#### HomeBrew

##### Junior

Hello, I have yet to start my first homebrew but I have got 90% of the equipment and powders.

I'm still finding conflicting info on how much sugar creates what ABV.

I worked out my hydrometer scale matches up with the 17g of sugar per liter that's advised to add each 1% of ABV.

I made a spreadsheet that calculates it. If I put 4L of juice in the calc and the sugar that's already in the juice, then tell it I want 18% ABV, it's telling me to add 797g of sugar. I setup the calc to use the 17g sugar per liter for 1% ABV rule.

That 797g is nearly the same as the 800g I have often seen in wine making guides - but won't that produce an ABV more like 12% or 13% when added to 4L of juice?

I have seen a post saying 4.5L of juice needs 1200g sugar adding to achieve 18% but, that's more like 37g of sugar per liter once the 480g already in the juice, is factored in. My calc says to add 900g to 4.5L to create an ABV of 18% (1377g sugar total) so it's quite far short of the 480g +1200g I have seen elsewhere. Plot thickens!

Once I do a hydrometer reading before and after I'll tweak the calc. The yeast being used is a super "high alcohol" one, but it's not turbo or anything.

The calc:

I'm still finding conflicting info on how much sugar creates what ABV.

I worked out my hydrometer scale matches up with the 17g of sugar per liter that's advised to add each 1% of ABV.

I made a spreadsheet that calculates it. If I put 4L of juice in the calc and the sugar that's already in the juice, then tell it I want 18% ABV, it's telling me to add 797g of sugar. I setup the calc to use the 17g sugar per liter for 1% ABV rule.

That 797g is nearly the same as the 800g I have often seen in wine making guides - but won't that produce an ABV more like 12% or 13% when added to 4L of juice?

I have seen a post saying 4.5L of juice needs 1200g sugar adding to achieve 18% but, that's more like 37g of sugar per liter once the 480g already in the juice, is factored in. My calc says to add 900g to 4.5L to create an ABV of 18% (1377g sugar total) so it's quite far short of the 480g +1200g I have seen elsewhere. Plot thickens!

Once I do a hydrometer reading before and after I'll tweak the calc. The yeast being used is a super "high alcohol" one, but it's not turbo or anything.

The calc:

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