The Brew Bag for Kettles® - 200 - 400 - 800 Micron

The Brew Bag for Kettles® - 200 - 400 - 800 Micron

Regular price Prices vary based on Micron rating and size - starts at $31.50 In Stock

Prices vary based on Micron rating and size - starts at $31.50

  • Used for Hemp, Beer, Tea, Coffee, Juice, Cider, Fruit, Berries, and more
  • Measure your kettle - Outer Diameter - Inside height - Choose micron
  • Prices vary based on Micron rating and size - starts at $25.00 for undersize bags
  • Standard Brewing 200 Micron - Recirculate 400 - Corn Mash 800 
  • NO MORE STUCK RUN OFF! Our filter maximizes the out flow of liquid
  • Lift and holds over 100 pounds of grain
  • 100% Guaranteed Against Manufacturing Defects – For Life
  • Prices vary based on Micron rating and size - starts at $31.50
  • Standard Brewing 200 Micron - Recirculate 400 Micron
  • Fits Any Kettle! 1 to 100+ Gallons
  • 100% Guaranteed Against Manufacturing Defects – For Life

Select your Micron Rating and add your exact kettle dimensions (Outside diameter & Interior height).
Available to fit any Kettle: 1 to 100+ Gallons.

Create Your Custom Bag Below:

Get My Bag

Insert actual kettle dimensions - outside diameter and interior height. We adjust your dimensions to ensure a proper fit.

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  • Description
  • Reviews

Standard 200 Micron - Recirculate 400 - Corn Mash - 800 

The Brew Bag® allows all-grain brewing with one kettle. Contact us for a quote on sizes larger than 40" diameter. Recirculating / Mashing Corn?Select the 400 or 800 micron option above. 

NO MORE STUCK SPARGES!!!  This filter maximizes the out flow of wort so sparging is not necessary. After strike water temp is reached  put The Brew Bag® in your kettle, add grain and mash as usual. When the mash is done follow your normal sparge/ no sparge procedures and transfer to the boil kettle.

Features of The Brew Bag® for Kettles

  • Use again and again - NOT a throw away bag

  • 1" poly straps cover seams and bear the weight of the grain 

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

  • Lift and hold over 100 pounds of dry grain - 200 pounds wet

  • Smooth seams on the interior enable quick cleaning

  • Use it as your Hop Bag suspended in the kettle. 

  • Hand wash with an emulsifying detergent like Dawn and drip dry 

Customer Reviews

Based on 714 reviews
Jeff Wiese

I’ve used it multiple times in the past. This is my second bag. Stands up to the heat to maintain mash temperature. Love the loops to hook to carabiners for lifting heavy grains for big beers.

Eric T. ~ Costco Optical Lab, CA
Custom Filters, not related to Brewing

First of all I'd like to thank Rex & the "Brew Crew" for creating a very simple, yet highly effective Custom 200Micron bag for our 1 of 2 Machines in the World for our Optical Lab in San Diego. The bags we ordered showed up in less than 10 days & fit absolutely perfectly. This is not a "normal" bag for the application or brewing...but Rex said, "He's love to take on the challenge". To which he over exceeded our expectations. We have other possible applications which will also create custom applications & he is willing again to take on our challenge. Rex & the "The Brew Crew" are a great asset to have for ANY possible Bag or Application you may want to create. Thank You, again Rex!

Bill Cooper
Now on my third one

The first one I left outside and a varmit tried to get to the grain. So my fault. Second one I turned one of the handles off and ripped a (small) hole emptying the bag once. Also my fault. Just received the third one and my first brew with it. Wonder how long they'd last if I wasn't such a klutz ? Great product, reasonable price, smooth delivery. What's not to love ?

Daniel Nagase
A Great Bag for BIAB Brewing

I’ve been doing BIAB batches for a while using mesh laundry bags. While the those bags got the job done, it was quite difficult to size them to my kettle, and very easy to accidentally rip or melt them if I wasn’t careful. The Brew Bag fit my kettle snugly, and the reinforcing straps and handles make it easy to position and lift. I brewed a dark mild for my first batch with the Brew Bag, so I was worried about the black malt and dark crystal malt discoloring the bag, but the bag only had a faint tint after rinsing and drying it. I chose the 400 micron version and this worked very well - my efficiency calculations weren’t negatively affected and I didn’t have more trub than I usually get.

Overall I’m pretty satisfied with this bag!


Team made sure the bag was sized correctly and helped make the investment in my new tool for brewing easy and confident. Fits great, built solid and works just like it should. Thanks Brew Bag team!!