Show Posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.


Topics - mabrungard

Pages: [1] 2 3
1
Equipment and Software / Can't use Gmail to get Bru'n Water
« on: August 16, 2018, 11:54:46 PM »
Well, Gmail has finally pissed me off. Gmail now considers any attachment that contains Macros (self-executing code) to be a virus. Bru'n Water does employ Macros to operate. If you are a Bru'n Water supporter, you will have to provide a non-gmail address if you wish to have any future contact or updates from Bru'n Water. Send your new address to: mabrungard@hotmail.com   You do need to include the name and email address that you originally donated under in your message.

Sorry for the trouble. Gmail truly sucks!

2
Yeast and Fermentation / Yeast Cell Count, Diameter, and BioMass
« on: July 18, 2018, 05:41:01 PM »
Last night, I attended a seminar in Indy presented by one of the Omega Yeast founders, Lance Shaner. There was one aspect of the presentation that caught my attention. He contends that its not truly applicable to target Cell Count as our metric for yeast starters. He said that the diameters of various yeast variants differ substantially and the amount of mass that those cells contain, also varies. For example, he said that Weizen yeast has much larger diameter and cell mass than something like a Saison yeast.

He went on to state that yeast growth calculators aren't necessarily accurate at predicting starter cell counts due to the differing individual cell mass. However, he did say that their research shows that for a given starter size and gravity, the total biomass produced is relatively consistent...regardless of the cell mass differences between yeast variants. So you might get a far lower cell count when growing a Weizen starter compared to the same size Saison starter, but the sum of yeast mass in each starter is going to be quite similar.

That was surprising to me, but its not when you figure that the yeast are probably utilizing the wort and growing biomass at the same rate, but putting it in different places. One makes fewer, but bigger cells and another makes more numerous, but smaller cells. He did say that pitching rate calculators are flawed do to these factors, they are still reasonably valid for sizing starters.

The final aspect that surprised me was that it is the amount of yeast biomass added to your batch that matters, not cell count. That also translates to a volume of high-viability yeast slurry that should be added to your batch. When he was pinned down, Lance did say that a typical gravity 5-gallon batch would need about 50 mL of high-viability yeast slurry. As I recall, the old clear White Labs yeast tubes probably held about that much slurry. That sounds like an easy to remember guideline for how much yeast slurry we should really be pitching into our batches if you're repitching slurry. Overpitching or pitching directly on a yeast cake may not be best for fermentation.

Give this some thought!

3
Equipment and Software / Peripheral Kettle Intake
« on: March 25, 2018, 03:16:10 PM »
As we all should know, whirlpooling the wort at the end of boiling or chilling re-suspends trub into the wort and preferentially deposits it in a conic pile in the center of the kettle. Placing a wort intake at the periphery (edge) of the kettle will avoid more of the trub. Here are measures I take to help to maximize the recovery of clear wort while leaving trub undisturbed in the kettle.

The first element is to place a segment of slotted tubing around the periphery of the kettle. While you could make a ring of tubing around the entire kettle, I prefer to limit the intake zone to about 1/4 the kettle circumference so that I can tilt the kettle slightly to improve wort recovery. Slotting should be placed on the bottom side of the tubing.

https://drive.google.com/open?id=13SRoPh0tmvCCsB93NaASUW0lP5e8PYe4

The second element is to include a better filter to help separate trub from the wort. I place a length of stainless steel braid over the slotted tubing to improve that filtration.

https://drive.google.com/open?id=1d3OxQGSsvOhjqFIQleOsWn1PIB3sSoEO

The third element is to incorporate a substantial trub dam to contain more trub in the center of the kettle. The photo above shows the simple strip of aluminum sheet that is pop-riveted together to form a large ring that sits about an inch inside the kettle walls. As shown in the photo below, the tube and braid assembly fit between the kettle wall and the trub dam. While the picture above shows a ring that is only about a 1/2-inch tall, I've since created a new ring that is about an inch tall that works even better.

https://drive.google.com/open?id=1hHN2kTCsLd4pVCLfmJuwXL-yjC2GIzhl

I can attest that these measures work very effectively in keeping trub of almost any size out of the flow. I chill my wort with a plate chiller downstream of this wort intake and can report that I never have sediment in my chiller.

You've probably seen vendors with their pathetic, little trub dams or accessories for kettles. They'll never be as effective as this. Make a real difference and improvement to your wort handling.

Enjoy!

4
Equipment and Software / Bru'n Water files blocked by Gmail
« on: January 08, 2018, 10:09:34 PM »
This is an alert to all you Bru'n Water users that have upgraded to the Supporter's version or are thinking about it. If you use Gmail to communicate with either Paypal or Bru'n Water, any reply that is set to your Gmail account with the Bru'n Water program, WILL BE PLACED IN YOUR SPAM FOLDER.

