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Discussion in 'Kit Winemaking' started by VJI324, Feb 13, 2020 at 8:08 PM.
Does anyone know the brix of the typical fpac in a Winexpert kit?
Can't say that I've ever checked, but I imagine it would be a little tricky to do. My refractometer only goes up to 36 BRIX, and I imagine it's a lot higher than that, and probably to viscous to use your hydrometer, and it's probably off of that scale too. You'd probably have to use a known quantity of fpack and water to thin it out to get a reading, and then convert it back.
Based on my past experience, the fpack typically raises the SG of 6 gallons of must around SG .015. Working backwards from there on Fermcalc, using starting SG of 1.090, and final SG of 1.105 (an increase of .015), for a 6 gallon must, it would take 2.4 pounds of sugar. If (I repeat IF) the fpack is 1 quart in total liquid (ignoring skins, seeds, etc), the BRIX of that liquid would be 81, SG would be 1.421. Purely hypothetical based upon the volume.
Not sure about the fpac, but typical concentrate is 68 brix.
A saturated sugar solution at room temperature is 68 brix.
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