Showing posts with label no-sparge. Show all posts
Showing posts with label no-sparge. Show all posts

Wednesday, 7 November 2012

Brewing a Southern English Brown - no-sparge method

I would say that one of my biggest dilemmas as a homebrewer is finding the time to brew all of the beers that I'd like to brew. Aside from all of the new beer styles out there, along with the numerous tried-and-true recipes available in books, from other homebrewers, and on the internet, there's also a lot of recipes that I've done myself that I really enjoyed and would love to brew again, exactly as before. And yet another group of beers: the styles I've brewed before, and would like to try again with some tweaking to the previous recipe.

All you can really do is find a balance that works for you. I usually do new recipes that I haven't tried before, and sometimes I'll fit in a style where I try to improve a previous attempt (like my Twenty Dollar Blonde). This can be pretty enjoyable, as it's really a great way to increase your knowledge of homebrewing ingredients and methods, along with basic recipe-formulation. Two years ago I brewed a Southern English Brown, a malty-sweet, medium-bodied, low-ABV, smooth session ale. I'm pretty low on sessionable homebrews at the moment, so it seemed like a good time to tackle the style again.

While I generally liked how the beer turned out the first time, I don't think I was a huge fan of what the Special Roast grain added to it, and would have liked the body and carbonation to be a bit higher. Here are the basic changes I made to the beer this time around:

- Completely cut out the Special Roast.
- Decreased the Crystal 80 L and 120 L, and added Crystal 40 L to make up the difference.
- Increased the amount of Pale Chocolate malt.
- Added a bit of Amber Malt for flavor and darkening purposes.
- Mashed at a slightly-higher temp for (hopefully) more body (155 F vs. 153 F the first time).
- Changed the yeast from Wyeast 1968 London ESB to Wyeast 1028 London Ale (mostly on a whim).
- When bottling, I'll likely aim for a carbonation of around 1.8-2 vol CO2 (vs. the 1.5 for my first SEB).

After reading up on and posting on the subject, I also decided to try the no-sparge method. Since many claim this approach gives a richer and more-intense malt flavor, I figured a SEB would be a good style to try it on. I went with Strong's suggested method, where you increase your grist by 33%, mash and mash-out as usual, then make up the remaining boil volume by simply pouring water into the boil kettle. I assumed 80% efficiency on BeerSmith and multiplied my grain amounts by 1.33, and luckily only missed my target OG by one point.

I still have one bottle of my first SEB on hand. It's almost two years old now, but I'd still like to compare the beers when this current batch has been bottled. With a high mash-temp, the no-sparge method, and 35% of the grist coming from specialty malts, I'm hoping this beer will come through with more malty-sweetness and a fuller body than my first attempt.

I should also note that my brew day came about a little short-notice, and it happened to be Learn to Homebrew Day. Unfortunately, it was too last-minute to get some friends who have been curious about homebrewing in on it... but luckily my mother was visiting, and was more than happy to assist!

Recipe targets: (5.5 gallons): OG 1.036, FG 1.010, IBU 14, SRM 22.5, ABV 3.5%

Grains:
64.3% Maris Otter
10.7% Pale Chocolate malt
7.1% Crystal 40 L
7.1% Crystal 80 L
7.1% Crystal 120 L
3.7% Amber malt

Hops:
East Kent Goldings - 28 g (3.7% AA) @ 60 min

Misc.:
1/2 tsp yeast nutrient @ 15 min
1/2 tab Irish moss @ 5 min

Yeast: Wyeast 1028 London Ale (PD Oct 6/12, with a 750 mL starter)

Water: Fredericton city water, carbon-filtered

- Brewed Nov 3rd, 2012, with my mother. 60-minute saccharification rest with 13.8 L of water for a mash temp of 155 F. Mashed-out with 4.85 L of boiling water, resulting temp low at 163 F. Let rest for another 10 minutes, then vorlaufed 3-4 L and drained into kettle. Filled kettle with another ~4 gallons of filtered-water, to a final pre-boil volume of 6.75 gallons.

- SG 1.029 (target 1.030). 60-minute boil. Began chilling at flameout; took about 30 minutes to get to 64 F. Poured into BB; OG 1.035. Pitched yeast at 65 F, aerating by shaking well for several minutes before and after.

