Coffee addict coming to London (and flying to more travel destinations soon after) here. Are there any coffee roasters in London that will vacuum pack freshly ground beans in the shop? Or, are there any that let you collect, for free in the shop, an online order of vaccuum-packed ground beans.

I'm not sure it will be possible to receive a package at the Airbnb I reserved. There is a post office that offers poste restante across the road though. I'm not sure if a packet of coffee is "mail" though.

Thank you if anyone can help!