The potato chip maker Pringles has improved its
. Pringles is well known for its
, round, stacked crisps as
as for its cylindrical container. However, the container has been criticised for being
for the environment. A lot of the criticism was because the
was almost impossible to recycle. The BBC news agency said the container was "a recycler's
". It might have looked simple but it was made up of multiple materials. It had a plastic
, a metal base, an aluminium tear-off cover and a foil-lined
tube. This all made it nearly impossible for people to separate and recycle the
. The Recycling Association called it one of the "
" of the recycling world.