Hey guys. I'm in the midst of my first all grain BIAB session. I'm finished with 90 min mash and am heating up. I checked gravity and I'm at 1.012. My starting gravity before pitching should be 1.047. Should I expect that to rise as I boil off about two gallons?

frydogbrews said:

i wouldn't think that much.

you do iodine test?

No.

well, when done if your FG is still low, kick that shit up with some honey

or poorly crushed

Grain is newly bought from store. I ground it at the store too.

that's what i do

Benvarine said:

frydogbrews said:

points shmoints! just add three pounds and move on!

Three lbs? Nice. I'm just wondering if I should add some DME.

i'm too far gone to give good advice, other than the three pounds. that's for real.

Benvarine said:

frydogbrews said:

points shmoints! just add three pounds and move on!

Three lbs? Nice. I'm just wondering if I should add some DME.

add it at flame out to make up whatever gravity points you lost due to efficiency.

FromZwolle said:

Benvarine said:

frydogbrews said:

points shmoints! just add three pounds and move on!

Three lbs? Nice. I'm just wondering if I should add some DME.

add it at flame out to make up whatever gravity points you lost due to efficiency.

How do I figure how much to add?

Benvarine said:

FromZwolle said:

Benvarine said:

frydogbrews said:

points shmoints! just add three pounds and move on!

Three lbs? Nice. I'm just wondering if I should add some DME.

add it at flame out to make up whatever gravity points you lost due to efficiency.

How do I figure how much to add?

what is your expected volume and gravity post boil at this point?

FromZwolle said:

C_dubbs said:

Benvarine said:

Hey guys. I'm in the midst of my first all grain BIAB session. I'm finished with 90 min mash and am heating up. I checked gravity and I'm at 1.012. My starting gravity before pitching should be 1.047. Should I expect that to rise as I boil off about two gallons?

That far off is no bueno. Something has to be wrong. Mash temp, gravity reading, something.

i'm inclined to say it's an issue with sparging.

No sparging. BIAB. I raised temp from 150 to 162 before pulling the bag. Heated slowly, took about 15 minutes. Two thermometers. Should I add DME?

Expected volume 6.5 gallons. 1.047

Benvarine said:

Expected volume 6.5 gallons. 1.047

and you're at 1.012 now with 6.5 gallons?

FromZwolle said:

Benvarine said:

Expected volume 6.5 gallons. 1.047

and you're at 1.012 now with 6.5 gallons?

No, I was at around 8 gallons at 1.029. I will be at 6.5, ideally.

FromZwolle said:

Benvarine said:

FromZwolle said:

C_dubbs said:

Benvarine said:

Hey guys. I'm in the midst of my first all grain BIAB session. I'm finished with 90 min mash and am heating up. I checked gravity and I'm at 1.012. My starting gravity before pitching should be 1.047. Should I expect that to rise as I boil off about two gallons?

That far off is no bueno. Something has to be wrong. Mash temp, gravity reading, something.

i'm inclined to say it's an issue with sparging.

No sparging. BIAB. I raised temp from 150 to 162 before pulling the bag. Heated slowly, took about 15 minutes. Two thermometers. Should I add DME?

i see. there are biab techniques that do include sparging. they increase the mash efficiency quite a bit.

You are correct. I jumped the gun on assuming he was doing BIAB was no sparge.

Benvarine said:

FromZwolle said:

Benvarine said:

Expected volume 6.5 gallons. 1.047

and you're at 1.012 now with 6.5 gallons?

No, I was at around 8 gallons at 1.029. I will be at 6.5, ideally.

Now I'm confused. Tell me what volume and gravity you are at and what gravity and volume you want to be at post boil.

C_dubbs said:

Benvarine said:

FromZwolle said:

Benvarine said:

Expected volume 6.5 gallons. 1.047

and you're at 1.012 now with 6.5 gallons?

No, I was at around 8 gallons at 1.029. I will be at 6.5, ideally.

