Saving Seeds from Runner Beans

in Fruit & veg
Advice please …. I want to collect seeds from my runner beans and did it successfully last year. I was leaving them to turn brown etc but last night during heavy rain and gales my bean canes have almost collapsed and I think I need to take them down but most of the runner beans are still green! Can I pick them and leave them to dry out inside or do they need to do this naturally? Thank you.
South Devon
0
Posts
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.