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Brew Day! Steinpilz Gose

Dried porcini mushrooms, salt , hops (Willamette), and acidulated malt.

Dried porcini mushrooms, salt , hops (Willamette), and acidulated malt.

This has the potential to be really good, if I get it right…but it may sound pretty gross. I’ve brewed a beer today in a German style that is relatively obscure, but making a big comeback. The style is called “Gose” and is pronounced “goe-zuh”. Rather than go into a lengthy description, here’s a link that covers the history and details very well:

http://www.germanbeerinstitute.com/Gose.html

If you just want the brief version, it’s a beer made from barley and wheat malts and has a slightly sour and salty taste, usually with coriander. No, that’s not the most appealing description; but it really is quite good. Very refreshing. Every drink makes you want to take another! So, here’s where I push the limits even more: mushrooms! Instead of coriander, I’m flavoring my gose with dried porcini mushrooms. In German, porcinis are known by the name “steinpilz”, so, my beer is Steinpilz Gose. Stay with me now…the slightly salty/sour flavor, I believe, will go well with a savory pairing like the earthy flavors of the dried porcinis. I did a little tasting ahead of time…lighter beer with  few drops of porcini “tea” added. Actually, it was interesting and tasty! The trick will be getting the balance right. I want an earthy background note…not an aggressive flavor that would readily be identified as mushroom.

There are a few ways that I have read about to achieve the savory/sour component. Traditionally, lacto bacillus is used at some point (which varies, depending on who you ask). Another way is to create a sour mash ahead of your brew day…a little involved for my skill and equipment profile. And the lacto can be tricky, too. I settled for the use of acidulated malt.

I brew using a method referred to as “BIAB”, “Brew In A Bag”. The “mash-in” step is pretty standard…the milled wheat and barley malts are brought up to 149F and held there for 60 minutes.

Wrapped in a blanket and a "survivior" blanket to hold mash temperature.

Wrapped in a blanket and a “survivior” blanket to hold mash temperature.

Instead of draining the grains and going on to the boil, however, the acidulated malt is added and the temperature held at 149F for an additional 45 minutes. The reason for doing this is that the acid in the acidulated malt could inhibit saccharification (the conversion of starches to sugars. After the second mash step, the brew proceeds as normal.

Getting the water amount right has been a little tricky for me, but I wound up with 5-3/4 gallons of wort, after the boil. The original gravity is substantially higher than the target, though…1.054 instead of 1.045. Not a huge deal…more alcohol, but I just wonder why? Was I supposed drain and remove the first round of grain and just mash the acidulated malt? (As opposed to adding the acidulated malt to the existing grains and mashing ALL of them for the additional 45 minutes.)

Anyway, chilled the wort, aerated it,

Aerating with an oxygen "stone".

Aerating with an oxygen “stone”.

and pitched the German Ale/ Kolsh yeast. There’s not a lot of headspace in the carboy…I’ll have a blow-off tube ready, just in case.

About 5-3/4 gallons in primary fermentation.

About 5-3/4 gallons in primary fermentation.

When it’s done, I think a friend of mine is going to keg half of the batch to see how that compares to bottling. I’ve had an issue with overcarbonation that I can’t seem to figure out. My beer hits an optimum point and then, another month or more, and they start to get overcarbed. I’m looking forward to seeing how that “gose”! (Sorry.)

Update 2/22/15: Had to install the blow-off tube this morning. I guess those yeasties are happy!

Blow-off tube...yeast is chowing down!

Blow-off tube…yeast is chowing down!

 

 

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Brew Day! Yooper’s Oatmeal Stout

"The Con"

“The Con”

I prepared yesterday by purchasing my ingredients, getting my propane tank refilled, and buying 7 bags of ice.  The first thing I did was activate the “smack pack” of yeast that I used in this batch. It’s recommended to do so, 3 hours in advance of pitching. I’m brewing Yooper’s Oatmeal Stout, a recipe highly rated by several brewers and created by a brewer and moderator at the Home Brew Talk website. The recipe can be found at:   http://www.homebrewtalk.com/f68/yoopers-oatmeal-stout-210376/

The yeast is Wyeast British Ale II (#1335) and my batch is dated Dec 10th, so it’s very fresh!

Wyeast British Ale II (#1335)

Wyeast British Ale II (#1335)

It is supposed to supply 100 billion cells. The next step was setting up “The Con”. Basically, a table, a chair, the propane, burner, strike water and all the supplies/equipment…and a cup of coffee.

