Ss Brewing Technologies Giveaway!

Home Brew Forums > Home Brewing Beer > General Techniques > Consistency
Reply
 
LinkBack Thread Tools
Old 04-20-2014, 03:05 AM   #1
grathan
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2010
Location: Albany, NY
Posts: 1,737
Liked 105 Times on 78 Posts
Likes Given: 52

Default Consistency

I've never brewed the same recipe twice before. I wonder how close it would be to the first time if I did.

I wonder how many variables actually affect the beer substantially enough to perceive a difference.

Lets assume you have the following variables consistent:
sanitation
viable pitching yeast amount
Same exact ingredients in the same exact amounts
same exact equipment.

Do you think it would be possible to make a beer that wouldn't be almost identical? I don't mean by purposefully trying to make it different, I mean just by happenstance.

__________________
grathan is offline
 
Reply With Quote Quick reply to this message
Old 04-20-2014, 03:08 AM   #2
lotusworker
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
lotusworker's Avatar
Recipes 
 
Join Date: Dec 2010
Location: Raleigh, North Carolina
Posts: 128
Liked 8 Times on 7 Posts
Likes Given: 10

Default

The biggest one is the constant fermentation temps as that will be a big variable which will affect it the most.

__________________

"Now son, you don't want to drink beer. That's for Daddies, and kids with fake IDs." -Homer Simpson

Brewing: Nothing
Kegged: Belgian Wit, Summer Ale, & Rye IPA
On Deck: Nelson Sauvin IPA

lotusworker is offline
BigFloyd Likes This 
Reply With Quote Quick reply to this message
Old 04-20-2014, 03:14 AM   #3
grathan
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2010
Location: Albany, NY
Posts: 1,737
Liked 105 Times on 78 Posts
Likes Given: 52

Default

yeah good point. Even a few degrees difference can make a massive difference with some yeasts.

__________________
grathan is offline
 
Reply With Quote Quick reply to this message
Old 04-21-2014, 02:45 AM   #4
Cyclman
HBT_LIFETIMESUPPORTER.png
Feedback Score: 1 reviews
 
Cyclman's Avatar
Recipes 
 
Join Date: Jan 2013
Location: Aurora, CO
Posts: 4,208
Liked 381 Times on 333 Posts
Likes Given: 122

Default

Mashing Temps, brewing temps, water source. Even the biggest breweries blend batches to have a consistent end product. Consistency is maybe the biggest challenge in brewing.

__________________

Give a man a beer, waste an hour. Teach a man to brew, and waste a lifetime! Bill Owen quote

Join the Beacon Point (Aurora, CO) Brewclub on Facebook- casual, fun brewing, drinking, socializing!

Cyclman is offline
 
Reply With Quote Quick reply to this message
Old 04-22-2014, 08:45 AM   #5
grathan
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2010
Location: Albany, NY
Posts: 1,737
Liked 105 Times on 78 Posts
Likes Given: 52

Default

Wow, those all certainly could all impact flavor. I wonder if bigger breweries aren't more effected by things like yeast mutation and hop quality rather than process though.

__________________
grathan is offline
 
Reply With Quote Quick reply to this message
Old 04-22-2014, 11:18 AM   #6
Oginme
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Oginme's Avatar
Recipes 
 
Join Date: Apr 2013
Location: , NH
Posts: 397
Liked 29 Times on 28 Posts
Likes Given: 77

Default

For us small home brewers, I think process has a lot to contribute as well. Ambient temperatures, consistency of grain crush, timing of additions, rate of draining wort, flow rate if fly sparging or dwell time if batch sparging all contribute some changes (and I'm sure there are other process variables that I didn't list) which can add up in the end. I've repeated several recipes as exactly as I could and getting fairly good repetition in measured results. For the most part, I can pick out slight differences batch to batch. Some may be due to process, or the other variables you listed and some may be due to age of the beers when compared.

__________________
Oginme is offline
 
Reply With Quote Quick reply to this message
Old 04-22-2014, 09:36 PM   #7
grathan
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2010
Location: Albany, NY
Posts: 1,737
Liked 105 Times on 78 Posts
Likes Given: 52

Default

Wow good points. It's tough to quantify variables as being flavor-forming without any comparisons.

I noticed formations on my fermenting wort this time because of vorlauf time was considerably decreased.

Also my boil was inconsistent. I turned the burner down because I didn't like the noise it made and immediately noticed the surface lost its roll. Though probably still 212*F I wonder how much rolling effects coagulation and hop extraction as well as the reduced heat reducing Maillard Reactions.

Also I randomly switched to a 90 minute boil vs. 60 minute because I was using Pilsner malt Even though I've never had problems with DMS. But yet another inconsistency...

My Immersion chiller also kills my boil for like 10-15 minutes when I drop it in. This is with the reduced heat setting, but certainly effects my late hop additions.

I wonder if anyone on HBT brews exact clones of their own beers?

__________________
grathan is offline
 
Reply With Quote Quick reply to this message
Old 04-23-2014, 12:48 AM   #8
Oginme
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Oginme's Avatar
Recipes 
 
Join Date: Apr 2013
Location: , NH
Posts: 397
Liked 29 Times on 28 Posts
Likes Given: 77

Default

I noticed that my results become much more consistent when I switched to a 90-minute boil with first hop addition at 60 minutes. It made a big difference in nailing down my volumes, OG and bitterness consistently versus trying to add the hops just when the boil started.

__________________
Oginme is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
wpl001 consistency Frige Fermentation & Yeast 1 02-16-2013 01:01 PM
fermcap consistency? shoebag22 Fermentation & Yeast 8 08-09-2011 04:32 AM
Consistency in Taste bufordtjones Bottling/Kegging 1 08-25-2009 10:37 AM
No consistency Dude General Techniques 17 04-23-2007 03:02 PM