Many discussions on packaging lead to undue expectations regarding the
usability of degradable materials. There is also considerable mis-use
of the term ''biodegradable.'' The manufacture of a new foamed materi
al based on native starch is discussed. The structure forms by water e
vaporation and gelatinization of starch during a molding and heating s
tep. Typical applications are shown. Composting tests confirm degradat
ion within a few weeks without the accumulation of residues.