As this is the first time I have grown runner beans, I have no expectations. In other words, I do not know if I leave the beans pictured on the plant below for another week they will get bigger and better or if they will simply become stringy and less pleasant.
A colleague has put in a request for home-grown runner beans, so it would be nice to keep them for her next week. My garden only seems to produce in handfuls, so there is no guarantee of more if I pick them now. Or rather more will be a handful at some point but it might not be a quality handful.