Interaction between packaging and food consists of the transfer of substances from the environment as well
as from the packaging into the food and vice versa. Chemical reactions inside the packaging or food are
also possible. Experimental studies were conducted on the migration of Fe, Sn, in canned foodstuffs. In
order to study the interaction of metal packaging at the same time to check the stability of protective
varnish applied to the boxes, canned produced were analyzed periodically during storage, from the point of
view of sensorial, physical - chemical and microbiological properties and of migration of heavy
metals.Three-piece-cans had been protected with different coatings and techniques. After filling with
different raw materials, cans were stored in ambient temperature (ca 20 grd. C) during 2 years. There was
stated increasing dependence of storage time on concentration of Fe and Sn in cans. There are great
differences among migration of Fe, Sn and migration trends of the other heavy metals reported in the
literature. These phenomena are disadvantageous for quality of canned foodstuff.
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