BIAB Series – Mosaic SMaSH Ale

Home brewing plans take time to come to be. Maybe in 2015 I will learn to execute quicker. The thoughts for the SMaSH beers as a part of the BIAB Series were put forth in July!

Better late than never – some plans never see the light of day.

Saturday night I had the time to brew in a bag (BIAB) and use one variety of hops throughout the boil. I have two more to do which I should get done between now and Thanksgiving.

Brewing one gallon batches using the BIAB method brought my brew session time down considerably. From heating up my mash water to cleaning up afterward, I was done in 3 hours.

I brewed right on my stove top for the first time in years. It was nice to not have to deal with the elements outside and the extra equipment. Everything was right there in my kitchen – what a concept!

With nearly 2 gallons in my pot, it took no time at all to get up to my mash temperature and hold it there for an hour with the grain in the bag.

The recipe was a modification of the Mosaic SMaSH one I wrote up earlier in the year but what we’re trying to learn has stayed the same. We want to learn more about this variety’s flavor and aroma.

I am using just one ounce of hops – I put in a quarter of an ounce at the start of the boil, another quarter with 15 minutes to go, and another at flame out. The last quarter will be added with a few days left to go in the fermentation.

I did this schedule with for an experimental Sorachi Ace hops wheat beer last year and it worked well to get a full profile of the hops.

Here’s some photos of the session:

So Mosaic is done – El Dorado is next – and then Equinox will be last. Tasting videos will follow once the beers are ready.

Brew On!

Passion Fruit Flavor in Hops

This weekend, the plan is to get some of the one gallon, SMaSH hop explorations underway. These are the hawt new varieties that we have wanted to learn more about and brewing up small batches is a low-risk way to get that knowledge. If I were to brew five gallon batches and I don’t like the hop, I may be in the position of being stuck with a lot of beer I don’t want to drink. The one gallon batch presents a small yield of beer that may not be enjoyable and also keeps the costs low.

The hot hops that I am going to brew with are:

I also have a Down Under IPA on the calendar too. This recipe has a large amount of AU and NZ hops in them. One of the descriptors about the flavor and aroma of these hops that kept coming up was passion fruit.

I first saw it in the description of Simcoe hops. Back then, I was ignorant of what the fruit tasted like. I think I had it in some juice at some point but it was mixed with other flavors.

The Pursuit of Training Your Taste Buds

Beyond training to be a beer judge, it’s good to know what things taste like that are being used to describe beer flavors. Keeping a mind that is open to learn and is always in the pursuit of gaining knowledge led me to buy a passion fruit at the grocery store.

When I brought it home, I had to look online how to eat it. From what I found, I learn that it’s all about scooping the pulp out of the skin and slurping it up.

Here’s some photos of the first tasting:

The fruit is easy to cut open and the pulp was easy to spoon out. A few tastes and I got a good understanding of the flavors. The fruit is pretty tart, it’s got the lemon taste without the lemon scent. There are some notes of melon in there, mostly in the aroma. If you were to take a mild honeydew aroma and match it with some tart lemon flavors, you would have a passion fruit. I can see how this fruit would be used as a way to describe how a hop would smell and taste. It has a very bright tartness that if there is no citrus elements in the finished beer’s hop profile, then you would use passion fruit to describe it.

Let me see if I can commit this flavor to memory and pull it out later when I am tasting beer.

Brew on!

Acetaldehyde Off Flavor Tasting In Home Brewed Beer

I recently brewed up an English Best Bitter. I enjoy these session style pale ales quite a bit. English bitters in general have plenty of malt character balanced by earthly slightly spicy English hops. My favorite is the classic East Kent Goldings. Brewing English beers is fairly straightforward the trickiest part is managing the fermentation. English ale yeasts are well know for a couple off flavors if not treated right. And that’s what we discovered when we tasted my latest brew.

This beer has a subtle but noticeable acetaldehyde character. Namely it comes across as an apple quality. At lower levels acetaldehyde may seem like another fruity ester. Esters are actually a pleasant and welcomed flavor common to English ale yeasts.

So where did this acetaldehyde flavor come from. Well production of acetaldehyde is a normal part of the fermentation life cycle of all yeasts, not unique to just English strains. Normally at the end of fermentation yeast will re-absorb acetaldehyde and convert it to ethanol. They metabolize it as a carbon energy source after the sugars are all consumed. However this takes some time.

In my case, I think the garage was starting to chill down as late fall started to transition into pre-winter like temps. English ale yeast is notoriously finicky to changes in temperature. Especially a drop in temperature. If the yeast sense a drop in temperature they begin to flocculate. English yeast strain are normally the highest flocculators of most brewers yeasts. This creates a situation where the lower temp signals a time to go dormant, flocculation happens and you end up with either incomplete fermentation or a lack of cleanup.

