I had a curious customer in my shop today poking at some of the scraps on my work bench. Some of those are stiff, crumbly bits of clay that I don’t use for much except filler. The customer wanted to know if this stuff was still usable though. They were familiar with some of the old fashioned Fimo from 15 or 20 years ago. And, let’s face it, the stuff was and is a bear to make not stiff and crumbly.
I explained a little to them but there’s better explanations on the internet. This article, by Ginger of The Blue Bottle Tree, is part of a larger series of sensible newbie information for clayers.