Leave the pods to go brown and dry naturally and then pick them and store them in a paper bag or envelope for next year. The old gardeners used to only keep the pods with seven or eight seeds so hopefully next years plants will be the most productive.

yes let the die back completely then pick and store in a cool dry place. No need to keep them in the fridge.

Ah righto, there only about four pods left Jimmy so I can't be selective😄 Thank you both for replying.