Final gravity below 1.010

[thyirishmen]

So I brewed up a Irish red with a OG of 1.058 and was supposed to end around 1.010. It had some pale malt cararoma and melanodian. Also 1 lb of honey at flame out.

I had a started of wyeast 1056 and had 130% roughfully of what I needed based on starter Calc.

My recipe was made in beer tools and set with 77% attenuation which is 1058 high from their site.
Mash was 151 and I do bath sparge.

It was brewed on 6/22 and I have been using my tilt to track the gravity and confirmed with my hydro it was 1.058. Now 4 days later the tilt is showing 1.008 gravity. It has been fermenting at 65 using brewpi/fermentrack and holding to 65.01 degrees.

All my equipment is SS and I'm very meticulous in my cleaning and using pbw and star San. I don't believe it's infected its in SS brew bucket so I can see inside. I have not opened it since pitching the yeast.

Now beertools said that my attenuation is 87% based on these gravity and I don't see how it's possible without an infection eating it down too. Unless the 1lb of honey did not factor in the recipe in beertools since it's highly fermentable.

 

[mirthfuldragon]

Your Tilt is probably wrong. Mine always reads low for FG. Check it with a hydrometer. Also, make sure to add in the calibration points on the Tilt when you get a hydrometer reading.

And confirm your hydrometer in distilled water, and your Tilt too while you are at it.

 

[thyirishmen]

Your Tilt is probably wrong. Mine always reads low for FG. Check it with a hydrometer. Also, make sure to add in the calibration points on the Tilt when you get a hydrometer reading.

And confirm your hydrometer in distilled water, and your Tilt too while you are at it.

I have confirmed the hydro in distilled water at 60 or 65 whatever mine says and it was 1.000

 

[thyirishmen]

I have confirmed the hydro in distilled water at 60 or 65 whatever mine says and it was 1.000

I will wait and take a sample from fermentor and check with hydro

 

[schematix]

1056 can chew through a beer, 80% AA pretty easily. Add your 100% fermentable honey and you're in the ballpark.

I don't trust anything but a precision hydrometer for a final gravity measurements.

 

[thyirishmen]

I will confirm it with my hydro too I just wanted to see with 1056 if this is possible with honey too or if it's definatly not and either wrong gravity readings or infection.

 

[schematix]

I regularly make a ~1.055-1.060 IPA that is about 97% 2-row and 3% of some crystal using US-05 (almost same strain). It usually clocks in at 85-88 AA%.

 

[Upthewazzu]

Getting below 1.010 with 1056 is pretty easy in my experience. It almost always overshoots the target FG. I recently mashed an IPA at 152° and it ended at exactly 1.010. Usually I mash that recipe at 149° and it ends up around 1.009 or 1.008.

 

[kh54s10]

Any yeast can ferment below a predicted FG since it is just that, a prediction. The yeast will keep working until they consume all the sugars that they can.

 

[mirthfuldragon]

I just went and check my Tilt's logs. My last FG was reported at 1.013 and the actual measured FG with a verified hydrometer was 1.020. I keep meaning to contact the Tilt people about it, and I try to remember to add calibration points, but it is what it is.

 

[turbo 6]

I have two tilts that always read within 1-2 points of what my hydrometer reads. I always check FG with the hydrometer, and use the tilts to see when gravity stops changing. Also the thermometer helps a lot with temperature control.

 

[thyirishmen]

I have two tilts that always read within 1-2 points of what my hydrometer reads. I always check FG with the hydrometer, and use the tilts to see when gravity stops changing. Also the thermometer helps a lot with temperature control.

Yeah the tilt OG reading was same as my verified hydrometer. So maybe it's just the tilt that is off. I'll confirm with a sample to the hydro.

 

[thyirishmen]

Yeah the tilt OG reading was same as my verified hydrometer. So maybe it's just the tilt that is off. I'll confirm with a sample to the hydro.

I mainly want the tilt for og and to verify if fermentation is done after a few days then I'll verify either way with hydro when kegging.

 

[BrewZer]

My last batch with W1056 went to 1.008 FG, so I don't think it's that unusual.

 

[thyirishmen]

I have two tilts that always read within 1-2 points of what my hydrometer reads. I always check FG with the hydrometer, and use the tilts to see when gravity stops changing. Also the thermometer helps a lot with temperature control.

I believe that the tilt. Claims accuracy to within 1.002. So that would make it spot on.

 

[thyirishmen]

I took the sample and i tasted it too and it does not taste bad at all. but now today it is at 1.004 i just cant figure out if its infected or something or if its really just the 1LB of honey and my ramped up 1056 chowing down. This is day 5 of fermentation.

 

[thyirishmen]

I checked on it just to see since it's in SS brew bucket havent seen it
The clump to top right is the tilt.

 

[Comfort_Zone]

Looks fine to me. I don't take too much stock in predicted numbers. That beer doesn't look infected to me.

 

[kh54s10]

Looks OK to me also. Though if the gravity continues to drop that is concerning. I guess at 5 days and that low is cause for some concern. But I would seal that back up and leave it alone for another 10 days.

 

[thyirishmen]

so it has dropped down to 1.002 and has been this way for over a day and half. so it went from 1.058 to 1.006 in 4 days and in one day from 6 to 2 and now its been here for good so far. I took a sample and tested with my hydro and this tilt is correct and i had used distilled and 60* with my hydro too and its correct.

Maybe this yeast was a beast and all of the honey it just dropped so far. i tasted it and yes its dry and light, but has good flavor and so far no odd flavor and its still young. I will keep it on for a total of 14 days to see if it changes.

 

[burntchef]

I have a porter that is currently ripping through it's sugar. I had an og of 1.050 and at day 4 it was 1.010. I opted to let it do it's thing and see where it ends up. I used a starter for the first time made with wl1007 and mashed a bit low at 138.
Eric