The now-tannin-free starch-water suspension should have an off-white colour. This starch is allowed to completely settle at the bottom of the vat, the water drained away and the paste collected in trays to dry.
The starch-water suspension devoid of tannins should be off-white in appearance. The starch must settle fully at the vat's base, with the water removed and the paste gathered into trays to dry.