4/11/12 - In AM, airlock bubbling two times per second, temp 68 F. Some beer in airlock, but krausen has already settled back.

5/11/12 - In AM, activity virtually over, maybe bubbling q 10-15 seconds, krausen gone completely. Temp 68 F. Moved the BB into a separate room the next room, with the ambient temp set at 70 F.

20/11/12 - FG high at 1.014.

21/11/12 - Bottled with 67 g table sugar, aiming for 1.8 vol CO2 for 5 gallons, with max temp of 68 F reached.

22/1/13 - Tasting notes. Very malty and sweet, and extremely sessionable at 2.6% ABV, but I'm disappointed with the thin mouthfeel.

Wednesday, 31 October 2012

No-sparge Brewing - A simple approach to more malt flavor?

For homebrewers, the sparging portion of the brew day (where you add water to your grain bed after draining the wort from your mash, to rinse remaining sugars out of the grain) usually comes down to two options: batch sparging and fly sparging. Batch sparging - the more popular option - involves adding all of the sparge water at once (or in two portions, if your mash tun can't hold it all), stirring well, and letting it sit for 5-10 minutes before vorlaufing and draining the wort into your boil kettle. Fly sparging, on the other hand, requires sparge water to be added at a continuous rate, while simultaneously draining into the boil kettle. This results in a slightly-increased efficiency, but obviously involves more time (approximately an hour).

A technique that seems to be growing in popularity eliminates the sparge from the process... conveniently enough, it's called no-sparge brewing! It's pretty straight-forward... you mash as normal (with or without a mash-out), vorlauf and drain the first-runnings into the boil kettle. Instead of sparging, you then make up the remaining volume by adding brewing liquor (a fancy name for water used for brewing) directly into the kettle. This is the method suggested by Gordon Strong in his book, "Brewing Better Beer".

Why do this? Apparently, it results in a richer and more-intense malt flavor, with less harshness compared to other methods, according to Strong; he also mentions that the resulting beer is also a bit deeper in color, with lower acidity. This may not be a technique you'd use for a hop-forward beer, such as an American IPA, but for malt-forward beers, such as Scotch Ales, it sounds like something worth trying.

One thing to keep in mind here is that with this method your efficiency will obviously take a big drop, which means that no-sparge brewing is more expensive. Since you're adding water to your first runnings to get up to your boil volume, as compared to lower-gravity second runnings from a sparge, you would have to use more grain than normal for your mash. Strong suggests measuring the gravity and volume of your first runnings, which you can then use to calculate your efficiency for future no-sparge brews. This basically means your first attempt will be a bit of a guinea pig-approach. As for this first attempt, Strong writes that a 1/3-increase in your grist is a good place to start.

A slightly different no-sparge method is suggested by John Palmer, another very well-respected and well-read homebrewer. Palmer's approach involves adding the water that you would normally use for the sparge (roughly 1.5 times the water used in the mash) into the mashtun at the end of the mash. The full amount in the tun is then drained into the kettle, and should equal your target boil volume. This method has the benefit of requiring less grain then Strong's approach (approximately 25% more than the standard grain bill, instead of Strong's 33%). However, the disadvantage is that your mashtun would obviously have to be large enough to hold the entire amount of brewing liquor and grain; maybe not a concern for small (lower-ABV) beers, but could easily cause trouble with bigger, or even moderate-strength beers for those of us with 10-gallon mash tuns. You would also have to calculate the temperature of the additional water to add, so that you don't exceed 170 F, which may lead to leeching of tannins into the wort. For Palmer's full article (and some handy calculations you can complete to make things easier), check it out here at the Brew Your Own site.

I've never personally tried the no-sparge method, but I've been considering it for awhile. My next planned brew day (which should be within the week) is going to be a second attempt at the Southern English Brown style (recipe and tasting of my first attempt here). A low-gravity, malt-forward beer, I thought this style may benefit from a brewing method that's supposed to increase malt flavor and intensity. I already have my recipe planned out; I'll likely follow Strong's method and multiply all the grain amounts by 1.33, and hope that I get relatively close to my target OG.