Severus would think about those sorts of things. It wasn't enough for a mimicked or augmented potion to perform the way it was supposed to, but it was also supposed to be comparable in flavor, smell, texture and color to the original. At least, with the potions that Severus worked on. He was never satisfied until things were perfect.
"Picked up as a residue?" Severus asked, his eyebrows raising. That was certainly interesting. "Beschanhem's technique would work. Only, I would cut down on the amount of water used in the original recipe, rather than letting it boil off."