Despite the fact that the vapor pressures of compounds decrease
with decreasing temperature, Johns, Jickells, Read, and Castle
found that model ink components transfer from cardboard into food even in a frozen state. PFC do not volatilize easily but they readily migrate into
directly contacted water-ethanol food simulants, fast food, butter
and oily materials. In fact, the number of substances
migrating from paper packages can be so high as it seems impossible
to bring all of them under control