For what it's worth, you're going to have to optimize away gel-packs somehow if you do want it to be handled in an eco-friendly way. The vast majority of people

For what it's worth, you're going to have to optimize away gel-packs somehow if you do want it to be handled in an eco-friendly way. The vast majority of people are going to throw those in the garbage. Sending them back to you is a huge hassle, and upcycling them won't scale for repeat customers.