The Brew Bag - a mash tun filter for Coolers - Round

Regular price $ 30.00

NO MORE STUCK SPARGES!!!  This filter maximizes the flow of wort. Just put The Brew Bag® in your cooler, add grain and strike temp water as usual. When the mash is done follow your normal sparging procedures and then open the spigot and drain into the boil kettle.

Features of The Brew Bag® for Coolers

  • Use again and again - NOT a throw away bag

  • 2" loops for lifting - either by hand or with a pulley and a hook

  • Holds over 100 pounds of grain

  • Smooth seams on the interior enable quick cleaning

  • All strapping intersections are reinforced with "X" stitching

  • 1" poly straps cover seams and bear the strain of grain - this bag will last and last

  • Hand wash and drip dry

 Additional Benefits of The Brew Bag® for Coolers

You can also use the The Brew Bag™ as a complete Brew In A Bag NO SPARGE mash tool. Just calculate the full pre-boil volume, add approximately 12 ounces more water per pound of grain (this will be absorbed and tossed). Then just open the spigot and drain into the boil kettle. You may need a bigger mash tun for this process. 

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Customer Reviews

Based on 178 reviews
2 Happy brewers

So far we have made one batch using the brew bag and are pleased with the result, our OG was on point due to a finer grain crush that would have led us to a serious stuck sparge without the bag. Clean up after mash was quick and easy - no more shovels in our mash tun.

We will be buying a second brew bag in the coming months for our secondary tun.

Thanks for such a great product!

Great product

Does exactly what it is supposed to do. I have been using it for my Robobrew set up and it has worked great!


Just what I needed with my 10gal cooler to stop any stuck sparges, Works great!

Fantastic quality!

I just used my new Brew Bag for a Belgian Tripel, and I really liked how the reinforced straps made it easy to lift the bag out of my kettle. The bag is also easy to hang from a hook to let wort drip back into your kettle.

Fantastic Bag

This has been an awesome addition to my brewing equipment. As a new brewer, I was barely getting 55% efficiency. This brought me up to 65%, and then allowed me to mill my grains more, bringing me to 72% and climbing. Easy to use, easy to clean, I love it. I’ve even used it over my racking cane as a filter when transferring wort or beer.

My only criticism, which is tiny, is that this is marketed as having the seams on the outside for easier cleaning. This is true of the main seams, but not the top rim of the brew bag. So when I tip out the grains, they still get stuck under the top rim. It’s a very minor point, but would be better to have that seam go to the outside as well to keep everything the same, and for easier cleaning.

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