Does you syrup have a slight burnt taste? Since most using steam pans have them set up so they end up getting a burnt line on the sides of the pan, that can have a big affect on the flavor. A flat pan, set up so only the bottom of the pan is exposed to the intense heat (and if you never run too low in the pan) the taste will be better. Also, what grade (how dark) is your syrup? Very light color has very little flavor, the darker it is the stronger the maple flavor.
Dave Klish, I recently bought a 2x6 wood fired evaporator from A&A Sheet Metal which I will be converting to oil fired
Now have solar, 2x6 finish pan, 5 bank 7x7 filter press, large water jacketed bottler, and tankless water heater.
Recently bought another Gingerich RO, this one was a 125, but a second membrane was added thus is a 250, like I had.
After running a 2x3, a 2x6, 3x8 tapping from 79 taps up to 1320 all woodfired, now I'm going to a 2x6 oil fired and a 200-425 taps.