My local home brew supply shop was able to pretty closely duplicate the ingredients for me. I used 10 oz of Thomas Faucette Pale Chocolate Malt in place of the “Crisp”, Bairds 70-80L for the Caramel/Crystal Malt 80L, and Breiss for the 350 SRM Chocolate Malt. I also upped my Maris Otter to 8 lbs to satisfy my recipe builder program’s efficiency number estimate. (Brewer’s Friend) One other thing: I split my hops into 1 oz at 60 minutes and 1 oz at 30 minutes. Brewer’s friend estimated the IBU’s would be too high if I did 2 oz at 60 minutes.

For the process, I used the Brew in a Bag (BIAB) method that I have be doing since early last Spring. I heated my water to 159F and added my grains. I stirred to break up all the dry balls. My poor long plastic spoon needs to be replaced by a mash paddle! (Santa?) I turned off the burner and wrapped the pot with a blanket and a “space blanket” to try to maintain the temperature.

Wrapped for temperature retention.

Wrapped for temperature retention.

After 15 minutes, I checked the temperature and it had dropped to 154F. I gave the mash a burner boost, but overshot it up to 162F…rats!

Steeping grains, BIAB.

Steeping grains, BIAB.

I stirred constantly for a few minutes, but the temp wasn’t dropping very fast, so I added approx. 24oz of cold Culligan bottled water. I had the mash temp back down to just above the target 156F with 25 minutes to go in the mash. I wrapped it all back up again and it finished right on target. I hope the variation didn’t hurt too much.

I “tea bag” dunked & drained the grains a couple of times.

Tea bag dunk and drain.

Tea bag dunk and drain.

I also do a “modified sparge” that I have pictured in my journal before…I missed taking a photo this time. Basically, it’s a bottling bucket and tubing set up on a tall recycle container and I drain the water, in this case 1 gallon water at 167F, over the grains. The idea is to rinse additional sugars from the grains. Then I made sure the grains were well drained and squeezed out as best as I could, without burning myself. (I later added the grains to my compost container…I still have some in the freezer for making doggie treats.)

I checked the pre-boil specific gravity with my refractometer and it was 1.041…on target. I transferred the wort to the bottling bucket to measure the volume. It was right to the rim, which is 7 gallons.

measuring the pre-boil wort in a bottling bucket.

measuring the pre-boil wort in a bottling bucket.

I poured the wort back into the brew pot and re-lit the burner.

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The boil was good…added 1oz of Willamette hops pellets at 60 minutes got a vigorous boil going.

IMG_20141221_141450364

I missed my 30 minute hop (also 1oz Willamette )addition by 5 minutes, but it shouldn’t be a big deal. Post boil SG was 1.066 amd the volume looked a little low, so I added 1/2 gallon cold Culligan bottled water and immersed the brew pot into an ice water bath.

Ice water bath to chill.

Ice water bath to chill.

I used 6 bags of ice and managed to get the temperature down to 72F in less than 25 minutes. A copper coiled wort chiller would be nice, though. (Uh…Santa?!) I checked the OG with both a hydrometer and refractometer. The hydrometer sample was 69F and the reading was 1.055. The refractometer was 1.056. After correcting the hydrometer reading for the sample temperature, the readings agreed at 1.056. I transferred the wort to a bottling bucket for primary fermentation and aerated it with oxygen for two minutes…

Hydrometer sample and oxygen stone aerator.

Hydrometer sample and oxygen stone aerator.

…and then pitched the yeast and sealed the lid.  The volume in the bucket appears to be about 6-1/2 gallons and is close enough to the top that I decided to go ahead and set up a blow-off tube, just in case. Now we wait for the yeast to start partying! According to the estimates, I’m almost dead-on the numbers. I should finish within about .05 of the ABV percentage projection.

Wort aerated and yeast pitched.

Wort aerated and yeast pitched.

When primary fermentation is done, I plan to split the wort and use 2 gallons to make a gingerbread version. Need to research those additions. I do plan to include some freshly grated ginger root. It really made a difference in my Scottish Samhain Pumpkin Ale, evidently. I had some guys at the local home brew shop taste it and the one I think has the most experience picked up on it right away. I assume the other componants will be ground ginger, ground cinnamon, vanilla (bean or extract?) … maybe some molasses? Not too much, though. It is fermentable and I found that a small amount really made a nice difference in a cider that I did earlier this year. Okay…updates as needed to follow!

