz Port Soaked Oak Cubes
- 8 oz Rice Hulls in Mash
Batch Details:
- Batch Size:
- Mash:
- Step 1: 160 F for 45 min (Target 160 F for 45 min)
- Step 2: Ramp up to 175 F over 20 min (Target Ramped up to 175 F in 15 min)
- Boil:
- Fermentation Temp:
- 60 F to 75 F (Ambient Basement Temps)
- Primary Duration:
- With Yeast and Lacto:
- With Roeselare:
- Secondary Duration:
Results:
- OG:
- 1.049 (Target 1.045 - with 5 points from Maltodextrin)
- Efficiency:
- 85% (Target 72% - Does not factor in the Cereal mash which I don't want converted)
- FG:
- Apparent Attenuation:
- ABV:
Brewing Notes:
- Cereal mashing was messy in the boil kettle. May be worth getting a 5 gal pot to use with my turkey fryer. This would probably help with the scorching a bit as well as the big pot had a lot of surface area with such a small volume.
- I am tired of my immersion chiller. It's in the way out in the garage and lifting it out of the wort sucks. I'm thinking a plate chiller should be my next purchase. This will, of course, create it's own extra work due to extra items to sanitize but I'm thinking it will be a net benefit.