If you did end up washing your bell peppers, make sure that they are completely dry before putting them in the fridge. Pat them dry with a paper towel.
Do not tie or knot the bag closed. You will need airflow to keep the peppers fresh. Do not store peppers in an airtight bag. This will make them spoil faster.
Do not keep peppers in the same drawer as fruits. Fruits release a gas called ethylene, which can cause vegetables to rot faster. [4] X Research source
If you notice any mold on your peppers, throw them out, no matter how long you have had them. Whole bell peppers can be stored for up to 2 weeks in the fridge. [6] X Research source
Write the date on the plastic bag or container using a marker. Bell peppers will last up to a year in the freezer. If they start to look discolored or wrinkled, throw them out. [15] X Research source