Invert Sugar Tester

[ecolbeck]

What are folks using to test for invert sugars for making granulated sugar?

[GeneralStark]

I have used a Glucometer with the method described here:

http://www.nnyagdev.org/maplefactsheets/CMB%20206%20Measuring%20and%20Adjusting%20Invert%2 0Sugar%20in%20Maple%20Sugar.pdf