The Brew Bag is a Made in the USA, purpose designed BIAB bag. It has four loops for lifting the bag out of your kettle, every seam is reinforced for long life and it is available in a number of sizes for kettles, keggles and coolers. If they don’t carry the size you want, The Brew Bag will custom make it for you.

Here’s a hands on look at the Brew Bag…

I’m using the 30-42 Quart Size for my 10 gallon kettle. A look at one of the handles and the tag

A close up of one of the reinforced corners. Every seam is reinforced.

The bag hanging by all four handles from my Bulldog Ultimate Pegboard

I received a sticker with my bag

So you can get an idea of the material mesh, here is a picture of the bag on top of the included sticker. Click to enlarge.

For comparison, here is the mesh of a paint strainer bag that I have used for BIAB. Noticeably different. Click to enlarge.

Installed in my Blichmann G1 BoilerMaker Kettle.

Inside view installed in my Blichmann 10 gallon kettle.

Mashing Great Fermentations’ 1 Hour IPA in the Brew Bag



Stirring the Mash using my 24″ Stainless “Brewer’s Whisk”

The mash temperature for 1 Hr IPA settling in. Tip: I mashed out this beer. That’s one of the benefits of BIAB – direct fired mash tun = easy step mashes and mash outs. During that process, one of the Brew Bag handles got a little too close to my propane burner and melted just a bit. Don’t do that.

At the end of the mash. Worth Noting: Some people wrap their kettles up with some sort of insulation to maintain the temperature during the mash. I think that’s a great idea. However… I don’t do it. When you add in all the water up front, the mash for a 5 gallon batch is considerably. It maintains temperature reasonably well with no insulation. Sometimes I will fire up my propane burner half way though (stirring the entire time) to get back up to desired mash temp.

Draining the Bag. I recommend using High Temp Gloves to make this easier. BIAB has a bunch of benefits including 1. Cost, 2. Simplicity, 3. Generally faster than other methods, 4. Less to clean up, 5. Less to store and 6. Because you have a direct fired mash tun, it’s easy to do step mashes and mash outs. I’ll add one more to the list… if you have a Kettle with a sight glass in it, like Blichmann’s BoilerMaker (Great Fermentations, More Beer and Adventures in Homebrewing), or you otherwise have a way to easily measure volume, you can… hit your pre boil volume every time. I’m holding the bag here, and looking at the sight gauge. I did that until I hit my desired pre boil volume. Whammo.

Cleaning your mash tun (the bag) is as easy as dumping the grain out and rinsing the bag. Here is what the bag looks like after rinsing it with… discarded wort chiller water. I do take it in the house and clean it more thoroughly, but…it’s in pretty good shape after a rinse with re-used wort chiller water.

A soak in hot PBW followed by a good rinse and dry and it’s ready to be used again.

A look at the final product… a Spiegelau IPA Glass filled with delicious 1 HR IPA

Here’s a look at the Brew Bag installed in the Blichmann G2 [Review]. It’s pretty well the exact same size as the G1, so it fits the same. The G2’s flat handles are a great place to use a clamp to secure the Brew Bag in place. Tip: Install the Brew Bag in your dry kettle first and make a note of where it should sit in the kettle so that the bottom of the bag doesn’t touch the bottom of the kettle.

Mashing More Beer’s M-80 IPA Small Batch Brewing. After using the Brew Bag for full 5 gallon batches, I was motivated to give up my old paint straining bag for doing small 2.5 – 3 gallon BIAB batches. This photo shows the small sized (20-24 quart) Brew Bag next to my previous paint strainer bag. Not. Even. Close. Logo on the small bag Of course, the small bag sports the same quality material, stitching, reinforced seams and handles as the larger version. A look at the small bag This fits perfectly in Anvil Brewing’s 5.5 Gallon Kettle [Review] Brewing a half batch of Great Fermentations “Piney the Welder“

I’ve done quite a bit of BIAB brewing. I’ve used a few different types of bags. Having used the Brew Bag for quite a while, I can tell you that it’s the highest quality bag I’ve used. It is purposed designed, by a homebrewer, for homebrewing and that shows. From the reinforced seams to the handles to the availability of a number of sizes [and custom sizes] to the quality of the fabric. I can wholeheartedly recommend the Brew Bag for BIAB brewing.

Features (from brewinabag.com):

Use again and again – not a throw-away bag

1″ polypropylene straps for easy pick up using your hands or a pulley and hook

Seams are on the outside – no particulates get trapped in the bag

Use it as your hop bag – but it must be suspended above the kettle bottom

The straps cover the seams and bear the strain on every use – this bag will last and last

Holds over 100 pounds of grain

Hand wash and drip dry

The Brew Bag is available in a variety of sizes for kettles, keggles and coolers. If they don’t have the size you’re looking for, they will custom make it based on your needs.

Check out the instructions page on www.brewinabag.com for step by step instructions on BIAB.

Check it out – Here

Check out our brewinabag.com coupons page for current deals

Check out My BIAB Water Calculation Spreadsheet with narrative directions. It makes figuring water temps and amounts easy,

Also: All Grain Tips & Gear | 10 Gallon Mash Tun Conversion Kit [Review] | Cereal Killer Grain MIll | Batch Sparge Spreadsheet | BIAB Brew Day Spreadsheet | The Brew Bag – Purpose Made BIAB

Special thanks to Rex at The Brew Bag for providing me with a bag to try out.

Also: All Grain Tips & Gear

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