Home Brew Forums > Home Brewing Beer > General Beer Discussion > Cutsom lab work for brewers
Reply
 
Thread Tools
Old 04-16-2013, 08:47 PM   #1
DAlexander
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2012
Location: Acampo, CA
Posts: 62
Liked 8 Times on 4 Posts

Default Cutsom lab work for brewers

If a smaller lab was willing to open its doors to homebrewers, what type of tests would you like to see available?

SRM
IBU
Diacytal
water profiles
ABV
???

I was talking with a lab tech about this and we were wondering what some of the popular tests would be for beers if hobby brewers really want to see the accuracy of their recipes and procedures.


DAlexander is offline
 
Reply With Quote
Old 04-16-2013, 11:48 PM   #2
daksin
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
daksin's Avatar
Recipes 
 
Join Date: Aug 2011
Location: San Diego, CA
Posts: 4,435
Liked 320 Times on 276 Posts
Likes Given: 346

Default

Not just diacetyl- you'll want the whole spectrum of off flavors (chlorphenol, ester, phenol, fusel, DMS, sulfur etc etc etc). Someone mentioned infection identification but that would be difficult to do. Quick PCR tests for common contaminants like lacto, pedio, brett, etc etc would be more doable, but lots of wild yeasts would be tough. Customers would probably have to purchase individual tests, or you could run a battery but it would be more expensive.

Hop growers might want hop analysis. %AA and %BA for a start, but maybe also oil content, humulone/cohumulone/adhumulone and myrcene content as well.


__________________
I can't be arsed to keep up this list of what's in the fermenters, but hey, check out the cool brewery I own!

twitter.com/2kidsbrewing .. facebook.com/2kidsbrewing .. 2kidsbrewing.com
daksin is offline
Uziyahu Likes This 
Reply With Quote
Old 04-17-2013, 03:11 AM   #3
whitehause
Feedback Score: 1 reviews
Recipes 
 
Join Date: Oct 2011
Location: Fleetwood, Pa
Posts: 1,123
Liked 147 Times on 106 Posts
Likes Given: 29

Default

I agree with what daksin said.

SRM and ABV are pretty easy to figure out on your own.

I think yeast purity, water profiles, and home growers hop AA would be big along with the off flavor producing elements.
Water profiles are easy for most to get locally, so the price would have to be very competitive.

I've seen kits that have a small tasting sample of diacety, chlorphenol, ester, phenol, fusel and dms in order to know exactly what that flavor is and tastes like.
__________________
Screw it, Lets brew it

Primary 1- BM's Cream of three crops.
Primary 2- Paleface Scalper
Primary 3- Monks Reward (Kreuzberg)
Kegged - Honey Badger, Heady topper clone 1, Indian Paleface Scalper
Bottled- Skeptical Dog winter Lager, Hell's Belgian, Old Dutch Hiefer Hefe,Aphlewein, Chocolate Thunder porter, Jacked up lantern
whitehause is offline
 
Reply With Quote
Old 04-25-2013, 01:26 AM   #4
ISUBrew79
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2008
Location: Iowa
Posts: 206
Liked 3 Times on 3 Posts
Likes Given: 1

Default

How about microbiological testing? There are selective growth media for the identification of Lactobacillus, Pediococcus, and other beer spoilage organisms as well as wild yeast present in yeast cultures or finished beer.
__________________
College Creek Brewing Company, est. 2008
Primary: Belma/Cascade Pale Ale, Cranberry Melomel
Secondary: None
Bottled: Imperial Pumpkin Ale, Founder's Breakfast Stout Clone

On Tap:
Keg 1: Belgian Table Beer
Keg 2: Belgian Tripel
ISUBrew79 is offline
 
Reply With Quote
Old 04-25-2013, 11:14 PM   #5
orangehero
HBT_SUPPORTER.png
Feedback Score: 3 reviews
 
orangehero's Avatar
Recipes 
 
Join Date: Apr 2010
Location: Northeast
Posts: 1,462
Liked 228 Times on 142 Posts
Likes Given: 316

Default

I can understand the use of lab analysis for quality control in a commercial brewery, but I just don't see any reason for a homebrewer to need these. At the homebrew scale, and even as the principal method on the commercial scale, the best test is observing and tasting the beer throughout the process. Those are the skills you need to develop and sending samples to a lab isn't going to help you.

