Yes, pick the ripest pods to collect seeds from. I use two methods, depending on what I'm doing with a given pod. If using it fresh, I first give them a bath of 10:1 water and hydrogen peroxide to kill any hidden nasties, then I place the seeds on a paper towel or even a plate and just leave them out to dry. If I'm going to dehydrate the pods, however, I dehydrate the seeds along with the pods at a low temperature (90F is the lowest my dehydrator goes.) It takes longer to dry the pods this way, but the seeds remain viable. If you dehydrate too high, though, the seeds will cook.
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And yes, I'm one who laughs at those who say dire things about freezing seeds. Seeds freeze in nature, although some people will swear up and down that they don't. To prove a point, I used seeds from pods that had been in my freezer at least 6 months and germinated them - and got 100% germination from them. They were all from ripe pods, of course. But just as you may not have 100% success with seeds that have never been frozen, you might not get 100% success from frozen pods - it just depends on your total germination conditions and the original viability of the seed. Clearly if your seed was not viable before being frozen, it's not going to be viable after, either. So if freezing pods is best for your circumstances, feel free to leave the seeds in them, if you want.Â
... and regardless of where your seeds came from, always give them a bath in a mix of hydrogen peroxide and water at the start of your germination process to kill off any hidden nasties. This includes seeds you purchased.