That really shouldn't be a big deal, but Gmail comes with the label for your Spam folder TURNED OFF. You won't know when you recieve any spam. For most of us, that might be a good thing. But for those that want the Bru'n Water communications, you're out of luck.

The fix is easy:

1. Click on the 'Gear' symbol at the top right of your Gmail console
2. Click on 'Settings'
3. Click on the 'Label' tab at the top of Settings page
4. Set either the 'Spam' or 'All Mail' labels to SHOW, instead of HIDE
5. You're done.
6. You should see that there is now an extra directory on the side of your Gmail console.
7. When Gmail marks some Spam, you'll immediately see it in your Spam folder and you can decide if its something you want...like Bru'n Water.

5
Equipment and Software / Blichmann Pump
« on: May 13, 2017, 10:07:17 PM »
I just became aware of a new pump that Blichmann is coming out with. I saw a pre-production version at my LHBS and heard their staff's reviews after using it in their in-house system. It reportedly was developed in conjunction with March pumps and it does look and sound impressive.

From the pump specs, it is more powerful than the typical March or Chugger since it reportedly delivers up to 7 gpm and max's out at 21 ft of head. I seem to recall that my March 815 can deliver something like 5 gpm and it max's out at about 12 ft of head. So this new pump can move some wort. Interestingly, the SST head is held onto the motor with a tri-clover clamp and it includes one of Blichmann's needle valves for flow control. I see that it also includes a spring-loaded bleed port to allow you to quickly expel air from the pump volute.

The guys at my LHBS said the pump is almost scary quiet, so that is nice. But, I have to admit that the typical March or Chugger isn't that loud either.

I'm not in the market for a pump, but if I was, this would definitely be at the top of the list.

http://www.blichmannengineering.com/products/riptide-brewing-pump

6
Commercial Beer Reviews / Guinness Antwerpen Stout
« on: February 19, 2017, 04:40:08 PM »
I just tasted the Antwerpen Stout from Guinness at the Cincinnati Winterfest this weekend and can report that it is an outstanding beer. Having just had the Guinness Extra Stout a month ago, I recognized that the Antwerpen Stout amps up the gravity and the richness of the dark fruit flavor. I feel its well worth your investigation.

At that same event, they also had their Rye Pale Ale and its OK. Not bad, but nothing to seek out.

While I was writing this message, I visited the Guinness website and see that they have a bunch of beers that I haven't seen on the shelves or taps. After tasting the Antwerpen, I'll be more open to trying them.

Enjoy!

7
All Grain Brewing / Pumping Effects on Wort and Beer
« on: February 09, 2017, 02:59:14 PM »
I've been a RIMS brewer for almost my entire homebrewing duration, so wort pumping is a matter of fact for me. I've not been disappointed with the body and mouthfeel of my beers, but I wonder if pumping actually makes any difference to the finished product?

As you can imagine, sending wort through a pump is similar to putting it through a tornado. There are significant shear forces on the wort when it passes through the pump that could conceivably rip the body-building proteins in the wort apart.

My question is: Does anyone know if there is actually a difference between a pumped and non-pumped wort and beer? I don't believe there is.

8
All Grain Brewing / LODO Impact on Roast Flavor
« on: November 28, 2016, 04:53:58 PM »
With the interest in low DO brewing methods, an interesting finding is the method's effect on malt flavor. Generally, this is a positive result. However, there is anecdotal evidence that LODO may not provide a positive improvement in the flavor or perception of dark roasted grains in the grist.

In the interest of furthering this subject, I'm asking brewers to respond here with their observations of their resulting beer flavor perception when LODO methods are used on grists with perceptible roast grains. This will be more telling if you have brewed side by side batches or have used the same recipe with notable and differing results.

Thanks!

9
Yeast and Fermentation / Methyl anthranilate (Grape Ester)
« on: April 10, 2016, 04:59:55 PM »
Is anyone on the forum familiar with this ester and its formation in beer?

I recently brewed a Helles that had a significant corny DMS aroma and flavor when it was young. Through lagering, that corn has been replaced with a light concord grape flavor and aroma. I'm curious if that genesis was via the DMS?

I've noted that this grape ester shows up more often in German lager styles, but I'm not sure why. Maybe because they tend to be malt focused and not hop focused?

10
Commercial Beer Reviews / 3 Floyds Yum Yum
« on: April 04, 2015, 12:16:01 PM »
I had a glass of 3F's new Yum Yum APA last night. At first, when they brought over the glass, I was pissed because it was only a 12 oz glass. I figured there must be a reason, so I readied my taste buds.

Pure nirvana. An explosion of well-mannered and balanced hop flavor and aroma. The malt backbone was adequate to support the hopping. I don't know exactly what drives the cost of this beer, but its obviously the hopping. 3F's website says this is a blend of proprietary hops, so they seem to have something special. They call it juicy and I agree. At 5.5%, it is an APA, but in the fashion of the day, they call this a Session Ale. I'm assuming they are referring to a Session IPA since 5.5% is kind of high to be sessionable.

