[denny]

What is the thinking behind dissolving the Brewtan in a wort slurry for the boil addition?  Is that really necessary?

Joe says it necessary and he knows more about it than anyone I know.

[bboy9000]

So a discussion in another thread about the perception if increased roast flavor in LODO beer ha me questioning the role of Brewtan B as a factor.  Brewtan B is tannic acid.  Aren't roasted malts roasty because of tannins?  If so, could the increase in tannins due to tannic acid increase the roasty flavor perceptions?  Or does the tannic acid in Brewtan Breact with other compounds that make it into somethings that is no longer tannic acid?  Or are tannins not what make roasted malts have the roasted flavor?

[homoeccentricus]

Last Sunday, I brewed a Rochefort 4 with lodo techniques and BTB. I noticed the trub was much more compact than usually, and so more clear wort could be racked off as a nice side effect. Is this lodo, BTB, combination of the two?

[The Beerery]

So a discussion in another thread about the perception if increased roast flavor in LODO beer ha me questioning the role of Brewtan B as a factor.  Brewtan B is tannic acid.  Aren't roasted malts roasty because of tannins?  If so, could the increase in tannins due to tannic acid increase the roasty flavor perceptions?  Or does the tannic acid in Brewtan Breact with other compounds that make it into somethings that is no longer tannic acid?  Or are tannins not what make roasted malts have the roasted flavor?

I do not use BTB currently, my roast flavor is still intense.

[lupulus]

Last Sunday, I brewed a Rochefort 4 with lodo techniques and BTB. I noticed the trub was much more compact than usually, and so more clear wort could be racked off as a nice side effect. Is this lodo, BTB, combination of the two?

Did you combine it with whirlfloc/ Irish moss? What do you mean by usual? Whirlfloc?
Thanks in advance

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[hafmpty]

I just ordered a 50 gram packet of BrewTan B from iBrew.com.au.

I use a Tower of Power recirculating system to brew 2.5gal BIAB batches. What would you recommend for my dosage?

I know the standard amount is 1/4tsp per 5gal in the strike water and 1/2tsp per 5gal in the boil. My mash volume varies based on my grain bill to get me to my target pre-boil volume, but it hovers around 5gal. As for other volumes:

I aim for 4.25gal pre-boil volume for a 60min boil & 4.75gal for a 90min boil. Post-boil I shoot for 3.25gal with 3gal going into the fermenter.

[homoeccentricus]

Last Sunday, I brewed a Rochefort 4 with lodo techniques and BTB. I noticed the trub was much more compact than usually, and so more clear wort could be racked off as a nice side effect. Is this lodo, BTB, combination of the two?

Did you combine it with whirlfloc/ Irish moss? What do you mean by usual? Whirlfloc?
Thanks in advance

Sent from my SM-G930T using Tapatalk

Ah yes, I also used Supermoss. Was able to collect three liters of wort more than the previous brew, which admittedly contained a much larger amount of hops.

[duelerx]

I just ordered a 50 gram packet of BrewTan B from iBrew.com.au.

I use a Tower of Power recirculating system to brew 2.5gal BIAB batches. What would you recommend for my dosage?

I know the standard amount is 1/4tsp per 5gal in the strike water and 1/2tsp per 5gal in the boil. My mash volume varies based on my grain bill to get me to my target pre-boil volume, but it hovers around 5gal. As for other volumes:

I aim for 4.25gal pre-boil volume for a 60min boil & 4.75gal for a 90min boil. Post-boil I shoot for 3.25gal with 3gal going into the fermenter.

What I did I weight it in grams and scale it to the depending volume. If anyone can correct me if this is the correct procedure?.


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[homoeccentricus]

Of course that is correct. Here in Europe we despise people that use teaspoons to measure things

[yso191]

Of course that is correct. Here in Europe we despise people that use teaspoons to measure things

Despicable me...

[brewinhard]

I just ordered a 50 gram packet of BrewTan B from iBrew.com.au.

I use a Tower of Power recirculating system to brew 2.5gal BIAB batches. What would you recommend for my dosage?

I know the standard amount is 1/4tsp per 5gal in the strike water and 1/2tsp per 5gal in the boil. My mash volume varies based on my grain bill to get me to my target pre-boil volume, but it hovers around 5gal. As for other volumes:

I aim for 4.25gal pre-boil volume for a 60min boil & 4.75gal for a 90min boil. Post-boil I shoot for 3.25gal with 3gal going into the fermenter.

Proper dosing as I understand it is as follows...

1/4 tsp per every 5 gallons of strike water
1/4 tsp per every 5 gallons of mash water used
1/2 tsp with about 15 minutes left in boil prior to adding any clarifiers (irish moss, whirlfloc, etc) mixed with small amount of wort (1/2 cup or so) before adding back to boil.

[bboy9000]

What I did I weight it in grams and scale it to the depending volume. If anyone can correct me if this is the correct procedure?.


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Measuring mass is always better than measuring volume for mineral additions, hop additions, etc.

[mabrungard]

Mass is better than volume measurement when dealing with bulking materials that can create measurement errors. This is less of a problem when measuring materials that aren't fluffy or sticky, but getting into the habit of measuring in mass will always be more accurate.

[hafmpty]

Yep...I do most of my measurements in mass. My question/concern though is that I'm not ADDING extra water past the mash step. I'm not adding sparging water like most do. Most of the BTB will be bound up in the grain because I recirculate and will be lifted out when I pull my grain basket. Beyond that my boil isn't 5gal.

The recommendations Joe gives (stated in tsp measurements) vs. the stated measurements & calculations from the manufacturer are different. Denny wants to stick with Joe's recommendations. I'd like to try both. Maybe I'm thinking about this wrong.

Is it true to say...In the mash, I'm adding BTB with the expectation that most of the BTB will be left behind in the grain? Is it also true to say I'm then adding BTB to the boil with the expectation being I'll leave most of that behind in the trub? If that's the case, I'll calculate based on my volume of mash water and then at the end of the boil.

Sound correct?

Anyone have the grams per gallon recommendation from the manufacturer. I know it was posted on here earlier, but can't find the exact post.

[homoeccentricus]

8 grams per 120 liters in mash, 5 grams per 120 liters in boil.