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Home Brew Forums > Home Brewing Beer > DIY Projects > Kettles, Mash Tuns, & Hot Liquor Tanks > keg lid false bottom
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Old 01-07-2013, 04:30 PM   #11
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Looks a LOT like what I did...
I used a cutoff blade on an angle grinder and then filled the "web" part that was left with somewhere around 1,200 holes with a #40 drill. I am getting right at 85% efficiency with this fb on session beer. I'm couldn't be more happy with it.

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Old 01-07-2013, 07:32 PM   #12
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Huaco, I did see yours! I'm glad I didn't take 100% credit! Hoe are the slits with that angle grinder. I was afraid that it would be too wide

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Old 01-07-2013, 07:52 PM   #13
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Nope... they are actually just right. While cleaning up after brewing I have been paying close attention to the slots to see if they get packed with grain. On average, I will have about 10-15 little pieces of crushed grain lodged in a slot or hole. That is nothing that is going to effect flow or efficiency.
Just take your time with the cutting wheel on the angle grinder and you will be good. Don't force the blade... let it do the work it was designed to do. My only screw up on this FB is seen in this photo at about 7-O'clock mid way down the group of slots. The grinder got away from me and gouged a little bit.
Try to calculate your open space percentage and keep it above 15%. I think I have 17% open space in this one.

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Old 01-07-2013, 07:56 PM   #14
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Subscribed!

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Old 01-07-2013, 08:18 PM   #15
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Quote:
Originally Posted by Huaco View Post
Nope... they are actually just right. While cleaning up after brewing I have been paying close attention to the slots to see if they get packed with grain. On average, I will have about 10-15 little pieces of crushed grain lodged in a slot or hole. That is nothing that is going to effect flow or efficiency.
Just take your time with the cutting wheel on the angle grinder and you will be good. Don't force the blade... let it do the work it was designed to do. My only screw up on this FB is seen in this photo at about 7-O'clock mid way down the group of slots. The grinder got away from me and gouged a little bit.
Try to calculate your open space percentage and keep it above 15%. I think I have 17% open space in this one.
That's too much math for me lol. I'll be giving it a go then! Will post pics when done
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Old 01-13-2013, 01:55 AM   #16
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Get a good flow with out grain. Only leaves about a cup of liquid at bottom. I'll probably add a few more holes on the star shaped area near

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