Originally Posted by william_shakes_beer
Would I be correct in assuming another way to answer this question is to plug the original grain bill into beersmith, note the SRM color number, , then play with the substitutions until the same SRM is acheived? Or do I have a fundamental misunderstanding?
well, yeah, that's what i'd do. that way you could get it pretty much exact. but i was offering the OP a suggestion based on what he has on hand. if he has software, he could just replace the caramel 10 with on of the lighter crystals he has in an amount that yields the same color.