Preserving a Caul
Cauls have been preserved in several ways through the millennia. Some people keep them in jars or containers of water, or by folding them up and keeping them in envelopes.
A recommended way to preserve a caul is to let it dry out after the birth, without folding it, and then laying it out on non-acidic cardboard or other non-reactive material. Cling-wrap or other such material is often used to cover both the caul and the backing material. Once this is done, the caul should be preserved in a dry, safe place, away from dust, heat and moisture.