sap hydrometer

[PF]

Anybody know what temperature the sap has to be to read the sap hydrometer accurately? Not sure if I'm reading mine right because it's showing sugar maples at 1.5%. I was thinking of tapping red maples but if the sugar content is lower than that - not worth the fuel. ??

Beginner

[Rob Harvey]

The one we have says what temp. it is calibrated at. I think it is 47 degrees but that might not be right. Ill check next time I go down to the sugarhouse. On ours it is printed on the paper inside the hydrometer. Rob

[maple flats]

I think mine says 36 or 37 degrees to read sap at. Will check to be sure, I always checked it as soon as I start running it thru my UV and temp would not always be exactly the same but might be close.

[GregMVT]

I checked mine this morning as I was leaving for work. It should be 38 degrees. Not sure if it makes a difference but mine is from Leader.

Greg

[PF]

Thanks everyone. Guess it was too easy since it was right in front of me. Mine also says 38. How many dumb questions is a beginner allowed?