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Am I reading between the lines correctly that the refractometer calculator in BeerSmith may be inaccurate when calculating fermented/ing wort?
It is a 10% solution, so 90 gr water and 10 gr sugar.
Quote from: yso191 on January 23, 2014, 09:16:23 amAm I reading between the lines correctly that the refractometer calculator in BeerSmith may be inaccurate when calculating fermented/ing wort?once i got my correction factor adjusted through some trial/error, mine has never been off my hydrometer. I do both on occasion and they always match within .01 gravity points. and this has been the same through 3 hydrometers over the years.not sure why some folks have problems. starting to think its guys who wear glasses or something...
Quote from: blatz on January 23, 2014, 09:30:23 amQuote from: yso191 on January 23, 2014, 09:16:23 amAm I reading between the lines correctly that the refractometer calculator in BeerSmith may be inaccurate when calculating fermented/ing wort?once i got my correction factor adjusted through some trial/error, mine has never been off my hydrometer. I do both on occasion and they always match within .01 gravity points. and this has been the same through 3 hydrometers over the years.not sure why some folks have problems. starting to think its guys who wear glasses or something...What correction factor do you use?
Got any tips on calibration and use?
Did you happen to use Rahr Pilsner malt as your base grain? It's thought to be pre-acidified by the maltster, causing its acidity contribution to the mash to be greater than other base malts. That could result in better attenuation than expected.
Sean, do you have a link to a good set of pro brewer level hydrometers?
Quote from: Pinski on January 23, 2014, 10:34:49 amQuote from: blatz on January 23, 2014, 09:30:23 amQuote from: yso191 on January 23, 2014, 09:16:23 amAm I reading between the lines correctly that the refractometer calculator in BeerSmith may be inaccurate when calculating fermented/ing wort?once i got my correction factor adjusted through some trial/error, mine has never been off my hydrometer. I do both on occasion and they always match within .01 gravity points. and this has been the same through 3 hydrometers over the years.not sure why some folks have problems. starting to think its guys who wear glasses or something...What correction factor do you use?1.00386
Quote from: Jeff M on January 23, 2014, 05:04:32 pmSean, do you have a link to a good set of pro brewer level hydrometers?Any decent supplier will carry them as a set of three. They're large (~16" long) for high precision, generally cover something like 0-8, 8-16, and 16-24°P, and have a thermometer and correction scale. Just an example: http://www.gwkent.com/plato-hydrometers-with-build-inthermometer.html If you have a Foxx account, theirs are about half the price.I have one of these and it's nice, but annoying since it's only marked in SG. They're more delicate than the "pro" ones and not as large: http://www.williamsbrewing.com/BREWERS-EDGE-BOTTLING-HYDROMETER-P529C74.aspx