Now I'm confused. Tell me what volume and gravity you are at and what gravity and volume you want to be at post boil.

if i'm reading this correctly, he should be at 6.5 gallons of 1.035 wort post boil and will need to boost it .012 points to get to 1.047

Benvarine said:

Benvarine said:

Hey guys. I'm in the midst of my first all grain BIAB session. I'm finished with 90 min mash and am heating up. I checked gravity and I'm at 1.012. My starting gravity before pitching should be 1.047. Should I expect that to rise as I boil off about two gallons?

Here was my first post

are you boiling already?

FromZwolle said:

Benvarine said:

Benvarine said:

Hey guys. I'm in the midst of my first all grain BIAB session. I'm finished with 90 min mash and am heating up. I checked gravity and I'm at 1.012. My starting gravity before pitching should be 1.047. Should I expect that to rise as I boil off about two gallons?

Here was my first post

are you boiling already?

Yes, about 30 min into a 90

FromZwolle said:

C_dubbs said:

Benvarine said:

FromZwolle said:

Benvarine said:

Expected volume 6.5 gallons. 1.047

and you're at 1.012 now with 6.5 gallons?

No, I was at around 8 gallons at 1.029. I will be at 6.5, ideally.

Now I'm confused. Tell me what volume and gravity you are at and what gravity and volume you want to be at post boil.

if i'm reading this correctly, he should be at 6.5 gallons of 1.035 wort post boil and will need to boost it .012 points to get to 1.047

To go 12 points up in 6.5 gallons is going to be ~2 pounds of DME.

Benvarine said:

Sweet. If I get to the end of my boil, know volume and SG at that time and am low, what is the formula to get it to my target?

I'm on mobile so I can't pull up the thread bit there is one out there. Basically gravity points turned into a whole number (1.012 would be 12 points) times the volume equals total batch points. Compare the expected to the actual using the same formula and divide the difference by 40 (DME's average oints per gallon). Confusing?

C_dubbs said:

FromZwolle said:

ok, assuming that preboil gravity was at 1.012 at 8 gallons, you would have needed to add ~6# of dme to get it to 1.038, which would put you at 6.5 gallons of 1.047 wort post boil.

those are your target numbers, correct?

have you started adding hops yet, because gravity will affect your utilization and throw off your ibus.

FromZwolle said:

ok, assuming that preboil gravity was at 1.012 at 8 gallons, you would have needed to add ~6# of dme to get it to 1.038, which would put you at 6.5 gallons of 1.047 wort post boil.

those are your target numbers, correct?

have you started adding hops yet, because gravity will affect your utilization and throw off your ibus.

Oh nice FZ... IBUs hadn't even crossed my mind.

i figured the gravity issue should be dealt with first, but as this is a live event, urrything has to happen at once.

FromZwolle said:

C_dubbs said:

FromZwolle said:

ok, assuming that preboil gravity was at 1.012 at 8 gallons, you would have needed to add ~6# of dme to get it to 1.038, which would put you at 6.5 gallons of 1.047 wort post boil.

those are your target numbers, correct?

have you started adding hops yet, because gravity will affect your utilization and throw off your ibus.

FromZwolle said:

ok, assuming that preboil gravity was at 1.012 at 8 gallons, you would have needed to add ~6# of dme to get it to 1.038, which would put you at 6.5 gallons of 1.047 wort post boil.

those are your target numbers, correct?

have you started adding hops yet, because gravity will affect your utilization and throw off your ibus.

Oh nice FZ... IBUs hadn't even crossed my mind.

i figured the gravity issue should be dealt with first, but as this is a live event, urrything has to happen at once.

Just dump stuff in, You've made beer before it's not hard.

Benvarine said:

I f'd up one number. I was actually at 1.029. I forgot to account for temp. I converted it but when I originally posted I wrote down the reading without being converted. I already added my first hops. I learning a lot from this, so it's awesome regardless of the outcome. And you guys rock.

