Gas sterilisers for preserve jars. These sterilisers are entirely made from hot galvanised steel or in enamelled steel. Hot galvanisation processes are more watertight than cold galvanisation, avoiding rust points at the seams. Enamel is easy to clean, resistant to acid and can be placed on an induction hob. From 5 to 24 one litre jars can be sterilised in these models.