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BIAB: wort is all white after mash and stinks???

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fun4stuff

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What went wrong??


Pic of wort and recipe there.

my Bag and grains also absorbed a lot more water than normal. Most of the 6 gal water i started with his in the bag.
 
That's weird, something is off.

How finely was the grain milled?
How much liquid (wort?) is there on the bottom of that kettle?
Why is it white? Looks like steeped flaked wheat/oats.
Is there much liquid still in the bag? Maybe the pores have clogged?
 
I make a lot of hefeweisen beers (from 100% wheat to 60% wheat) and grind my grains very finely (twice ground). my wort almost always looks exactly like that and my beers come out very well. My mash has never stunk though and all my beers are brew in a bag.
 
In my experience, the impossible-to-drain bag comes from a very acidic mash — like, well below 5. When you say it stinks, what did it stink like?
 
I think i did something stupid.

So it’s been >6 months since i brewed. I ordered 4 all grain kits about a year ago. I thought I had 1 left over. I got these kits from adventures in homebrewing who send all the grains mixed together in a bag

I went to brew and found a bag labeled as a Hef kit (a hef kit that i have done multiple times over the years). I didn’t look too close at it though. I checked to make sure my mill was good (set about as thin as it goes). I usually mill twice- only milled once this time. In fact, my kids did the milling for me! One poured while the other pushed the drill trigger. I was across the room getting water ready.

i definitely added minerals and acid correctly. I triple checked it all and have used this water recipe a number of times.

I was lazy and didn’t check mash pH. I checked pH at end of mash after reading responses here and it was 5.6.

i started with about 6.4 gal. I ended the mash with 3 gal in kettle and 3.4 gal in the bag with grains. I tried pressing and squeezing it out and it’s impossible.

So i started going over what could have happened… looking at my emails for order history. I think i used a large bag of crystal 10L!!! It was in the wrong bag obviously.

i added another pic of what the wort looks like after the mash to the link above.

The SG was 1.0125. Way too low. When i say it stunk… it smells musty/not right. Like stale water. I’ve been brewing beer on and off for 10 years… don’t have a very refined smell or taste, but it doesn’t smell typical.

do you think it could have been a bag of crystal 10 L? It’s the only thing that’s missing. It must have been in a bag of the old hef kit.
 
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C10 is pretty light. It would have steeped, if there was no diastatic malt present. But when steeped, it doesn't look like milk, AFAIK.
Old malt, especially when stored in a damp place, can smell very stale or even like mold.

None explains why so much water/wort is trapped in the grain bag. But then again, I never tried brewing with 50% C10. If there was 30% wheat malt mixed in, it would have provided at least enough enzymes for conversion of some of it, if not all.
 
It’s weird. I don’t know what else would have happened. I store everything in one of those large dog food bins (tightly closing lid).
 
If you used phosphoric, I'd reference this thread for bad phosphoric acid:

Was your mash pH way off?
You may be onto something...
I reckon he used 5.5 ml Lactic Acid (88%), per his recipe (page 3).
That seems like a large amount for that grain bill, unless he has stone hard water.

On page 4 of the images he shows a glass handle jar with the white "wort," it's translucent.
 
As it had been a while since you last brewed, any chance your BIAB bag went into the laundry and held some residual detergent or bleach? The sample pic looks like what I see in my wash tub on the rinse cycle of one of my white loads.
 
As it had been a while since you last brewed, any chance your BIAB bag went into the laundry and held some residual detergent or bleach? The sample pic looks like what I see in my wash tub on the rinse cycle of one of my white loads.
It has been awhile. Could have been rusty… that’s why i was wondering if i messed something up.

i never laundry that wilser bag or use soap or bleach on it. I spray the heck out of it with a garden hose, and submerge it and ring it out. Then hang it to dry. It is an old bag now… i think i probably got it in 2015.
 
You may be onto something...
I reckon he used 5.5 ml Lactic Acid (88%), per his recipe (page 3).
That seems like a large amount for that grain bill, unless he has stone hard water.

On page 4 of the images he shows a glass handle jar with the white "wort," it's translucent.
The Brewfather app was telling me 5.5 ml lactic acid. I had compared it with bru’n water excel sheet (back when i was brewing more often) and it always was pretty close to the same results. I have RO, so i build the profile back up from that. I have made this beer 3-4 times with this same recipe (and remember using 5.5 ml lactic acid because it seemed high).
 
Present in my kettle after the mash. Had sat for a couple hours. I was debating on whether to proceed with the boil.
 

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I think i did something stupid.

