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Search: Posts Made By: goatchze
Forum: Brew Science 11-10-2011, 06:54 PM
Replies: 2
Views: 1,075
Posted By goatchze
If you assume it's a binary mixture of ethanol...

If you assume it's a binary mixture of ethanol and water, measuring the density at any temperature will give you the alcohol content.

Trying to get the alcohol content accurately by what you're...
Forum: Bock 10-06-2011, 04:13 PM
Replies: 34
Views: 14,555
Posted By goatchze
Nope, no real changes. I just need to make more...

Nope, no real changes. I just need to make more of it!
Forum: DIY Projects 10-06-2010, 03:14 PM
Replies: 29
Views: 5,077
Posted By goatchze
ekjohns, It worked out well. I've been...

ekjohns,

It worked out well. I've been traveling a lot lately and haven't brewed in a while, but I got the sensor(s) working just fine. I placed the IC temp sensor inside of a "probe" made of...
Forum: Label Display & Discussion 05-12-2010, 02:35 PM
Replies: 17
Views: 1,246
Posted By goatchze
Yeah, I like it. I like the old school...

Yeah, I like it. I like the old school sketches/copper plate look on labels.
Forum: Label Display & Discussion 05-11-2010, 06:52 PM
Replies: 17
Views: 1,246
Posted By goatchze
Looks nice, and I agree with slowbie's comment on...

Looks nice, and I agree with slowbie's comment on the legability of the yellow text.

Here's an idea, take it for what it's worth. Why not color code the entire labels since you're using the same...
Forum: Bock 05-11-2010, 06:28 PM
Replies: 34
Views: 14,555
Posted By goatchze
Duffman, Sorry to reply so late. You can...

Duffman,

Sorry to reply so late. You can check out my Terreros Pils (http://www.homebrewtalk.com/f58/terreros-pils-123577/) recipe if you want to brew an AG lager with 2row. Just substitute the...
Forum: DIY Projects 03-08-2010, 07:37 PM
Replies: 2
Views: 798
Posted By goatchze
Sounds reasonable. To make sure I'm...

Sounds reasonable. To make sure I'm understanding, your switch is a DPDT with ON-OFF-ON? Middle means nothing is on, one way means one is on, the other way means the other?

IMO it should work...
Forum: DIY Projects 03-08-2010, 06:36 PM
Replies: 28
Views: 1,943
Posted By goatchze
Butterfly valves tend to be used for large...

Butterfly valves tend to be used for large diameter piping or when someone is "retrofitting" the valve into piping where it wasn't previously. I'm not sure if it's the best choice in your case.
...
Forum: Bock 03-04-2010, 03:13 PM
Replies: 34
Views: 14,555
Posted By goatchze
Let me start by saying I like Shiner and am not...

Let me start by saying I like Shiner and am not trying to knock their product(s).

But Shiner Bock isn't really a bock; it's more like an "amber/dark lager". It's not 100% true to style. For...
Forum: DIY Projects 02-24-2010, 08:57 PM
Replies: 65
Views: 5,159
Posted By goatchze
Thirteen, Thanks, this is my point. EDIT:...

Thirteen,

Thanks, this is my point. EDIT: But, I think we all are saying the same thing, just in different ways.

----------------

Jkarp,

Thanks, these were the "pros/cons" or points I...
Forum: DIY Projects 02-24-2010, 04:27 PM
Replies: 65
Views: 5,159
Posted By goatchze
OK OK, I think we're running in circles here. My...

OK OK, I think we're running in circles here. My issue wasn't your math, it was the statement that the boil directly affected your efficiency or the way your efficiency is calculated. To me it's...
Forum: DIY Projects 02-23-2010, 10:48 PM
Replies: 65
Views: 5,159
Posted By goatchze
The funny thing is, the use of "points" is...

The funny thing is, the use of "points" is supposed to simplify the calculation. however, since the specific gravity can change pre-post boil, I really think it makes it more complicated.

It...
Forum: DIY Projects 02-23-2010, 10:43 PM
Replies: 65
Views: 5,159
Posted By goatchze
Sorry, it's getting late over here in Holland and...

