” I already can a lot from our home garden but I was thinking about your premise of life in a post-apocalyptic world. What about pectin? I imagine you can do without the pectin but I never have. Is pectin something you can make yourself?”
YES, you can make your own pectin and there are reasons why you might want to ,even in this world we have now, such a avoiding processed foods. My Healthy Green Family has an excellent and very thorough post about homemade pectin, with links included on even more information.