Quick question bout your Manifold. What size is the PVC you used, and what kind of holes and pattern have you drilled into it? Im looking to move to AG soon but was struggling with a manifold or false bottom, that looks like a very suitable solution to me. Does it work well?
5/8" OD CPVC... drilled with a 1/8" bit.
I did a straight row right down the middle of the pipe, holes separated by 1/2 inch.
Then I did identical rows on either side of that, but I shifted those rows 1/4" to stagger the rows, if that makes sense.
Seems to work very well, I only vorlauf about 32 ounces before it runs clear. I am having efficiency problems (54%), but I sincerely believe it's the crush at my LHBS. I just bought a mill that I will use Sunday 12/14 for the first time, so we'll see if that fixes it. I'll post here for you if it does.
So essentially 1 row along the top half inch apart, and then a row along each side shifted a quarter off the top ones? so only 3 rows of holes? Also does the manifold rest on the bottom of the cooler?
Sorry for the dumb q's, just wanna make sure to make it right! Keep me posted on the efficiency, and let me say, Deez Nuts look delicious!
For each running do you wait ten minutes in between sparges?
Quote:
Originally Posted by Bobby_M
It is. It's MOSTLY for denaturing enzymes while you're doing a rather long fly sparge. If you didn't raise the temp, you'd still be converting over that 45-60 minutes which you may not want. It has a side effect of loosening a bit more sugar but it's absolutely NOT necessary with batch sparging.
The best efficiency I've ever gotten was 94% and it was taking 3 distinct runnings. One following the mash (no mash out infusion), then two runnings following half sparge volume infusions. I don't recommend a mash out infusion unless you want to reduce your number of runnings to two (for a slight reduction is task load/time).
In summary you have two choices:
#1
mash
infuse an amount equal to your grain absorption (about .1 gallons per pound of grain) for your mash out (200F).
stir, vorlauf and drain.
Infuse single batch sparge volume @ 170F, stir, vorlauf and drain.
two runnings, both at elevated temps, relatively high efficiency
I know this post is old but...wouldnt it work nice to put the piping in a grain bag to keep out the grain and make it so much easier to clean and such?? I am going to try this...thanks Jeff
Just brewed this today. I used just over 9.5 gallons of water and ended up with 7 gallons pre-boil. My pre-boil gravity was 1.053 and I ended up with about 6 gallons to go into the Carboy. My OG ended up being 1.058, a bit high for this style of beer. Being my 3rd AG batch and my new Mash Tun, I need to work on my efficiency numbers. As a side note, I ended up with 3 Sparges for this. I took a gravity just before the 3rd Sparge and was still getting 1.029 gravity so decided I would just go ahead and top off my Brew pot (hence 7 gallons).
Bottom line, this was a great tutorial. Thanks
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