Sometimes bell peppers need some time to ripen after they are first picked. Storing your bell peppers properly will ensure they are fresh and ready to use when you need them. This is a guide about storing bell peppers.
This is my tip for storing a partially used green pepper (or even red or yellow): If you use only a half or a quarter, make sure to use the piece that broke away from the seeds. Store the remainder, seeds intact, in the vegetable drawer unwrapped. The seeds that are still attached will attract any moisture, keeping it away from the pepper. No more soft, slimy peppers.