Onetap wrote:

The lunacy amongst Roman Emperors (Caligula, Nero, etc..) was probably the
result of consuming wine stored or drunk from lead or pewter vessels.

Umm no. The problem of lead in food stuffs was principally from the
consumption of sapa as a flavouring agent in Roman cooking. Sapa was
created by boiling a grape must in a saucepan for hours on end to
concentrate it.

The Romans discovered that the end product could be made even sweeter by
boiling the must in a lead saucepan and this became a standard way of
preparing sapa. Unfortunately the sweet flavour was due to the formation
of lead acetate (lead sugar) which is much more soluble than lead
oxides. As with most lead compounds it is a potent toxin.

I suspect for the man in the street unable to afford expensive preserves
and sweeteners it presented little hazard, but emperors presumably
consumed "quite a bit" of food flavoured with sapa.