Based on the provided reference, one way to store bell peppers after harvesting is to freeze them using a freezer bag.
According to the reference, peppers can be stored by placing them into a freezer. The method described involves taking a plastic bag, specifically a freezer bag, and using it to store the peppers in the freezer.
The reference mentions placing the peppers into the bag seemingly whole ("Hole just like this"). Separate bags are used for different types of peppers (like Anaheims and Jalapenos), suggesting this bagging method applies generally to harvested peppers, including bell peppers. This simple approach allows you to store harvested bell peppers in the freezer for later use.