Search found 9 matches

by JSGilbert
Thu Aug 19, 2004 8:50 am
Forum: Brewing Problems, Emergencies, Help!
Topic: Make-up Water?
Replies: 3
Views: 6796

Re: Make-up Water?

I added about one gallon of water to make-up 5 gallons. The specific gravity was 1.02 before I added the water and remained the same after. How could the SG be 1.02 before AND after you added 1 gallon of water to 4 gallons of beer? Your hydrometer reading should have gone down for sure. I think tha...
by JSGilbert
Mon Aug 16, 2004 7:33 pm
Forum: Brewing Problems, Emergencies, Help!
Topic: Airlock sucking in air?
Replies: 4
Views: 7702

Your beer will most likely be fine. It just depends on the liquid that was in your airlock. Did you boil the water that you used in your airlock? If the water in the airlock wasn't bacteria free then you could have a problem; however, at the end of fermentation, the alcohol and hops (depending on yo...
by JSGilbert
Thu Aug 05, 2004 9:14 am
Forum: Equipment
Topic: Chillers, Immersion vs. Counterflow
Replies: 6
Views: 13654

I have been told by many that if you want a counterflow chiller, you are going to also need a pump. Brewers have said that at least 15 feet of head would be necessary to get the wort to flow through the chiller (depends on chiller). Therefore, consider the price of a good quality pump and add it to ...
by JSGilbert
Tue Aug 03, 2004 12:41 pm
Forum: Brewing Problems, Emergencies, Help!
Topic: Fermentation hasn't started
Replies: 2
Views: 5546

What kind of yeast are you using? variety and form (dry, liq.)

If dry, did you rehydrate?

If liquid, did you use a starter?

What was your OG?
by JSGilbert
Tue Aug 03, 2004 10:13 am
Forum: Brewing Science
Topic: Thermodynamics anyone?
Replies: 12
Views: 33414

Jeff,

Yes, your methods appear to be valid. I agree with not worrying about the absolute output of your heat source, it makes everything much easier.

What units will you be using? Metric or English?

You'll need the specific heat of water (4.18 J/g-K), but I'm sure you already knew that.
by JSGilbert
Mon Aug 02, 2004 8:34 pm
Forum: Brewing Science
Topic: Thermodynamics anyone?
Replies: 12
Views: 33414

So you want to calculate the heat capacity(kJ/
by JSGilbert
Mon Aug 02, 2004 8:09 pm
Forum: Techniques, Methods, Tips & How To
Topic: Priming with honey
Replies: 7
Views: 22936

I think you all would be interested in these articles: http://www.nhb.org/foodtech/index.html#micro http://www.nhb.org/foodtech/index.html There is a lot of good info. Haven't you you guys every heard for babies "Until one, honey there is none"? This arose from the fact that there are C. botulinum s...
by JSGilbert
Mon Aug 02, 2004 2:57 pm
Forum: Techniques, Methods, Tips & How To
Topic: Newbie Question
Replies: 6
Views: 7577

With a 5 gal. carboy, you usually want to concern yourself with blowoff by connection a blow-off tube. This gets rid of fusel alcohols and other hop related comounds that I understand are what can/do cause a beer headache and off flavors. All things considered, you might have very little blowoff or ...
by JSGilbert
Mon Aug 02, 2004 2:49 pm
Forum: Brewing Science
Topic: % solution = ??? concentration
Replies: 8
Views: 11961

Here is how I would approach this problem (eventhough it's been quite a while since the post was started): If you had 1 million parts, then 10% would be 100,00 parts. So 100,000 parts per million (mg/L). Here's a more classical approach that arrives at the same answer: If we have a solution of phoph...