Inexpensive hop analysis is a good idea that I think is already being offered.
orangehero is offline
 
Reply With Quote
Old 04-26-2013, 04:21 AM   #6
daksin
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
daksin's Avatar
Recipes 
 
Join Date: Aug 2011
Location: San Diego, CA
Posts: 4,435
Liked 320 Times on 276 Posts
Likes Given: 346

Default

If it's interesting and cheap, why not? If you're constantly plagued by an off flavor and can't pin it down, it'd be helpful to know. Also, it's interesting to know how your IBU calculations line up with the actual IBUs in the beer.
__________________
I can't be arsed to keep up this list of what's in the fermenters, but hey, check out the cool brewery I own!

twitter.com/2kidsbrewing .. facebook.com/2kidsbrewing .. 2kidsbrewing.com
daksin is offline
 
Reply With Quote
Old 04-26-2013, 04:36 AM   #7
mysteryshrimp
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2012
Location: Acworth, Georgia
Posts: 228
Liked 33 Times on 21 Posts
Likes Given: 141

Default

Water profiles.
IBU of finished beer.
Homegrown hop analysis.

I would definitely be interested in water sample testing. My county doesn't test salt levels, I have to assume that the next county over is identical. If the price is right, I'd send my supposed 120 IBU DIPA over to see how far below 100 it really is.
__________________
Primary: Too many sours to mention.
Aging: Mead, Flanders Red, Belgian Dark.
Serving: Too many to mention. Dry Cider, East Coast IPA and Old Ale are my current standards.
BJCP ID: F0785, Certified Judge
mysteryshrimp is offline
 
Reply With Quote
Old 04-27-2013, 01:05 AM   #8
adrock430
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2012
Location: Boston, MA
Posts: 173
Liked 4 Times on 4 Posts
Likes Given: 9

Default

Find a place that does liquid chromatography - mass spec...this would give you all the chemical info like IBUs, ABV, diacetyl, phenols, etc. if some reads it for you. I don't know how expensive this would be, or who does it, but I'd shoot for a nearby research college. One shouldn't be too far living in CA.
adrock430 is offline
 
Reply With Quote
Old 04-27-2013, 09:52 PM   #9
grathan
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2010
Location: Albany, NY
Posts: 2,252
Liked 145 Times on 114 Posts
Likes Given: 94

Default

Dissolved oxygen.
grathan is offline
 
Reply With Quote
Old 04-29-2013, 04:15 PM   #10
bierandbikes
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2011
Location: Stewart's Run Farm, near Fredericksburg, VA
Posts: 185
Liked 14 Times on 13 Posts
Likes Given: 2

Default

As a few others have eluded to, the real issue is cost. While it would be cool to see an analysis of our beers, it is not necessary for the home brewer. Unlike the big breweries, we are not trying to pump out tank after tank of identical beers. However, if the cost were low enough, then there would be interest. I don't know what that cost cutoff would need to be, but when you can make a 5 gallon batch for less than $30, you have to take that into account when deciding how much a home brewer wants to spend to see if his/her ABV or IBU calculations are accurate.

Hop AA% would be really interesting, but again, most of us are growing less than a dozen plants. If you have 3 different varieties, you need 3 separate tests. AND, theoretically you need to do this every year.

Update the forum if the lab is interested. This is a great place to get feedback. They could offer a basic test for a couple of bucks and then have extra tests if there is something specific that a brewer wants to test. Same with hop analysis.


__________________
Brew Pedaler Aleworks
bierandbikes is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Those that work M-F, how do you get your CO2? MBasile Bottling/Kegging 34 04-29-2013 02:41 AM
will this work? BrewScout Beginners Beer Brewing Forum 8 03-31-2012 09:57 PM
will these work in the uk dazer23866 Electric Brewing 4 12-05-2011 07:12 PM
Work not working leaving unable to work knotquiteawake General Chit Chat 11 09-15-2009 06:58 PM
Would this work? The Pale Horse Cider Forum 1 11-10-2008 03:10 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS