This is an excerpt from Een notabel boecxken van cokeryen
(Netherlands, ca. 1510 - C. van Tets, trans.)
The original source can be found at
Willy Van Cammeren's website
To make good fine white clareyt. Take two vierendeel [approx. 1.3 litres or 2 pints each] and a half pint of white wine or [wine of] Poitou. Then take a little of this wine and make it warm; into this wine put brown sugar and stir it as long until the sugar is all well melted in the warm wine. Then thoroughly mix into it an ounce and a half of this following powder. Then you shall pour it through the sack eight or nine times and clarify it. This is the powder. Take fine cinnamon white ginger, grains of paradise, long pepper, galingale, sweet flag [Acorus calamus], coriander in equal parts. Make powder of this and let it all run through [the sack] together.