So it’s been >6 months since i brewed. I ordered 4 all grain kits about a year ago. I thought I had 1 left over. I got these kits from adventures in homebrewing who send all the grains mixed together in a bag

I went to brew and found a bag labeled as a Hef kit (a hef kit that i have done multiple times over the years). I didn’t look too close at it though. I checked to make sure my mill was good (set about as thin as it goes). I usually mill twice- only milled once this time. In fact, my kids did the milling for me! One poured while the other pushed the drill trigger. I was across the room getting water ready.

i definitely added minerals and acid correctly. I triple checked it all and have used this water recipe a number of times.

I was lazy and didn’t check mash pH. I checked pH at end of mash after reading responses here and it was 5.6.

i started with about 6.4 gal. I ended the mash with 3 gal in kettle and 3.4 gal in the bag with grains. I tried pressing and squeezing it out and it’s impossible.

So i started going over what could have happened… looking at my emails for order history. I think i used a large bag of crystal 10L!!! It was in the wrong bag obviously.

i added another pic of what the wort looks like after the mash to the link above.

The SG was 1.0125. Way too low. When i say it stunk… it smells musty/not right. Like stale water. I’ve been brewing beer on and off for 10 years… don’t have a very refined smell or taste, but it doesn’t smell typical.

do you think it could have been a bag of crystal 10 L? It’s the only thing that’s missing. It must have been in a bag of the old hef kit.

That low of an SG means your mash didn't work.

If you are confident about the water additions, then maybe we can rule that out. You sure you didn't add calcium hydroxide instead of calcium chloride or something?

Did the grain smell musty or off before you mashed it? What do you have left - is it possible your helpers left out the pilsner and/or wheat malt? You have almost 10 pounds of those... if they did get subbed with 10 lbs of crystal, then there was nothing in your mash with diastatic power for the flaked oats and wheat.
 
That low of an SG means your mash didn't work.

If you are confident about the water additions, then maybe we can rule that out. You sure you didn't add calcium hydroxide instead of calcium chloride or something?

Did the grain smell musty or off before you mashed it? What do you have left - is it possible your helpers left out the pilsner and/or wheat malt? You have almost 10 pounds of those... if they did get subbed with 10 lbs of crystal, then there was nothing in your mash with diastatic power for the flaked oats and wheat.

These are the “grains” after dumping in my composter. They don’t even look right.

CaCl2 was right- it has that characteristic small pellet look. My gypsum is in a big ziplock bag (have way to much). I kee my calcium hydroxide in another part of the house (don’t use it anymore). NaCl has a charcuterie look too… all those minerals look different than each other really.

The “grains” didn’t seem off before but i didn’t look close at them. They were in a plastic bag. Didn’t smell off. Whatever i used would have been 1-2 years old (2 years max- never bought in bulk until 2 years ago and my last order was like 10 months ago).
 

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I zoomed in on that image, and to be honest, it looks like rice! Can it be?

I see a few glimmers of tan husk/grain material in the background, but most is white or off-white.
 
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I zoomed in on that image, and to be honest, it looks like rice! Can it be?

I see a few glimmers of tan husk/grain material in the background, but most is white or off-white.

omg. It’s rice. I just went to check what i thought was my flaked rice bag (one other thing i had bulk of) and found my crystal 10 in the bag labeled flaked rice. Man i really screwed up my labeling.

Im an idiot. Didn’t look at the bags that closely and threw everything in the wrong bags.
 

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You need to train up the help to do some quality checks while milling 😄
Sure as salted pretzels.
[...] while milling? Before milling!
Best when selecting your grain, even before it hits the scale.

I now wonder where the stench came from, though... Had it been sitting, wet, in that mash bag for a day (or 2)? That'll do it.
 
No, maybe the smell was about normal for 10 lbs of hot, wet flaked rice??? Lol. It just didn’t smell right. It was about a year old looking at my email order history, but i kept it sealed away.

You would have thought i would have noticed it was all flaked rice when i grabbed the bag out for the kids…

I’m just disappointed i don’t have a beer going. Was really looking forward to having a new beer on tap for my daughters bday party in 1.5 weeks. I placed an overpriced amaon prime order for flaked rice that should get here tomorrow. Hopefully I’ll have enough time to brew it up in a day or two.
 
Don't tell Bezos without receiving adequate compensation, but that name can stick.

What do you need flaked rice for? Brewing a light ale?
You can use regular rice from the supermarket, instead. Just simmer it in ample water for an hour (or 2) and that becomes part of your strike water for the mash.

Yes, you can have that beer ready by end of next week.
 
1. Label your ingredients before putting away in storage.
2. Don't let kids mill your grain or do other critical brewing chores. Give them a root beer and let them watch and learn.
3. Have a few beers and laugh it off. Shiat happens.
 
We’re laughing with you...
This is definitely one of my biggest brew screw ups. Up there with the time I had a full glass carboy break on me (thankfully in my garage and no injury) and the time i had 7 gallons of purchased distilled water leak in my trunk (containers tipped over and lids were old and wore out and not leak proof any more).
 
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