Very fine beer. At the end, I was pissed again, that glass was indeed too small since I ran out too quickly.

11
Equipment and Software / "Varnish" in Fermenter
« on: January 25, 2015, 06:52:56 PM »
I just noticed an interesting buildup in my stainless conical fermenter.

I thought I had been keeping my fermenter perfectly clean for over a decade, but I noticed prior to my last brew that it had a very light tint on the interior surface. Since I spent days polishing the interior of the fermenter when I bought it, I have always avoided hard scrubbing with scrubby pads. But I have always been thorough in scrubbing the surface with either my hand, thumbnail, or sponge to remove any sort of trub, yeast, or other deposits. It always looked clean and shiny.

So with some 60 or 70 batches fermented in that vessel, I happened to notice that there was a tint to the stainless surface. I used my thumbnail and was able to scrape it off...grudgingly. It was some sort of a transparent, tan coating that I guess could be termed "varnish".

I still didn't want to use a scrubby since that is known to create micro scratches in metal surfaces. So I tried a warm PBW soak. That helped a bit, but I'm pretty sure that it's ~110F temperature was not enough to really activate the solution. I then hooked up my RIMS and circulated the solution at 160F and it further loosened the layer. I could get more off with my nails. Ultimately, I pulled out a white scrubby and lightly scrubbed the surfaces to get all the varnish off.

It's clean now, but I have to wonder if critters may have been lurking in that microscopic varnish layer that may not have been knocked out with sanitizer? Fortunately, my prior beers have been good, but that question has to remain.

While this event hasn't diminished my avoidance of harsh scrubbing with a scrubby since its obvious to me that the micro scratches will eventually become filled with that varnish, I wonder if anyone else has experienced this?

The good news for me now is that I know that I need to perform a substantial PBW cleaning in order to remove something I can't even see, on a frequency a little greater than once in 60+ brews.   :)

12
All Grain Brewing / Sparging Water Volume
« on: January 03, 2015, 07:14:28 PM »
I've been a fly-sparger for 15 years and have been using ProMash all of that time. Prior to my move to my electric system, my mashing and sparging water volumes have always worked out well...meaning that the final runoff gravity was just reaching the low limit and I'm running out of sparging water. Now after almost 3 years with my electric system, I've come to the conclusion that I probably won't achieve that coordination again. I always have between 0.5 and 1 gallon of sparging water remaining when the runoff reaches the low limit. By the way, I stop runoff at about 3 brix (1.012) to avoid tannin extraction.

The good news is that my efficiency is very good (80% to 90%). The best I was obtaining with the old system was 82%. The bad news is that my pre-boil volume is too low and the starting gravity is therefore too high. It seems that my procedures are extracting most of the sugars early...leaving the grain bed devoid of sugars. I do use a slightly thin mash ratio of about 1.5 qts/lb, but that is not out of the typical range. I don't think that is a problem.

It seems that I need to plan on sparging a volume that takes me down to my runoff gravity limit and then take that remaining sparging water and adding it directly to the kettle to meet my pre-boil volume target. I haven't heard of anyone else doing this, but it seems like it's what I need to do.

Any comments?

13
Ingredients / Is Wet Hopping BS?
« on: September 17, 2014, 07:40:49 PM »
Tis the season to endure another round of wet-hopped beers. My experience with commercial wet-hopped beers is that they are rarely as well-mannered and flavorful as beers made with dried hops. This seems to be a fad that doesn't have much basis other than the green hops are available, so let's make a beer with them!.

When I think about it, if green hops were better for brewing, we would be using them year-round. With freezing technology, there is no problem in storing wet hops. My impression is that most of the wet-hopped beers tend to have a green, chlorophyl flavor accompanying the hop flavors. I don't find that pleasing. I think there is an advantage to drying hops and using them fresh in that form.

What do others think of wet-hopping? Or am I just full of BS?

14
Commercial Beer Reviews / Sun King Fistful of Hops
« on: August 27, 2014, 12:27:07 AM »
Well, I'm going to have to say that there may be two masterful breweries in Indiana now...3Floyds and Sun King. Sun King's Fistful of Hops IPA is a wonderfully flavorful hop bomb that still provides a drinkable balance. The current version includes a notable orange flavor to the hopping when the beer warms. Well worth searching for if you are in Indiana. I'm not sure that it's available out of state.

My hat is off to the brewery.

15
Ingredients / Homebrewing making a mark in the water supply community
« on: September 15, 2013, 12:53:47 AM »
Check this water report out.  Scroll to the last page.

http://www.ci.everett.wa.us/Get_PDF.aspx?pdfID=3845

Pages: [1] 2 3