Are Stainless Steel tops necessary?
A stainless steel top can improve the Free Fatty acid levels in production by as much as 10x. Stainless steel qualifies for Organic certification as does mild steel but galvanised tops do not. Stainless steel tops don’t rust when the unit is not being used and they are much easier to keep clean than iron tops. If you are not worried about Organic certification then 2mm galvanised tops are OK.