I'm thinking of having a nice SS evaporator pan built up also. I was using a large 15 gallon + brewers pot on a raging hot fire pit, but when I got it to a good boil, the sap would splash up on the sides and caramelize to get rinsed back in again. It isn't a nasty flavor, but it just isn't right for syrup.
Not to mention the "fun" of cleaning the pot back off. It took a lot of stove cleaner!
