What would this do to my gavity in secondary? - Home Brew Forums

 Home Brew Forums > What would this do to my gavity in secondary?

04-14-2012, 11:26 PM   #1
caps_phisto
Recipes

Jan 2012
Posts: 41
Liked 4 Times on 4 Posts

I used the NB Am All-grain kit but also purchased this cherry puree http://www.northernbrewer.com/shop/o...rry-puree.html for secondary. The side of the can states that this puree has a gravity of 1.092-1.115 but it doesn't give a dilution ratio. Does anyone know how this will affect my overall gravity for the batch. I'm assuming it will raise it, but I would like to know by how much so I can calc ABV.

04-14-2012, 11:44 PM   #2
mbobhat

Recipes

Sep 2011
Bremerton, Washington
Posts: 460
Liked 57 Times on 41 Posts

There is a calculator here:

http://www.gordonengland.co.uk/conversion/density.htm

Gravity of 1.1 means that is the mass of the sample/ mass of water in the same units. So (its been awhile since I've had to do this math)

every mL you add (since a mL = 1 gram for pure water) you are adding 0.1 grams of sugar to the mix.

04-15-2012, 12:06 AM   #3
caps_phisto
Recipes

Jan 2012
Posts: 41
Liked 4 Times on 4 Posts

So using that calc I put in my starting gravity of 1.054. That leads to ~8.7lbs of sugar per US gallon. I took that with the ~9.1 lbs for the puree @ 1.092. I combined the two pound amounts and reclaculated which leads to a SG of ~2.1?! Does that sound right? Is that how that page is supposed to function?

04-15-2012, 12:18 AM   #4
mbobhat

Recipes

Sep 2011
Bremerton, Washington
Posts: 460
Liked 57 Times on 41 Posts

Sorry my mistake, my numbers are off. Only .1 grams sugar in a 1.1 SG solution, so every ml you add gives roughly .1 gram sugar.

04-15-2012, 12:20 AM   #5
mbobhat

Recipes

Sep 2011
Bremerton, Washington
Posts: 460
Liked 57 Times on 41 Posts

Do you know what you want your original gravity to be? or do you know how much you are adding to the secondary? If the whole can what is the volume?

04-15-2012, 12:26 AM   #6
mbobhat

Recipes

Sep 2011
Bremerton, Washington
Posts: 460
Liked 57 Times on 41 Posts

So I saw that the can weighs 1.39kg. using an sg of 1.092, means that you have 1.27kg water, and the remaining is 0.12 kg dissolved sugar. Thats 120 grams sugar in one can.

That makes more sense

04-15-2012, 01:23 AM   #7
caps_phisto
Recipes

Jan 2012
Posts: 41
Liked 4 Times on 4 Posts

My starting grav is 1.054 (92% efficient) I plan on adding the whole can. Just wondering what my final ABV would be as it's not the straight OG/FG model I'm used to.

04-15-2012, 02:17 AM   #8
mbobhat

Recipes

Sep 2011
Bremerton, Washington
Posts: 460
Liked 57 Times on 41 Posts

Your new gravity will be around 1.056-1.057 because of the 120 gram sugar addition of the cherry stuff.

Therefore it wont affect it that much, there is not that much volume so all that sugar gets diluted in your 5 gallon batch.

You can calculate ABV from the many calculators when you get your final gravity before you bottle. Keep in mind though that adding priming sugar usually raises it a half percent or so also.