Answer by
Mariana39 (440)
Certain types of clay may contain asbestos. Several producers of toy clay had to recall their products because of this, some examples being Fibro-Clay in 1983, Ja-Ru Toy Clay and Art Skills' Clay Bucket in 2007 and Nytal 100 in 2008. The use of talc-free clay is now widely recommended, especially in schools, to prevent such problems.