Overshot OG ... Can I add boiled water after fermentation?

Post #1 made 10 years ago
In my latest brew I overshot the OG pretty much (target OG 1.056, my OG was 1.085 :-)). Lots of reasons for this, ha ha, but mostly to the fact that I am still a noob-brewer :-)! The estimated VIF was 17,5 liters, but I ended up with 15 liters.

Has anybody any experience in diluting the beer after 14-day fermentation? I imagine the water need to be boiled (of course), and when I create my sugar syrup for bottle carbonation, I usually use approx 300 ml for a 25 liter batch. What if I use much more water, like 2,5 liter?
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Overshot OG ... Can I add boiled water after fermentation?

Post #2 made 10 years ago
You can dilute after fermentation and my understanding is that this is common practice in commercial brewing. I've done it a few times with good results when I have overshot my gravity.

There's a simple formula that will let you know how much water to add to hit a target gravity. For the gravity numbers just use the number after the decimal point.

G1xV1=G2xV2
85x15=56xV2
V2=85x15/56
V2=22.77

So you could actually add 7 or 8 litres and be back at your target gravity.

You do need to consider how this will effect your IBU:OG ratio though.
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