I suspect that’s what happened here. I wasn’t using active temp control and my yeast flocculated out too soon leaving me with some unused acetaldehyde. Thankfully I didn’t get a double disaster with some diacetyl as well! To prevent this in the future, or in your own beers, I would ferment cool for the first three days then I’d start ramping the temp two degrees or so a day until I got it to 72F. Then I’d hold the beer there for another 7 days or so. Of course this changes somewhat strain to strain,wort to wort, and recipe to recipe.

Brew Stand Build Lessons Learned

The brew stand build is basically complete. I thought about painting it but that’s a waste of time. I’d rather be brewing than waiting for paint to dry. This week John is a little curious about the project so we hit the high points of the build out and discuss some of the lessons I learned along the way.

Aside from cutting and grinding metal for the fabrication, the primary hurdle was to handle the plumbing of the gas lines. I used 1/2 inch black pipe for all the hard lines. Essentially running a supply line along the back of the stand with T-fittings for each burner. I connect to each burner using coated flexible stainless steel supply line. The same stuff you’d use to connect to a standard gas stove.

I don’t know a whole lot about plumbing gas and maintaining an adequate supply pressure for all three burners. I suspect that if I had used a different diameter piping maybe all three burners would be able to run simultaneously at full bore…but they don’t I can get two burners screaming with flame, but when I light the third I just don’t think there is enough pressure coming from the tank to get it done. Not a big deal really as there is rarely a time when you’d want to run three burners. Let alone at full bore. My center burner is for the mash tun with I only fire intermittently to maintain mash temps.

The most important thing to remember when plumbing for any type of burner is the proper orifice. Natural gas and propane but come at different pressures and you have to have the right orifice to match the fuel and pressure source. An orifice is a small fitting that has a small home bored through it. The gas meets the orifice and is pressed through there creating a jet like effect on the otherside. This is how the fuel pulls in air from the “carbuerator” like flapper valve on the back of the burner. If you don’t use the right sized orifice for your supply pressure you just get a dirty yellow burn and not the classic clean blue flame you are looking for.

Lastly, I wish the stand was a little taller. I cut the original aquarium stand down to half its height. While its perfect for brewing there isn’t enough room to safely mount my pump beneath it. I am afraid there is too much heat from the burners and the pump may get damaged.

So for now I plan to build a small portable pump and chiller stand that I can move around separately. Which might make things easier for cleaning than if it was all mounted under the stand. Only time will tell.

Stay tuned for a future video of the stand in operation while brewing. You’ll quickly see what I mean about burner usage and the pump situation.

Any thoughts or questions on brew stands? Just pass them along!

Oatmeal Stout Kit Brew Day

Nothing Wrong with Brewing Kits

I have been getting into brewing kits lately.  There’s something fun about taking out some of the decisions out of picking out ingredients and just brewing what comes out of the box after it arrives at your door.

The last one I brewed was the witbier that was written about a few months ago.  In the pursuit of brewing a great stout, I got an Oatmeal Stout kit from Northern Brewer.

I like taking the kits and modifying them a bit – maybe my mind isn’t ready to shut down all decisions of what goes into the beer recipe.

Just a Bit Modified

Let me know if you agree with me: The hop variety that came with the kit was Glacier.  Now I was all about these hops six years ago but for an oatmeal stout I thought a tried-and-true English variety would be better.  Thankfully, I had some UK Kent Goldings on hand and substituted them in.

The grains come all mixed in together so you’d better hope that the measurements have been done correctly in the warehouse.

What?  I trust them.

The oats did come separately, which was nice because I wanted to toast some of the oats to draw out more flavors from them. I put them in the oven while I was heating up the water for the mash and they were timed perfectly.  The toasted oats came out of the stove and went right into the mash tun right before the hot liquor did.

The wort coming out of the tun was black and oily.

Oatmeal Stout Wort

Foamy Boil and Following the Tips

The boil was pretty foamy. I found that I had to keep on boilover watch throughout the hour. There was one tense situation where my son had run off with my mash spoon but I quickly recovered it so that I could give the wort a stir and keep the foam from tumbling over the side of the pot. I guess oats bring more protein to the brew.

The spent grains were a speckled sight to see.

Oatmeal Stout Spent Grains

The beer cooled down pretty quickly – thank you cold ground water – and I was ready to pitch the yeast. I went with two packets of Safale S-04 (proofed) and followed Mike’s Oatmeal Stout Home Brewing Tips for the fermentation temperature schedule. In short, the temperatures start low and end high to reach that the attenuation that I want.

As always, we will taste this one when it is ready.

Brew On, Peeps!