Refractometer confusion
Hi guys.
Today I got a refractometer and tested it on a batch which just finished fermenting. Confusingly, my hydrometer read 1.011 gravity while the refractometer read 1.030.
I calibrated it with water and all, and it reads water just fine at 1.000. Is this normal and I just have to compensate with beersmith or is there something up with the refractometer?
Replies to This Discussion
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Permalink Reply by Reviled on
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The alcohol confuses the reading on the refractometer afaik, but doesnt beersmith have a tool where you can enter some details and it comes up with the true reading?
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Permalink Reply by JoKing on
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Use this sheet - it's got the alcohol / sugar formula all added in there.
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refractbeer.xls, 406 KB
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Permalink Reply by JackoNZ on
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Beersmith -> Tools -> Refractometer Tool
Has some nice conversion stuff in there too.
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Permalink Reply by Soren on
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alcohol messes up your readings, in my experience, to get an accurate reading you can only really use the refrac before the ferment. there are conversion charts and most brewing software will give you a 'real' number based on your refrac readings but I find they are not very accurate at all. good old hydrometer is best once the yeast have started...
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Permalink Reply by David Wood on
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Cool, thanks guys. Can't wait to brew this Sunday and use it properly!
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