Calculation for ABV and SG- Back Sweetening

[FuzzBeckersHB]

Quick question, I have a 5 gallon batch of cider done and ready for back sweetening. Used Notty, FG 1.001 ish, and AbV in the 8's. I want to add 1 gallon of cider to sweeten. Does someone have a formula to find ABV and SG after adding 1 gallon of cider to 5 gallons finished hard cider?
Thanks in advance
FBHB

 

[atmfuge]

Are you planning on carbonating in bottles or just killing the yeast ad sweetening? If you kill the yeast and just add more unfermented cider the new ABV would be around 6.7% based on the current ABV (only the total volume would change and not the amount of alcohol).
If you don't kill the yeast, fermentation would start again and you would need to measure a new OG and FG.
I hope this answers your question adequately.

 

[FuzzBeckersHB]

Are you planning on carbonating in bottles or just killing the yeast ad sweetening? If you kill the yeast and just add more unfermented cider the new ABV would be around 6.7% based on the current ABV (only the total volume would change and not the amount of alcohol).
If you don't kill the yeast, fermentation would start again and you would need to measure a new OG and FG.
I hope this answers your question adequately.

Atmfuge, I am going to force carb in a corny, and I have already added k met, and sorbate to take care of the yeast. I was going to put the 5 gallons of hard cider in a bottling bucket and add the 1 gallon cider to it, lightly stir, check flavor, purge with co2 a clean and sanitized corny, then slow fill from the bottom, corny from bottling bucket. Then carb, and put in keezer. Then just bottle remaining gallon as still cider. What do you think?
Thank FBHB

 

[atmfuge]

Atmfuge, I am going to force carb in a corny, and I have already added k met, and sorbate to take care of the yeast. I was going to put the 5 gallons of hard cider in a bottling bucket and add the 1 gallon cider to it, lightly stir, check flavor, purge with co2 a clean and sanitized corny, then slow fill from the bottom, corny from bottling bucket. Then carb, and put in keezer. Then just bottle remaining gallon as still cider. What do you think?
Thank FBHB

That sounds like a plan. You can really do whatever you want since you killed the yeast. Stil, adding any volume of unfermented juice will reduce your ABV. An alternative, although I haven't ever tried it, but a lot of people recommend it, would be using frozen apple juice concentrate (FAJC) for back sweetening. That way you will not dilute your cider as much and retain something closer to your current ABV. Again, I have never tried using (FAJC) but a lot of people maintain that it is the best way to provide sweetness and apple flavor. If I had a keg setup that is what I would probably do.

I wish I had a kegging set up it would make life a lot more simple. I'm still trying to find a way to bottle carb with FAJC without the need to cold crash or pasteurize before ending up with bottle bombs.

 

[FuzzBeckersHB]

That sounds like a plan. You can really do whatever you want since you killed the yeast. Stil, adding any volume of unfermented juice will reduce your ABV. An alternative, although I haven't ever tried it, but a lot of people recommend it, would be using frozen apple juice concentrate (FAJC) for back sweetening. That way you will not dilute your cider as much and retain something closer to your current ABV. Again, I have never tried using (FAJC) but a lot of people maintain that it is the best way to provide sweetness and apple flavor. If I had a keg setup that is what I would probably do.

I wish I had a kegging set up it would make life a lot more simple. I'm still trying to find a way to bottle carb with FAJC without the need to cold crash or pasteurize before ending up with bottle bombs.

Cool, thanks , I will consider the FAJC. The keg set up is sweet. Once you get your beer or cider at the carb level you want, just bottle it off the keg. We did a Graff like this and it turned out fantastic. No worry of bottle bombs.., it just makes it easier for you to get the right flavor, force carb, and bottle...done.

Thanks for the response..
FBHB