clarifier

the purer the sugar, when placed in the clarifier, the less lime water or blood, or temper of any kind — the less time in clarifying — and the more active vigilance at the clarifier — and the more activity also in transferring the liquor from the evaporator into the cooler will be requisite.

[…] if any card in the spread puzzles you, you can pull another card from the deck as a clarifier.