I know this is an old thread...but I'm running into the same issue as the OP...just got a brewing kit for a Belgian Dubbel with a pound of dark Belgian candi sugar that is supposedly rated at 275L, which BS3 is saying will turn my Dubbel into a Porter...
Looking at Morebeer.com, their "Dark candi sugar" image looks more amber to me. Looking at NorthernBrewer.com, the online photo of their dark candi sugar looks identical to what I have, and it says the following:
"Imported from Belgium, this sugar is refined from sugar beets, and is 100% fermentable. Rated at 275?L; actual color contribution is lower."
...so Brad...what does that last statement mean? Is the 275L assumed to be including the maillard reactions in a full boil, whereas if you add it to the whirlpool, will not contribute as much color? Or are the manufacturer's color contribution numbers just completely arbitrary with respect to grain color contribution? In any case, how do I work with Beersmith to correlate to ACTUAL color contribution? I tried changing the candi sugar in my recipe to "whirlpool" and the SRM calculation didn't change...