Using a grain bag in a mash tun.

[Alpotun]

But for those that have circular coolers with screw-on lids, are you able to close it all the way over top of the bag? Can you screw it on all the way, or do you have to just lay it on top of the cooler?

I use a 10 gal Home Depot cooler with screw-on lid and a wilserbrewer bag. The lid screws on tight with no problem.

 

[Deckers_Beers]

I use a 10 gal Home Depot cooler with screw-on lid and a wilserbrewer bag. The lid screws on tight with no problem.

Awesome. I've looked at their website as well. Thinking about going with the Wilserbrewer.

 

[urg8rb8]

I mash in an unmodified 10 gallon igloo cooler. I use a grain bag as my filter. Mashing in a bag in a cooler is the best of all worlds! Cheap and easy!

 

[Powercat]

buy a Wilserbrewer bag, they fit your cooler and last forever.

 

[Chrisbrewbeers]

I use that brew bag in 10 gallon cooler and it works good. Easy cleanup, no risk of stuck sparge and same efficiency with batch sparging.

 

[brewbama]

I mash in a bag. I've found I have to reduce grain and water due to efficiency increase. Clean up is super quick.

View attachment ImageUploadedByHome Brew1482971351.036012.jpg

 

[RocketBrewer]

Now I want to know if there exists a bag that can line the rectangular cooler in which I mash without dead space outside of the bag? I use a 2yd section of voile now and press it all the way around the cooler walls, but no easy way to hoist and hang it is teh sucking.

A bag should not add any dead space to your cooler. Here is a nice bag made for rectangular coolers. It's reinforced, and they will make it to fit the dimensions of your cooler.

With my HERMS system, I use a bag in my inverted keggle Mash Tun because I was having issues with small bits of grain husk getting past my false bottom and giving me fits with controlling the flow out of my chugger pumps. A bag took care of it, nothing gets past my false bottom any more. Much less prone to stuck sparges now too. Clean up is kind of a wash, tun is a little easier, but now I have to rinse out the bag.

 

[wilserbrewer]

Shameless plug...I make bags for rectangular coolers as well. $33 shipped or about $15 less than above.

HNY
Wilser