Those bags that we can conveniently tear off a roll at the grocery store to weigh our fruit and vegetables in, is called single use plastic. This means that this plastic cannot be recycled and if it breaks, it cannot be used for anything else apart from filling an eco brick.
If you think of all the single use plastic that South Africans use every year, it seems to add up to quite a lot. Now think about how many people around the world use single use plastic and how much plastic that would be in a whole year. I find it quite a scary thought.
Unicorn Cafe supplies bags to use over and over again when buying fruit and vegetables in the grocery store. They are called fresh bags and can be found here.