Sorry, it's getting late over here in Holland and I've had one too many Hertog Jans!

Flip that equation. The numerator should be the sugar you recovered, the denominator the "potential sugar".
...
Forum: DIY Projects 02-23-2010, 10:19 PM
Replies: 65
Views: 5,159
Posted By goatchze
... I think this may be where the disconnect...

...

I think this may be where the disconnect is. To me, there is no difference in the calculation, whether I have no sparge, a batch sparge, or I fly sparge.

I use:

GRAIN x PTS /...
Forum: DIY Projects 02-23-2010, 09:28 PM
Replies: 65
Views: 5,159
Posted By goatchze
Right. And this is exactly what a sparge is...

Right. And this is exactly what a sparge is accomplishing? The difference being magnitude. (sorry, I left this off my post and edited it in later)

Even if you're sparging, if you want 5...
Forum: DIY Projects 02-23-2010, 09:15 PM
Replies: 65
Views: 5,159
Posted By goatchze
I'm sorry guys, but that graph is just too rosy. ...

I'm sorry guys, but that graph is just too rosy. I've yet to hear anyone explain to me how the boil-off rate is effecting your efficiency (other than justifying the use of sparge water)? Your graph...
Forum: DIY Projects 02-23-2010, 07:24 PM
Replies: 65
Views: 5,159
Posted By goatchze
BTW, thanks for the debate guys. You're givine...

BTW, thanks for the debate guys. You're givine me something to do while bored in this hotel in Holland! :mug:
Forum: DIY Projects 02-23-2010, 07:22 PM
Replies: 65
Views: 5,159
Posted By goatchze
Maybe we're not comparing apples and apples. ...

Maybe we're not comparing apples and apples. Let's take a step back to the fundamentals. What are we trying to achieve? Sugar extraction.

When I think of "brewhouse efficiency" I think of how...
Forum: DIY Projects 02-23-2010, 05:55 PM
Replies: 65
Views: 5,159
Posted By goatchze
Calculating efficiency is the same regarldess of...

Calculating efficiency is the same regarldess of whether you use 0, 1, or 2 sparges. You are correct that the amount of water "can" affect the efficiency, but I don't think it is in the way you are...
Forum: DIY Projects 02-23-2010, 05:44 PM
Replies: 65
Views: 5,159
Posted By goatchze
??? I guess it depends on how you calculate...

???

I guess it depends on how you calculate efficiency. The way I calculate it, it doesn't matter the batch size, evaporation rate, or boil time. Really all that matters is the conversion and...
Forum: DIY Projects 02-23-2010, 05:29 PM
Replies: 65
Views: 5,159
Posted By goatchze
Bobby, no offense, but what you said above...

Bobby, no offense, but what you said above doesn't make sense. If it depends on equilbrium, then it depends on concentration gradients. By definition equilibrium is when the concentration gradient...
Forum: DIY Projects 02-23-2010, 05:19 PM
Replies: 65
Views: 5,159
Posted By goatchze
Your efficiency is further reduced because the...

Your efficiency is further reduced because the concentration gradient between the water/sugar trapped in the mash and the water/sugar in the wort is less.

Just like heat exchange needs a...
Forum: DIY Projects 02-23-2010, 05:12 PM
Replies: 65
Views: 5,159
Posted By goatchze
Maybe so, I guess you could say that it's...

Maybe so, I guess you could say that it's technically a three vessel system because I need some water storage. However, if you're able to use tapwater, it is a two vessel system. Even if not, you...
Forum: DIY Projects 02-23-2010, 01:18 PM
Replies: 65
Views: 5,159
Posted By goatchze
The pol, You're right on the RIMS heater...

The pol,

You're right on the RIMS heater replacing the HLT, that's the idea.

Building your own water isn't a concern. As it's drawn up, the pump will actually be able to move water from a...
Forum: DIY Projects 02-23-2010, 12:19 PM
Replies: 65
Views: 5,159
Posted By goatchze
Help me understand something - RIMS/eHERMS Sparge

:confused:In looking through various builds on this board, I'm still confused about the Brutus system.:confused: My confusion is centered on the way that the Brutus sparges by mixing the wort with...
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