Just dump in 2 pounds right now. That's the happy median and your IBUs won't be totally jacked up.

C_dubbs said:

Benvarine said:

I f'd up one number. I was actually at 1.029. I forgot to account for temp. I converted it but when I originally posted I wrote down the reading without being converted. I already added my first hops. I learning a lot from this, so it's awesome regardless of the outcome. And you guys rock.

Just dump in 2 pounds right now. That's the happy median and your IBUs won't be totally jacked up.

Unless you want them a little jacked...

Dr_Jerryrigger said:

C_dubbs said:

Benvarine said:

I f'd up one number. I was actually at 1.029. I forgot to account for temp. I converted it but when I originally posted I wrote down the reading without being converted. I already added my first hops. I learning a lot from this, so it's awesome regardless of the outcome. And you guys rock.

Just dump in 2 pounds right now. That's the happy median and your IBUs won't be totally jacked up.

Unless you want them a little jacked...

it's not fry, he probably doesn't want 9% abv hop water.

C_dubbs said:

Benvarine said:

I f'd up one number. I was actually at 1.029. I forgot to account for temp. I converted it but when I originally posted I wrote down the reading without being converted. I already added my first hops. I learning a lot from this, so it's awesome regardless of the outcome. And you guys rock.

Just dump in 2 pounds right now. That's the happy median and your IBUs won't be totally jacked up.

3 pounds! why is no one listening?

C_dubbs said:

FromZwolle said:

C_dubbs said:

Benvarine said:

I f'd up one number. I was actually at 1.029. I forgot to account for temp. I converted it but when I originally posted I wrote down the reading without being converted. I already added my first hops. I learning a lot from this, so it's awesome regardless of the outcome. And you guys rock.

Just dump in 2 pounds right now. That's the happy median and your IBUs won't be totally jacked up.

yes, but do it my way so you don't get clumps and subsequent scorching.

This. Do this.

wooo! last minute brewing adjustments. i haven't done this in a while.

FromZwolle said:

C_dubbs said:

FromZwolle said:

C_dubbs said:

Benvarine said:

I f'd up one number. I was actually at 1.029. I forgot to account for temp. I converted it but when I originally posted I wrote down the reading without being converted. I already added my first hops. I learning a lot from this, so it's awesome regardless of the outcome. And you guys rock.

Just dump in 2 pounds right now. That's the happy median and your IBUs won't be totally jacked up.

yes, but do it my way so you don't get clumps and subsequent scorching.

This. Do this.

wooo! last minute brewing adjustments. i haven't done this in a while.

Nor have I, but that's because it's not an adjustment if you don't start with a plan.

FromZwolle said:

Dr_Jerryrigger said:

FromZwolle said:

C_dubbs said:

FromZwolle said:

C_dubbs said:

Benvarine said:

I f'd up one number. I was actually at 1.029. I forgot to account for temp. I converted it but when I originally posted I wrote down the reading without being converted. I already added my first hops. I learning a lot from this, so it's awesome regardless of the outcome. And you guys rock.

Just dump in 2 pounds right now. That's the happy median and your IBUs won't be totally jacked up.

yes, but do it my way so you don't get clumps and subsequent scorching.

This. Do this.

wooo! last minute brewing adjustments. i haven't done this in a while.

Nor have I, but that's because it's not an adjustment if you don't start with a plan.

i'm just too tuned into my system. i don't even measure water volumes or calculate temps anymore, but i almost always hit my targets.

Me too. I don't even weigh things out.

Dr_Jerryrigger said:

FromZwolle said:

Dr_Jerryrigger said:

FromZwolle said:

C_dubbs said:

FromZwolle said:

C_dubbs said:

Benvarine said:

I f'd up one number. I was actually at 1.029. I forgot to account for temp. I converted it but when I originally posted I wrote down the reading without being converted. I already added my first hops. I learning a lot from this, so it's awesome regardless of the outcome. And you guys rock.

