7
votes
Accepted
Why do all-grain when you can do BIAB?
Well BIAB is all grain brewing. Not to be confused with just steeping specialty grains in extract brewing.
If you have a kettle big enough to do a full mash, doing a partial mash and extract is ...
- 18.5k
6
votes
Accepted
How do you wash nylon grain bags for first use?
Toss them in the laundry with your whites.
No farbric softner.
Then air dry.
- 18.5k
6
votes
Accepted
Is it possible for flavors from the malts to stick with a mash bag?
In practice a nylon bag can become discoloured but it rarely gets so contaminated as to actually affect the flavour of a brew. As long as the bag is cleaned of all debris and thoroughly rinsed it ...
- 5,631
6
votes
Is there a disadvantage to screening the flour out of my grain before mashing with BIAB?
'Is there a disadvantage to screening my grain to remove the flour before mashing?'
Aside from your point about losing extract (the most important thing, really), a few things I can think of:
Fine ...
- 6,417
4
votes
Trying to calculate my efficiency correctly
I can see that your post mash and post boil gravities are really off.
For example you state an estimated post mash gravity 1.037 after correction, but then have 1.030 post boil. This would only be ...
- 18.5k
4
votes
Trying to calculate my efficiency correctly
Looks like you are doing it right to me, using those calculators.
The only thing that might change your actual # is the calibration temp of your hydrometer. Be sure that it is 20C. Some hydrometers ...
- 36.2k
4
votes
Why do all-grain when you can do BIAB?
BIAB IS all grain brewing. But it's not traditional multi-vessel brewing. Some batch sparge with a cooler, others fly sparge with a sprinkler, some use a bag for the whole water amount (BIAB). All-...
- 366
4
votes
Accepted
Brew in a bag - mash temp all over the place
I do normal all grain procedure and the situation is the same.
The biggest heat flux will be on outer diemeter of the mash tun. The better the insulation, the smaller the heat flux will be. Usually ...
- 194
3
votes
Accepted
Doing BIAB with several smaller bags instead of a big one
I have been using this method for three years or more, starting off with four bags and then cutting back to three, with between 1.5kg and 2kg per bag. If mixing grain, I split the different varieties ...
- 531
3
votes
Doing BIAB with several smaller bags instead of a big one
In theory this would work.
The only caution would be to make sure your milled grain very well blended to have even portions of each grain in each bag. Since mixing it as a whole as once in the mash ...
- 18.5k
3
votes
Doing BIAB with several smaller bags instead of a big one
A brewster friend had just such a set up for all-grain brewing. It seemed to work well and the beer was fine. It seemed easier to handle the smaller bags as they were not as heavy (or so full of wort)....
- 381
3
votes
Are protein rests worthwhile in BIAB?
I do BIAB, and I don't think protein rest has much with extraction efficiency. Mashout temperature has, however: if wort has lower viscosity due to higher temperature, it will better flow from the ...
- 1,498
3
votes
How do you wash nylon grain bags for first use?
No soap. Don't weaken them in the sun. Just drop in PBW for at least 1/2hr. Rinse in hot water (at least as hot as the water was when you started soaking it). Drip dry
- 76
3
votes
BIAB vs mash tun taste test
I think your over whether 'BIAB can achieve the wonders of a mash tun brewing' is only commonly understood as well as questions like 'do I need a starter'? or 'Can I possibly make beer without pure ...
- 366
3
votes
Filtering BIAB wort
I also use BIAB with a bag bought online. The flour from the crushed grain flows pretty freely out of the mash and is present after the boil and chill as a huge cloud settling towards the bottom of ...
3
votes
Is it possible for flavors from the malts to stick with a mash bag?
I've not experienced any carry over from stained bags or beer lines for that matter.
If it's clean, it's clean. Staining is usually just a pigment change.
I guess it's about like tasting a washed ...
- 18.5k
2
votes
Accepted
Brew in a bag partial boil
Yes, you do simply put all grain (crushed!) in a bag. That's the point.
However Brewdog's catalog calls for fly sparging, something you simply won't do. With fly sparging, your extraction efficiency ...
- 3,718
2
votes
Trying to calculate my efficiency correctly
First, I can't see your images from my work computer so I'll explain it from scratch.
Each type of grain (base malt and adjuncts) have a potential yield of sugar. For simplicity's sake, we'll use ...
- 1,152
2
votes
Why do all-grain when you can do BIAB?
I have not had any issues with efficiency with my BIAB setup. But it does takes time to understand how your system works and I squeeze the hell out of my bag. (Without a single issue with astringent ...
- 101
2
votes
Accepted
Should you put entire grain bill through Protein Rest?
I tried wheat and rye only twice. First time I put all my grain thorough beta-glucan and protein rests. There was little to no foam. Second time, I did it only on unmalted grain, malted rye and malted ...
- 3,718
2
votes
Accepted
Is this chill haze?
No that is not chill haze. It is a mixture of yeast, hops, and proteins that form from the hot and cold break. I agree it looks like you have some Starsan in your batch. I learned early swap the blow ...
- 101
2
votes
How do you wash nylon grain bags for first use?
A good old fashioned hot water soak, a brewing sanitiser and sun bleach to dry will do the trick. Sometimes that plastic smell you describe is impossible to completely get rid of though. At least you ...
2
votes
How do you wash nylon grain bags for first use?
Boil new bag in water for a few minutes. Dry in microwave. Clean. Sterile. Done.
Repeat for next use.
- 5,631
2
votes
Pre-boil volume when doing a separate boil-down
When I do a boil down, I add water at the end if needed. But I care more about boiling to gravity than volume. Keep in mind that your gravity will not change due to the boil down. You're boilng off ...
- 33.4k
2
votes
Would this grain bill make an Amber Ale?
I figure approximately 20-22 SRM. You might be pushing the color a bit towards the darker end, but it will work I think. Maybe go to 7oz each of the C60 and the Amber.
- 36.2k
2
votes
Accepted
Check beer for unfermentable sugars?
Unadjusted readings from refractometers are accurate only with no alcohol present in the sample. So taking a reading on fermented beer will not give you an accurate specific gravity.
Also, as an ...
- 3,375
1
vote
Accepted
Pre-boil volume when doing a separate boil-down
The recipe states:
Recipe Specifications
Batch Size: 5.50 gal
Boil Size: 7.75 gal
Estimated Pre-Boil Gravity: 1.065 SG
Estimated OG: 1.091 SG
Estimated FG: 1.006 SG
Estimated ABV: 11.4 %
Estimated ...
- 460
1
vote
Brew in a bag - mash temp all over the place
I guess in the end having small variations between different parts of mash tun/kettle at mashing doesn't really matter. I'd bet $20 that taste difference between 1) single infusion just left alone, ...
- 1,498
1
vote
BIAB vs mash tun taste test
It would be interesting as a comparision on efficiency and ease of brewday.
As for the final beer. You can achieve the same results in the quality of beer with both methods.
A mash tun has a lot of ...
- 18.5k
1
vote
Is this chill haze?
Looks like starsan on top that siphoned into the fermentor from a Blow off bottle. This will happen if the wort drops temp faster than co2 is produced.
Chill haze happens in the finished beer at ...
- 18.5k
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