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Messages - hopfenundmalz

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3271
All Grain Brewing / Re: Late Water Adjustment
« on: March 05, 2014, 05:06:45 PM »
Oh and the pH sample was not room temp but the device claims to auto temp correct. It is recently calibrated but I wouldn't swear by it's accuracy.
PH samples are evaluated at room temperature. Autocorrection compensates for the meters error, not changes in the sample with temperature. The probe will last much longer if you measure at cool temps.

Ah! I definitely misunderstood the ATC function then.. that would put it closer to 5.2 then


Actually maybe it was right, just saw this sentence on the calculator:
"This calculator attempts to correct the reading of a pH meter that does not internally account for temperature. If your pH meter features automatic temperature compensation (ATC) or the ability to "dial-in" temperature, it is already internally performing this correction."

Then again 152 may be too high for it to work effectively.

Two things go on with temperature, the meters accuracy. The sample will change. Do you think the meter is made  just for wort, or is it made for any sample that will change with temperature at different reaction rates WRT temperature?

I measure at room temperature, even though my meter has temperature compensation.

3272
All Grain Brewing / Re: Late Water Adjustment
« on: March 05, 2014, 12:57:31 PM »
Oh and the pH sample was not room temp but the device claims to auto temp correct. It is recently calibrated but I wouldn't swear by it's accuracy.
PH samples are evaluated at room temperature. Autocorrection compensates for the meters error, not changes in the sample with temperature. The probe will last much longer if you measure at cool temps.


3273
General Homebrew Discussion / Re: Bias in BJCP judging?
« on: March 04, 2014, 08:59:24 PM »
I decided to take Alewyfe's suggestion to heart.   It's definitely easier to throw stones than it is step in and attempt to make a difference.  I took and passed the BJCP Entrance Exam today.  Now, I just need to pass the BJCP Beer Judging Exam within the next year.
Excellent. +1

3274
Events / Re: CYA in Grand Rapids.
« on: March 04, 2014, 09:45:19 AM »
I've registered and made my hotel reservations.

Hotel?  I haven't gotten that email yet.  I'm sure it will be here soon. 
I'm thinking he has the inside track, being on the GC and everything.

Yes he does. Along with the speakers, they get some priority.

3275
Kegging and Bottling / Re: Kegs without gas
« on: March 04, 2014, 08:05:40 AM »
Won't the beer eventually absorb the co2 in the headspace causing the pressure on the lid to drop? It seems like it is possible you could lose the seal.  I would check them every once in a while, or just add a little co2 every once in a while.

I go back and hit them with CO2 again, eventually they get carbonated to proper levels.


3276
Yeast and Fermentation / Re: Increase finial beer PH?
« on: March 03, 2014, 07:52:26 PM »
You can dissolve some baking soda in RO water and add too a glass of beer. measure it all, so you can set it up. 

3277
The Pub / Re: !@#$ weather!
« on: March 03, 2014, 07:47:46 PM »
Another sub freezing day as mentioned above. 2 years ago we had a week + of 80F + weather. Then we had freezing weather that killed the apples and tart cherry crops. I want a gradual warm up this year.

3278
Events / Re: CYA in Grand Rapids.
« on: March 03, 2014, 05:46:47 PM »
Just got my e-mail. No worries.

3279
Side question...how often do you suppose people just pour a commercial beer into a bottle and submit?
Someone who knows about O2 exposure would not pour from one bottle into another bottle.

3280
The Pub / Re: !@#$ weather!
« on: March 03, 2014, 04:05:00 PM »
High was maybe 16F, low was -3 this morning. There was not a cloud in the sky, the sun was bright.

3281
Ingredients / Re: Pellet Hops - Vacuum Sealed bag or jar?
« on: March 03, 2014, 02:34:50 PM »
Don't know about apples but avocado stays fresh vacuum sealed in a food saver bag. I don't know about vacuum sealed in a jar but I bet it wouldn't.

okay so i'm game - will get an avocado, put a quarter in a jar and another quarter in a bag and see which oxidizes first.  (I'm eating the other half, in case you were wondering.0

should I freeze or just refrigerate the samples?

I think the answer is going to be indefinite. These methods are both proven to eliminate oxygen from foods. I found a steak in the back of the freezer when I moved. It had been in there for over two years.... Still looked like the day I put it in there. I would guess you're going to forget about the avocado experiment in a few months and rediscover it in a decade and find a nice green avocado in both the jar and bag.... You'll then make a sandwich lol
The local name chef says freezers are great, but they are not time machines. I think you could find a difference after a few more years.

3282
Events / Re: CYA in Grand Rapids.
« on: March 03, 2014, 02:24:03 PM »
I'm guessing you didn't register together (i.e. as your guest)?

Still waiting on my email.
Customer service # for altitude tickets is 866-461-6556 if you still haven't herd from them.
I am registered and have not heard. I am not going to panic. Weren't the e-mails to go out over a few days? Edit - it said you will be notified by no later than March 4, which is tomorrow.

3283
Ingredients / Re: Pellet Hops - Vacuum Sealed bag or jar?
« on: March 03, 2014, 02:04:45 PM »
Don't know about apples but avocado stays fresh vacuum sealed in a food saver bag. I don't know about vacuum sealed in a jar but I bet it wouldn't.

okay so i'm game - will get an avocado, put a quarter in a jar and another quarter in a bag and see which oxidizes first.  (I'm eating the other half, in case you were wondering.0

should I freeze or just refrigerate the samples?
Paul, do it like you would for hops, so that would be freeze correct? If you want a faster experiment then in the fridge, faster yet would be room temp. I would want to know the time frame in the freezer.

3284
General Homebrew Discussion / Re: Bias in BJCP judging?
« on: March 03, 2014, 01:00:45 PM »
From what I witnessed today, I can honestly say that it is difficult for BCJP judges remain unbiased through an entire flight.  The lead judge has a huge amount of control on the final score of a beer, and his/her biases do impact a beer's final score.  For example, a lead judge with whom I worked in one flight definitely had a bias against beers that were bottled from a soda keg.   I witnessed another table score every beer in 8C lower than every beer in 9C (both styles were grouped into the same flight).  That situation is statistically impossible without bias.

How many 8Cs were there and how many 9Cs were there. Probably not many if the categories were combined. I think you are taking some pretty egregious liberties with the word "impossible".

I do agree there are a lot false positives on acetaldehyde. I do not think this is at all limited to the BJCP. Budweiser is the perfect example of this. It does not have above threshold acetaldehyde and yet most people who know the word acetaldehyde think it does because the word is overassociated with apple aroma.

The observation about relative scoring of 8C and 9C beers strikes me as typical lack of intuition about probabilities combined with hyperbole and best and data mining at worse. If you go into a situation with the intention of observing something that validates your beliefs, you probably will.

It is often stated as fact that Bud has acetaldehyde in its aroma. As you state, it has levels below threshold.
Mitch Steele and others have stated that the Bud yeast has high levels of apple esters, which causes confusion. Go to the paragraph with the Acetaldehyde heading.
http://hoptripper.com/what-is-quality/

3285
All Grain Brewing / Re: 100% Vienna
« on: March 03, 2014, 09:57:25 AM »
Works well for a Vienna Lager.

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