johnnyc

Recipes 

I've used BIAB for almost 2 years now and have dialed in my system pretty good. The mesh is sometimes called mosquito netting too.

The most grain I can get in and out of my keggle is ~24lbs. Takes 2 of us to lift it out. On 10 gallon batches I drain the majority of the wort into a second pot just to lower the water level so the bag drains some in the keggle itself. I lift the bag out and hang it over a 5 gallon bucket to continue dripping while I dump the drained wort back into the keggle and start boiling. I dump that bucket of wort back into the keggle once it slows to a drip, usually most of the way through the boil. I've got a sightglass though so I don't have to worry about getting my volumes just right, I can just top off after the mash when I start the boil. I average 70% eff.

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Kegged: Hoppy Amber, ESB, Weizenbock, Breakfast Stout, IPA

Fermenting: Yooper's Oktoberfest

bigjoe

Recipes 

I'm not trying to be a jerk. However, when someone qualifies a statement like this they generally are trying to be a jerk... I truly am not.

The intent of BIAB was a simplified process that used the full volume of mash water, or at least as much of it as physically possible in your vessel, during the entire mash without sparging. I think if your dunking or rinsing the grains while in a bag your doing more of a modified batch sparge.

One of the best features of this technique is that you only need one vessel to mash and boil. The result is time saved in clean up and not sparging.

Full Volume No Sparge brewing (BIAB) is a technique that works without sparging. If your having efficiency problems on normally gravity brews I'd try to figure out why the efficiency is bad as opposed to a band-aid of rinsing the grain.

There are a few posts here on HBT that cover efficiency problems with No Sparge brewing.

I don't have a problem with rinsing the grains. If that works for you great, but I don't think its really No Sparge brewing or BIAB.

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Joe
Ghetto Single Vessel No Sparge brew rig
Other no sparge links on HBT
I love no sparge brewing...by Saccharomyces | Countertop Brutus 20...by Jkarp |Max BIAB Efficiency...by Bakins|Good discussion of mash thickness |Extract to all grain under $10

BARBQ

Recipes 

I did my first two batches without sparging, but I was way under my OG, so I sparged on my third. It was still under what it should have been, but it was alot better. I would love to know how to do it without sparging. I have been reading, but havent found anything to help yet.

I will keep on keeping on, since I got more determination than sense.

gingerdawg

Recipes 

I brew in a bag in an 7.5 gallon turkey fryer, and it is not big enough to do a 5 gallon no sparge BIAB. Just can't get the mash thin enough. I do have the old 20 qt pot from the extract brewing days, and I heat sparge water in it, on the stove, while the mash is in the Turkey Fryer, with the bag in it.
It is brewing in a bag. It is not "no sparge" brewing in a bag. It works great. and I don't have to have a keggel or a huge pot to make it work.

gunner65

Recipes 

From what I have learned low eff with BIAB are poor grain crush.

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Single Vessel BIAB is all I need....Until we figure out the no vessel technique.

Mysticmead

Recipes 

if you get your grains crushed at the LHBS, have them double crush it. you aren't going to be worried about a stuck sparge since you aren't using a MLT. then make sure you have ALL the water needed in the brew pot. account for boil off, grain absorption and trub loss. a fine crush and thin mash will get you into the mid 70's (I get 75%). heating to 170 at mash out helps too as it thins the liquor allowing more sugars to drain

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Mystic Home Brewing - Brew Blog ~ Carboy Cleaner™ Review ~ CustomBIAB Review
My Beers: Dwarven Warrior Oatmeal Stout ~ Ragin Red Honey Red Ale ~ Eleventy In Da Woods IPA

jjones17

Recipes 

BIAB stands for Brew In A Bag from what I have read. No Sparge brewing would be just that... brewing without a sparge.

I have done BIAB without a sparge, and BIAB with a sparge.

I get the preface "I am not trying to be a Jerk here... BUT....", so what are you trying to be? The guy who suddenly proves his worth by stating the obviously inconsequential? No offense dude, but lots of other "Meaning of BIAB as God Intended It" people have said exactly what you are saying now. The fact of the matter is, that people who like to BIAB often sparge - and nobody seems to care about that fact but you. While you are not "Trying" to be a jerk, what else are you?

Brew on mang

ShakerD

Recipes 

I agree with Jjones17

Why are we splitting hairs here?

If you want to do BIAB do it! If you don't then don't!

BTW I got 80% today doing a BIAB and my process is different that the OP.

But who cares it works great for me.

bigjoe

Recipes 

I'm a jerk.

__________________
Joe
Ghetto Single Vessel No Sparge brew rig
Other no sparge links on HBT
I love no sparge brewing...by Saccharomyces | Countertop Brutus 20...by Jkarp |Max BIAB Efficiency...by Bakins|Good discussion of mash thickness |Extract to all grain under $10

bigjoe

Recipes 

BARBQ, like a couple of others mentioned you can go with a very fine crush. If you have a way of checking your pH I'd do that to make sure your in the ball park, and check thermomter. You might try mashing longer. Stir the mash a lot, because it doesn't matter if you disturb the grain bed. I'm having an efficiency problem myself right now. I've done over 40 batches without a problem, and recently my efficiency has been suffering.

I always do a 10 minute mashout.

This one doesn't help efficiency. If you want a fairly clear wort and have a valve on your kettle you can recirculated a liter or 2 at a time during the mash out. Its kind of like a vorlauf. I use a pump now but I would recirculate a liter at a time for 5 minutes during the mash and at mash out when I didn't.

Check out the links in my sig. I think a couple of them discuss BIAB efficiency.

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Joe
Ghetto Single Vessel No Sparge brew rig
Other no sparge links on HBT
I love no sparge brewing...by Saccharomyces | Countertop Brutus 20...by Jkarp |Max BIAB Efficiency...by Bakins|Good discussion of mash thickness |Extract to all grain under $10