Mash efficiency - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Mash efficiency

Reply
 
Thread Tools
Old 06-23-2009, 11:56 AM   #1
Burgia
Recipes 
 
Jun 2009
Burg, KY
Posts: 25


OK, I am thinking about making the jump to AG but have a question. Maybe I'm over thinking this but it seems that taking a gravity reading would not be the only factor in determining your efficiency. Wouldn't starchy water that had not yet converted give you a higher gravity reading then just water?

 
Reply With Quote
Old 06-23-2009, 12:34 PM   #2
COLObrewer
Recipes 
 
Jan 2009
Pea Green, Colorado
Posts: 2,936
Liked 67 Times on 59 Posts


Thats probably why they do a iodine test before collecting runoff?

 
Reply With Quote
Old 06-23-2009, 12:41 PM   #3
stale
 
stale's Avatar
Recipes 
 
Mar 2007
TRI-CITIES, WA.
Posts: 137

Burgia, you should be checking that conversion is complete before you start taking gravity readings. A lot of people will do this by pulling out a tsp. of the mash (liquid only) then using a drop or two of iodine in it. If it changes color (blue, black,purple) then it is not fully converted. There shouldn't be any change of color in the iodine if it has converted. If conversion isn't complete then you should mash longer. As for the specific question you asked it sounds logical that starch is heavier than water but I couldn't really answer one way another.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
108% mash efficiency?! bradsul All Grain & Partial Mash Brewing 26 06-09-2008 01:03 AM
Mash Efficiency Cregar All Grain & Partial Mash Brewing 15 07-05-2007 04:39 PM
New Mash Tun efficiency voodoochild7 All Grain & Partial Mash Brewing 2 02-25-2007 08:23 PM
Partial Mash/Mini Mash Efficiency uwmgdman All Grain & Partial Mash Brewing 12 06-21-2006 01:09 AM
mash efficiency jjsscram All Grain & Partial Mash Brewing 2 05-17-2005 12:34 PM


Forum Jump