Does temp matter?

[esetter]

When you check sugar content with a hydrometer and tube / cup , does the temperature at the time matter? I home brew and temperature does affect the reading when checking beer wort.

[spud]

I believe they are supposed to check sap at about 40 degrees.

Spud

[maplefrank]

http://andersonsmaplesyrup.com/files/HydrometerTempCorrectionChart.pdf

[esetter]

Cool chart. Thanks for the replies. Spud , according to the chart you are right on.

[BreezyHill]

Hydrometer works on density of liquids. Temperature changes the density of liquids. So in life size and temperature matter. LOL

[esetter]

My beer hydrometer is calibrated to +- 80 degrees F. I might see how it works on sap at that temp. I might also stop being so tight and buy a sap hydro….

[BreezyHill]

Well if you are tight then don't buy a hydrometer. I bought a refractrometer like:
http://www.ebay.com/itm/Portable-Refractometer-Tester-Bees-0-90-with-ATC-Brix-/281737170824?hash=item4198d80f88:g:LAIAAOSw9N1VkmS U

this save you some much time and $$$ you will not believe it.

I do prefer the hyrometer when drawing off for the speed and ability to dump the cup back in the evap when it is under %.

My sap refract paid for it self in the first day I used it from saving sugar from being discharged while rinsing the membranes.

Ben

[esetter]

That may be the way to go for me. I have tons to learn. I have no idea what rinsing membranes means. I may be ordering that one , thanks for the link.