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Brews & Views Bulletin Board Service * Brews and Views Archive 2004 * March 30, 2004 * Boiling in a Sanke, evaporation rate < Previous Next >

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Mike Mayer (68.69.210.28)
Posted on Sunday, March 21, 2004 - 02:28 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

For those of you who use Sanke kegs to boil, what evaporation rates are you seeing (gal/hour)? Looks like I'm hitting about 2.4 gal/hour with mine.
 

Bill Moore (65.80.120.63)
Posted on Sunday, March 21, 2004 - 04:29 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I've been getting about 1.5-2 GPH boil off rates and that's without a strong boil.
 

Art Beall (69.40.197.247)
Posted on Sunday, March 21, 2004 - 04:30 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Mike,

When starting with 12-13 gallons in a 1/2 barrel Sanke keg, I get evaporation about 1 gal per hour, once a medium rolling boil begins.

Art
 

Bill Pierce (24.141.129.137)
Posted on Sunday, March 21, 2004 - 05:07 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

The evaporation rate for my converted Sanke keg is 1.3 gallons per hour with a moderate to full boil. Your rate will vary depending on the burner and how vigorous is the boil, but once you know it you can factor it into your calculations.
 

Mike Huss (24.123.94.154)
Posted on Monday, March 22, 2004 - 01:25 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Same here Mike, I typicaly get about 2 to 2.5gal/hr with mine too.
 

Pacman (68.51.78.225)
Posted on Monday, March 22, 2004 - 02:38 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I'm curious as to how vigorous of a boil you guys are using to get 2+ gallons of boiloff... I get about 1.25-1.5 gallons / 70 minute boil. That's in 3 different kettles: a 20g, a 15g Polarware and a 10g kettle. I typically bring the wort to a very vigorous boil at first then backoff to a medium rolling boil when i add the first hops.
 

PalerThanAle (65.168.73.62)
Posted on Monday, March 22, 2004 - 03:02 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I get at least 2 gallons in 70 minutes. Last batch I started with 6.25 gallons and ended up with 4 gallons in the fermenter (Well 5 gallons but about a gallon of it was trub and hops).

PTA
 

Mike Huss (24.123.94.154)
Posted on Monday, March 22, 2004 - 03:34 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Pacman, I don't think I boil any more vigorously than anyone else. I crank it up to get it going and then throttle it back to probably about 1/4 on the regulator. I was shocked too when I did my first boil and found I lost that much, but it's been pretty consistent since then. I started with 8 gal and ended up with 5.5 on my last batch for a 60 minute boil.

This was a big reason I had to build a bigger tun. I was using a 5 gallon one and I wanted to batch sparge. Since I wasn't able to get 4 gallons out of each charge in a 5 gallon tun I had to do 3 charges. Since that takes as much time as fly sparging I built and used a 56 qt tun on my last batch.
 

Vince Mash (209.204.73.230)
Posted on Monday, March 22, 2004 - 04:27 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

interesting reading:

http://hbd.org/hbd/archive/4154.html#4154-11


Mash

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