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Old 06-09-2011, 02:49 PM   #1
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Default $2 false bottom

I decided to replace the stainless braid inside my mash tun (a 5 Gal Igloo cooler) with a false bottom. Having recently spent shameful amounts on fittings, I wanted to do it the cheap way. This is my setup, it does work pretty well.

Lowes sells bucket covers for $1.90, the diameter is 9”3/4 the exact fit for the bottom of my cooler. I drilled 1/8 holes every ½” et voila.

The plastic is <2> HDPE. I’m not sure it’s food grade. If you are looking for Food Grade, my LHBS sells 2Gal fermentation buckets with an almost identical lid. The lids are the same size and the grommet hole is perfect for the dip tube.

EDIT: Oups, I found these lids at Home Depot not Lowes.




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Old 06-09-2011, 02:57 PM   #2
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Looks Nice

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Old 06-09-2011, 02:59 PM   #3
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What's your little yellow hose for?

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Old 06-09-2011, 03:02 PM   #4
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The yellow thing is a small string. I use it to pull the false bottom out for cleaning. There is a small knot on the other side of the lid.

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Old 06-09-2011, 03:21 PM   #5
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What is old is now new again (for those of you who know/remember of the zapap lauter system )..


Looks good!

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Old 06-09-2011, 03:22 PM   #6
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MiniBrew uses HDPE for their plastic conicals. According to their FAQ:

Quote:
Easy to Clean and Sterilize All popular cleaning and/or sterilizing agents can be used on our plastic (HDPE) fermenters. They will not harm the inert plastic material. Water at 180 degrees is an excellent sterilizing agent; pour it down the sides of the fermenter. The heat will sink into the plastic and all the parts, killing bacteria. This procedure works with stainless also. The large top makes it easy to get inside and scrub dried trub with a Teflon scouring pad. The melting point of plastic is 250 degrees.
Other sources I've found online agree:

Quote:
Excellent for any food related products, FDA, NSF, and USDA approved for direct contact.
So hey, nice job Have you tested it much?

-Joe
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Old 06-09-2011, 03:40 PM   #7
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Quote:
Originally Posted by IrregularPulse View Post
What's your little yellow hose for?
I thought this was a thread about a false bottom...

Looks great, and way to save money.
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Old 06-09-2011, 04:06 PM   #8
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The holes I drilled in a previous attempt were too large and were letting grain pass through. I made one batch since I built this one and I'm happy with the result. It doesn't collapse, and the run off is getting clear after a few minutes of Vorlauf.

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Old 06-09-2011, 04:32 PM   #9
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If you are worried about food grade plastic, you can get free food grade plastic from pretty much any grocery store bakery for free. They are the buckets that frosting comes in, and the stores are glad to give them away. I also use them for fermenting 2.5 gallons batches, since they are 3g buckets.

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Old 06-09-2011, 07:30 PM   #10
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Food grade is one thing but what leeches out of that plastic once it's heated to 180*F is another. Most plastics, even food grade, have a temperature range in which they are considered safe. Just something to think about.

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