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Pringles has improved its 
. Pringles is well known for its large, 
, crisps and their cylindrical container. However, the 
 is bad for the environment. People criticised the tube because it was almost 
 to recycle. The BBC said the container was "a recycler's nightmare". It might look 
, but it is made up of many materials. It had a 
 cap, a metal base, an aluminium 
, and foil-lined cardboard. This means it is difficult for 
 to separate and recycle. The Recycling Association called it one of the "
" of the recycling 
.