The Bluapple Produce Saver with Activated Carbon is an essential part of produce storage to help you reduce waste and save money. Just like the Classic Produce Saver, absorbing the ethylene gas given off by fruits and vegetables, the Bluapple Produce Saver with Activated Carbon will keep your produce fresh up to 2-3 times longer than normal AND will absorb and neutralize odors in your refrigerator, similar to placing a box of baking soda in your fridge. Each Bluapple Produce Saver has an active ingredient packet inside that will last about 3 months. You can sign up for email reminders HERE to be reminded to change your packet every 90 days! Keep any unused packets in an air-tight container and they will last indefinitely.