Calculating ABV of Cider with apple juice

[Diggles]

Has anyone any guidance on calculating the ABV of a cider when you've added 4L of apple juice? My recipe called for :
1 tin of black rock
1 kg dextrose
4L of apple juice (no preservatives etc)
zest and juice of 2 limes

Measured OG is 1.060, so the question is how much fermentables does the apple juice add and the finished ABV?

Diggles

 

[GalBrew]

Just wait for it to hit its FG and calculate ABV as you would for anything else.

 

[Diggles]

Sorry, should have been a bit clearer. I'm after some guideance as to calculate the anticipated ABV.

Diggles

 

[bum]

There's lots of ABV calculators online. They mostly seem to all produce somewhat different results so have a google and see which one you like best. All you need to know is your OG and FG.

 

[stux]

cider finishes at 0.998 if all goes well.

it should start at about 1.050-60 or so, you should've measured with a hydrometer before pitching yeast

http://pint.com.au/calculators/alcohol

will help you calculate it

(ps: i haven't verified this calculator)

 

[Rodolphe01]

I worked out that 4L of juice would add ~1% ABV assuming you did a 23L batch. I based this on the juice I recently used having an OG of 1.043 and assuming it finishes at 1.000.

If you did 23L batch, are you sure your OG was 1.060? A quick internet search shows blackrock cider + 1kg of dex coming in at between 1.042-1.044. The juice then adds about 1.008 (in 23L).

 

[Diggles]

I worked out that 4L of juice would add ~1% ABV assuming you did a 23L batch. I based this on the juice I recently used having an OG of 1.043 and assuming it finishes at 1.000.

If you did 23L batch, are you sure your OG was 1.060? A quick internet search shows blackrock cider + 1kg of dex coming in at between 1.042-1.044. The juice then adds about 1.008 (in 23L).

Tripple checked the hydro and got 1.060 every time. Got the purest juicy I could get ($4/L). This means the juice in my 23 L batch added 1.016 point. Yeast is champagne yeast E-1118 ( not sre of the number, but is the Evellin one, hoping it will cope! Time will tell I suppose.

Diggles

 

[Deep End]

Your Gravity got me wondering too, I just put down a Brigalow Cider, 1kg of Sugar and 4 litres of apple juice, its an 18 litre brew and my starting gravity was 1043??