I suppose that you need a larger batch to use a hydrometer - do you scoop out a few oz. of liquid to put into a separate container in order to use the hydrometer, and then put the liquid back into the batch after making the measurement, or can you dip the hydrometer right into the pan where the sap is boiling?

BTW, I don't mean to hijack this thread, it just seemed to be a good place to exchange info with other Connecticut users...