Refractometer Reading

Northern Brewer General
1

I just racked my American Wheat beer to secondary after 11 days in primary. I took a reading with my refractometer. My OG was 1.041(10 brix %) and my current gravity is 1.020 or 5 brix %. How can i convert this to the current ABV?

Thanks,

Brent

2

[quote=“brentconn”]I just racked my American Wheat beer to secondary after 11 days in primary. I took a reading with my refractometer. My OG was 1.041(10 brix %) and my current gravity is 1.020 or 5 brix %. How can i convert this to the current ABV?

Thanks,

Brent[/quote]

Did you use a correction factor for the second reading? Once fermentation has begun, alcohol throws off refractometer readings and you have to correct for it.

3

I used this:

http://www.northernbrewer.com/refractometer-calculator/

According to this, my FG(so far) is 1.007

4

[quote=“brentconn”]I used this:

http://www.northernbrewer.com/refractometer-calculator/

According to this, my FG(so far) is 1.007[/quote]

Great! So, the ABV is (OG-FG)x.132. So, 41-7=34, 34x.132 = 4.488 or about 4.5%.

5

[quote=“Denny”][quote=“brentconn”]I used this:

http://www.northernbrewer.com/refractometer-calculator/

According to this, my FG(so far) is 1.007[/quote]

Great! So, the ABV is (OG-FG)x.132. So, 41-7=34, 34x.132 = 4.488 or about 4.5%.[/quote]
That’s sounds right to me. I will take one more reading before I keg.

Thanks!