I use one of these https://www.dualit.com/products/ecopress-aluminium-capsule-recycler https://www.dualit.com/products/ecopress-aluminium-capsule-r... It separ

I use one of these https://www.dualit.com/products/ecopress-aluminium-capsule-recycler https://www.dualit.com/products/ecopress-aluminium-capsule-r... It separates the aluminium pod and the coffee grounds so you can recycle the former and compost the latter.