Seeds and Membrane The seeds are found in the center of a jalapeno pepper and are surrounded by a membrane. This membrane is where most of the capsaicin is in the jalapeno, so it is the hottest part of the pepper. The seeds and membrane can be used in cooking, but are often removed.Click to see full answer. People also ask, how do you remove the membrane from a jalapeno?There are two ways to remove jalapeño seeds and membrane. The first is to cut the jalapeño in half lengthwise, exposing the membranes that hold the seeds in place. Then take a spoon and scrape out the membrane, working from the bottom to the top of the pepper. are red jalapeno peppers hotter than green? Left on the plant (and even after picked) green jalapeños will eventually turn red. So red jalapeños are older than green jalapeños. The red ones can be pretty hot, especially if they have a lot of striations, but they are also sweeter than the green. Additionally, do you keep the seeds in jalapenos? Discard Them. It is certainly fine to throw the seeds away. If your dinner is spicy enough for your taste and you don’t need jalapeno seeds for planting, don’t feel like you must save them.How do you prepare jalapenos? Prepare it To remove the pith and seed from a fresh jalapeño, wash it, slice lengthways in two, then cut off the stalk. Using the tip of a knife, cut way the white pith and the harder white core, keeping the knife close to the surface of the flesh.