Hi @monabg, glad that you asked!
Indeed, we are in the process of exploring a closed-circuit option whereby empty plant pods can be returned to us to be cleaned and re-filled. While all sofi packaging is recyclable, we want to do more - and the best thing in this case is re-use! 
We will begin in the UK, and are looking to eventually turn our attentions towards developing a system that can function internationally, in an as sustainable as possible way.
In the meantime we would love if you could hold onto your empty plant pods (pump and all) while we figure the logistics out and work towards further reducing our environmental impact 
