When I brew, it takes me 4 hrs from start to finish incl clean up. Not sure how that compares to regular all grain using a mash tun or three vessels.
The issue for me was the mash. I never could maintain mash temps and about half way through the mash I was turning on the burner to heat back to mash temps. I was close to getting an ice chest to use as a mash tun with a Wilser bag.
Then I found an insulated sleeping bag. Only see a 1 maybe 2 degree drop in temp in one hour and that's even during the winter.
@mongoose33 how is traditional all grain brewing better for Lodo techniques than BIAB? Just cusious.
A very good question. Let me preface this by saying I'm no expert on this, I'm just trying to figure it out.
There are a few places where there is oxygen ingress in the process that the BIAB approach makes it difficult to control.
1. When you lift the bag, the draining wort is exposed to oxygen. Further, there's no way during that to do what's called a lauter cap, a "lid" on the wort to prevent O2 exposure.
2. During the mash you want to use something called a "mash cap," which is similar to the lauter cap. It prevents most of the surface of the mash from being exposed to, and absorbing oxygen from, the atmosphere. It's possible to use one of these in a BIAB setup--I used one--but it's often difficult to find a cap that fits the kettle and bag.
3. In LODO brewing you want to drive O2 out of the strike water. There are two ways to do this, one involves using yeast--something I don't do--the other involves boiling the strike water to drive off the O2, then chilling it back down to your strike temperature. Then, what you want to do is called "underletting" the grist, which means putting the grist in the mash tun (or in this case the kettle), and then filling with the strike water from the bottom up.
That means you have to remove the strike water from the boil kettle and then reintroduce it. A pain, and somewhat counter to what BIAB is supposed to accomplish, i.e., simplicity.
Some argue you should be able to put the grist in the bag and lower into the strike water. I've never done it that way.
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I've been working with LODO since November, though only recently have I been able to do almost all of what my system is capable of doing. One issue with this has been a desire to sample someone's LODO beer to see if it's worth the extra processes involved. I don't know anyone who does it locally, so the only way to test is to make my own.
I've had some success, and as I've become more familiar with it it's become easier. And some of the beer has, frankly, been excellent. There are issues related to recipe formulation--there are alterations I've needed to do--and some other things. My next goal is to get a HERMS system in place so I don't have to remove the mash cap to stir.
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I've been doing a sort of hybrid thing. I'm doing a no-sparge mash in my mash tun, borrowed from what we do in BIAB. I use 8.25 gallons of strike water, accounting for losses in the mash tun, in the boil kettle when I pump to the fermenter, and in the pump and hoses. I adjusted the recipe to account for the greater amount of strike water, and adjusted hops a bit as I think the greater malt flavor components tend to mask the hops a bit. Still working on that. I brew a Rye beer that is usually wonderful; the last batch using LODO is too malty, not enough hoppy. I'll adjust the hops up by about 25 percent the next time, as there needs to be a hop bite to offset the malt. It's not that it's bad--it's not at all, it's actually very flavorful--it's that the balance isn't quite right. I'll fix that next time.
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Does all the above sound like I'm nuts? Maybe. It's the only way I can honestly assess LODO brewing to see if it's worth it. I've had some successes with it--a Pilsner I did recently with LODO won a small local competition, and it has flavor like no Pilsner I've ever had. It's rich, it's deep, and the flavor extends past the swallow. As a friend of mine said, the flavor just goes.....and goes...
Is it worth the extra effort and time? Stay tuned.