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Author Topic: WTF is with my mash eff  (Read 3178 times)

Offline fakr

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Re: WTF is with my mash eff
« Reply #15 on: March 11, 2012, 05:54:14 PM »
I definitely want to see your mash tun and how you mash out to get those numbers.  That's amazing.

What are you using for a mash tun?  And I noticed you put a 5.2 ph for your mash...you using 5.2ph stabilizer?
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Offline Chris Craig

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Re: WTF is with my mash eff
« Reply #16 on: March 11, 2012, 06:24:01 PM »
I have a wooden dowel that I marked in 1 gallon increments for my keggle.  I measured out the water using a 2qt jug.  I measured the jug with a measuring cup and marked the side. For sparge water, I just measure using the 2 qt jug. No dowel.

Today, I verified the markings on the jug and the dowel.  They're accurate enough.  

I eyeball the fractions.  It was a mistake to write 7.7 gallons.  I meant 7.75.  It's pretty hard to eyeball 5/100ths :)  It looked like 3/4 of a measure. I didn't measure 5.95 after shrinkage.  I just did the math.

Offline Chris Craig

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Re: WTF is with my mash eff
« Reply #17 on: March 11, 2012, 06:29:45 PM »
If my measuring stick was off by an entire gallon, and I actually only had 6.7 gallons in the kettle, then I'd have 83% efficiency.  But, I know I have really close to gallons in my carboy.  And I measured what was left in the kettle by pouring it out into a smaller pot, and then into the measuring jug.  There was 1 gallon left.  That's consistent with what I measured.

Offline Chris Craig

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Re: WTF is with my mash eff
« Reply #18 on: March 11, 2012, 06:30:51 PM »
I'm sure I did something wrong, and it's driving me crazy.  I've spent hours thinking through it.

Offline Richard

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Re: WTF is with my mash eff
« Reply #19 on: March 11, 2012, 06:37:31 PM »
I'd have to watch you brew to figure it out, I don't think you should be able to reach those numbers with a single batch-sparge.
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Offline Chris Craig

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Re: WTF is with my mash eff
« Reply #20 on: March 11, 2012, 06:55:23 PM »
I sparged twice.