Just dump in 2 pounds right now. That's the happy median and your IBUs won't be totally jacked up.

yes, but do it my way so you don't get clumps and subsequent scorching.

This. Do this.

wooo! last minute brewing adjustments. i haven't done this in a while.

Nor have I, but that's because it's not an adjustment if you don't start with a plan.

i'm just too tuned into my system. i don't even measure water volumes or calculate temps anymore, but i almost always hit my targets.

Me too. I don't even weigh things out.

i still weigh out my grains and hops. i could probably get really close just by sight at this point, but i still use the scale just because.

FromZwolle said:

Dr_Jerryrigger said:

FromZwolle said:

Dr_Jerryrigger said:

FromZwolle said:

C_dubbs said:

FromZwolle said:

C_dubbs said:

Benvarine said:

I f'd up one number. I was actually at 1.029. I forgot to account for temp. I converted it but when I originally posted I wrote down the reading without being converted. I already added my first hops. I learning a lot from this, so it's awesome regardless of the outcome. And you guys rock.

Just dump in 2 pounds right now. That's the happy median and your IBUs won't be totally jacked up.

yes, but do it my way so you don't get clumps and subsequent scorching.

This. Do this.

wooo! last minute brewing adjustments. i haven't done this in a while.

Nor have I, but that's because it's not an adjustment if you don't start with a plan.

i'm just too tuned into my system. i don't even measure water volumes or calculate temps anymore, but i almost always hit my targets.

Me too. I don't even weigh things out.

i still weigh out my grains and hops. i could probably get really close just by sight at this point, but i still use the scale just because.

if you aren't trying to have a repeatable process/product then it doesnt really matter.

i like to know what i did (or did wrong)

FromZwolle said:

Benvarine said:

Lakewood said:

Benvarine said:

FromZwolle said:

Benvarine said:

frydogbrews said:

points shmoints! just add three pounds and move on!

Three lbs? Nice. I'm just wondering if I should add some DME.

add it at flame out to make up whatever gravity points you lost due to efficiency.

How do I figure how much to add?

Ben, when you pulled the grain bag out did you hang it above the kettle to let it drain really well? also, you can pour the top off water through the hanging grain bag to get a psuedo sparge.

sounds a little late at this point, but definitely want to do that next time.

I did hang the bag. Didn't top up, started with all the water I needed. I just added 1.5 lbs of DME. Its all I had. I took photos, was planning a thread, I'll see how all this turns out.

was the 1.047 with or without the honey addition?

Sounded like beer smith says with. Which blows up my math. But makes the 1.5 lbs he added closer to right.

Benvarine said:

Damn. Final is 1.057. Guess the DME was overkill. Should have left it out.

That's not that far off is it? Also a good SG for most beer

Benvarine said:

Damn. Final is 1.057. Guess the DME was overkill. Should have left it out.

how much honey did you add? and what was the final volume? that seems a little high for 1.5# of dme added in.

Benvarine said:

Final volume around 5.5, added 12 oz honey. Put 5 in fermentor. I should not have added the DME. I would have been much closer to my target. I'll brew again in a few weeks and see what happens without adding DME. It is a good learning process and a totally new process and rig setup for me.

I am thoroughly confused about this whole deal then....

Lakewood said:

My guess is that the initial reading was a mis-read due to hot wort that hadn't been boied down, and may have even had some stratification in the kettle.

yeah, this is the main take home point i think. tasking readings on hot wort on the scale of the average homebrewer and trying to use the equations to act for the heat is a minefield of problems.....largest being sediment layering (stratification) which is kind of impossible to avoid at that stage in a 5-7 gallon batch.

a refractometer kind of helps here, but not entirely

C_dubbs said:

Another take home point here is to trust your system and don't freak out.

yeah, pretty much, dont freak out while brewing... ever. it's never a big deal, and you almost always end up with beer.