Update: As of the next morning, there was no noticable activity. I sanitized around the lid and opened just enough that I heard some fizziness. I resealed the lid. By a few hours later, I could hear a regular chugging in the overflow liquid. So…things are good!

 

 

 

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Day 162 Brew Day! McQuinn’s Robust Porter

Becoming a porter.

Becoming a porter.

I got this recipe from my LHBS (Local Home Brew Shop) as a recipe of the month at 1/2 price! It came as a pumpkin porter, but since I already have a Scottish pumpkin ale in the works, I decided to “de-pumpkin-ni-fie” the recipe, add a little maltodextrin and just make a Robust Porter. The name McQuinn comes from my paternal grandmother’s maiden name…and it sounds good for a porter!

I’m trying to input my recipes and brewing sessions into Brewer’s Friend online, but they include some technical stuff that I’m not into yet. They also do not account for things like sugars or fermentables that aren’t part of the “mash” or grain steep. (I’m doing BIAB–brew in a bag–all grain brewing).

All set to brew, BIAB style.

All set to brew, BIAB style.

So, when going from end of mash specific gravity reading, to pre-boil, to end of boil, the calculations show my conversion of grain to sugar and mash efficiency to be over 100% I’m also getting confused on water volume, grain absorbtion, boil off rate, etc. I start with 6 gallons in the kettle to mash, I know the grain absorbs some and the calculations have a standard default. Then I do what I’m calling a modified “sparge” where I drain heated water over the grains to hopefully wash out some more sugars from the grains…so, I’m adding about 2 gallons back.

My "modified sparge" set-up. Hey...it seems to work!

My “modified sparge” set-up. Hey…it seems to work!

Starting at 6 gallons and adding 2 gallons, minus what the grains absorbed, should leave me with about 7 gallons, but I swear I had 8 for the start of my boil. Had to keep the boil slow for most of the hour, because of the volume. Then I wound up with a slam full fermentation bucket.

Pitching the yeast in a "slam full" bucket of aerated wort.

Pitching the yeast in a “slam full” bucket of aerated wort.

I had to actually pull out a gallon to process separately, after I pitched the yeast. I used an oxygen tank with an aeration stone to aerate the wort for two minutes. I’m using Mangrove Jack’s British Ale Yeast. I was supposed to have 5.5 gallons after the boil.

The other thing that throws me off on all-grain brewing is the amount of trub. If you want a nice clear beer, you rack maybe 5.25 gallons off of 6 gallons and the rack again to 4-1/2 for bottling. I don’t care too much about getting a higher alcohol by volume (ABV) so much as I was a good beer and I want my 5 gallons! Ah well. C’est la biere!

So, I keep trying to tweak the brewing program and make notes that explain discrepancies, but it can be confusing. The main thing is that the actual brewing went well…except the temperature dropped in the mash at one point and I fired the burner to boost it and I over-shot from the 153 target, up to 157F. I stirred constantly for over 15 minutes to get it back down. Temperature control in the mash is the bane of my beer making! I’m not sure how it would do in an accurately judged competition, but my stuff still seems to come out pretty well, so I guess it’s okay. At the end of the brew, the color looks good and the OG reading is spot-on at 1.063 with an anticipated ABV of 6.32%.

Chilling the boiled wort in an ice bath...maybe a copper coil chiller for Christmas?

Chilling the boiled wort in an ice bath…maybe a copper coil chiller for Christmas?

Despite the brewing program confusion and water volume weirdness, this should be a pretty decent porter…and I have an extra gallon or so to experiment with. I’m using blow off tubes, since this is a dark beer and the volume is high.

Hit my numbers and still had more that I could fit in the fermentation bucket.

Hit my numbers and still had more that I could fit in the fermentation bucket.

I may wind up combining them at secondary and then dividing them again at bottling time and add cold brewed coffee to one half or one quarter.

If anyone would like the details of the recipe, I am happy to share…let’s see how it turns out, though!

Update: 10/6/14   The porter has been chugging away all day!

Update: 10/8/14   It has only been a couple of days since brewing and the porter has already gone through a quick chugging fermentation period and by yesterday afternoon, had already slowed substantially. I think I might go ahead and switch from blow off tubes to regular airlocks. I don’t know if this is normal for Mangrove Jack’s British Ale Yeast…I have to assume so.

Day 3 after brewing, small jug...action substantially slowed.

Day 3 after brewing, small jug…action substantially slowed.

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