https://www.thehomebrewforum.co.uk/threads/how-to-build-a-cool-box-mash-tun.58049/page-2
The false bottom in the above thread uses copper tubing and fittings to produce a manifold that connects to the coolbox tap. My problem with this approach, which I understand is very popular and widely used, is the tedium of cutting all those slots or drilling all those holes! And then having to clean the bits of grain that will inevitably get caught in said slots or holes. So I use what I think is a simpler approach provided you can use or you have a friend who can use a sewing machine.
My false bottom is simply sufficient 15mm glass beads to cover the bottom of my coolbox mash tun.
To keep the grain separate from the glass beads I made a nylon bag (from net curtain material) that fitted the inside of the coolbox and turned over the top edge to keep it in place.
In order to avoid beads blocking the tap entry, I fitted a stainless steel elbow to the tap nipple. I positioned the elbow so that the open end faced the bottom of the coolbox (the elbow may need to be reduced in length to get it to fit). This will produce a syphon and assist in draining the wort.
This style of false bottom provides as a bonus the ability to squeeze out the grain at the end of the mash to extract as much wort as possible.
Edit:
https://shop.houseofmarbles.com/product/bulk-clear-marbles/
https://www.fabricland.co.uk/product/tulle-soft-net-fabric/
The false bottom in the above thread uses copper tubing and fittings to produce a manifold that connects to the coolbox tap. My problem with this approach, which I understand is very popular and widely used, is the tedium of cutting all those slots or drilling all those holes! And then having to clean the bits of grain that will inevitably get caught in said slots or holes. So I use what I think is a simpler approach provided you can use or you have a friend who can use a sewing machine.
My false bottom is simply sufficient 15mm glass beads to cover the bottom of my coolbox mash tun.
To keep the grain separate from the glass beads I made a nylon bag (from net curtain material) that fitted the inside of the coolbox and turned over the top edge to keep it in place.
In order to avoid beads blocking the tap entry, I fitted a stainless steel elbow to the tap nipple. I positioned the elbow so that the open end faced the bottom of the coolbox (the elbow may need to be reduced in length to get it to fit). This will produce a syphon and assist in draining the wort.
This style of false bottom provides as a bonus the ability to squeeze out the grain at the end of the mash to extract as much wort as possible.
Edit:
https://shop.houseofmarbles.com/product/bulk-clear-marbles/
https://www.fabricland.co.uk/product/tulle-soft-net-fabric/
Last edited:
. You need this one for your tutu
