About the Sale of Chametz​​​​​​​​​​​​​​

Since it is prohibited to possess chametz on Passover, any chametz left undisposed must be sold to a non-Jew

All such chametz, as well as all chametz utensils that were not thoroughly cleaned, should be stored away. The storage area should be locked or taped shut for the duration of the holiday

Since there are many legal intricacies involved in this sale, Rabbi Hacohen acts as our agent both to sell the chametz to the non-Jew on the morning before Passover, and also to buy it back the evening after Passover  ends

  Selling Your Chametz