Their way of doing it is by taking some of the whitest clay and mixing it
with water, till it is like cream. With this they fill up the pans of
sugar that are sunk 2 or 3 inches below the brim by the draining of the
molasses out of it: first scraping off the thin hard crust of the sugar
that lies at the top, and would hinder the water of the clay from soaking
through the sugar of the pan. The refining is made by this percolation.
For 10 to 12 days time that the clayish liquor lies soaking down the pan
the white water whitens the sugar as it passes through it; and the gross
body of the clay itself grows hard on the top, and may be taken off at
pleasure; when scraping off with a knife the very upper-part of the sugar
which will be a little sullied, that which is underneath will be white
almost to the bottom: and such as is called Brazil sugar is thus
whitened. When I was here this sugar was sold for about 50 shillings per
100 pounds. And the bottoms of the pots, which is very coarse sugar, for
about 20 shillings per 100 pounds, both sorts being then scarce; for here
was not enough to lade the ships, and therefore some of them were to lie
here till the next season.
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