

After 45 minutes, I collected the first runnings and added it to the kettle. I followed my typical brewing process for this 10 gallon batch of Vienna Lager, which began with overheating my strike water by 7☏, filling the cooler to pre-heat, then mashing in. I was sort of expecting the bag to fit my cooler a bit tighter, but I actually appreciated the extra material because it decreased the likelihood of the bag slipping off the edges into the tun. Prior to mashing in, I removed the stainless braid from the inside of my MLT and left the ball valve in place, though draining could easily be done using the proper diameter hose with an inexpensive inline ball valve. Just like my BIAB kettle filter from The Brew Bag, this was of extremely high quality with strong seams and tightly attached handles. I received it a week later and put it to use the following weekend. He offered to send me a bag custom made to fit my cooler in exchange for an honest review. I hadn’t, but it seemed like a viable and uncomplicated option.

MASH TUN DEAD SPACE KETTLE FULL
I typically mash in converted cooler MLTs because I often make batches too large to fit the full volume in my kettle, though I absolutely see the value in BIAB and find myself utilizing the method on smaller batches with absolutely no ill-effects. Over the last year or so, Rex and I have engaged in a few conversations about the merits of BIAB and in a recent chat he asked if I’d ever considered using a mesh bag filter in my MLT in place of my current stainless braided hose. Rex from The Brew Bag is, perhaps obviously, a huge proponent of Brew In A Bag (BIAB), the relatively modern approach to mashing that originated in Australia, and is adamant about destigmatizing the approach. Mosaic Of Change IPA by House Of Pendragon.
