If the player dies near Krissures and uses a Touchstone, Life Giving Amulet, Meat Effigy or another method of resurrection, the Krissure will sometimes get stuck in the erupting state, but no longer allow the player to cook Food.
Willow, while not getting any fire damage, does not get a Sanity bonus while standing next to an erupting Krissure.
A Krissure before erupting.
A Krissure erupting.
Wilson next to krissure
Webber between two Krissures. It is also obvious that they can be used as a light source in the picture.