Measuring the actual density of fermenting wort with a refractometer

[Gustatorian]

Is there a way to get an actual gravity reading with a refractometer on a beer that is already in the process of fermenting? I have the OG readings from a hydrometer and refractometer – can I use that info to find the current gravity with the a sample placed on the refractometer?

 

[AZCoolerBrewer]

yes and no. There are calculators that can help you make an estimate and depending on the trouble you go to, your estimate can be more accurate. The best information to have when you make the estimate is the profile curve of the type of beer you have.

This is a popular calculator http://seanterrill.com/2012/01/06/refractometer-calculator/

 

[Gustatorian]

yes and no. There are calculators that can help you make an estimate and depending on the trouble you go to, your estimate can be more accurate. The best information to have when you make the estimate is the profile curve of the type of beer you have.

This is a popular calculator http://seanterrill.com/2012/01/06/refractometer-calculator/

Thanks! What is the wort correction factor?

 

[AZCoolerBrewer]

That's the style curve I had mentioned. If you go to some of the links on the page I think he gives some ballpark figures for certain beers, but in the end for you to be accurate, you need to get to know your wort correction for your own beers.