The jalapeno seeds are critical to eat because they can be very bitter. If you find the seeds of the pepper are brown, it means the pepper has gone bad. If this happens, you should discard the pepper or rinse it thoroughly before eating. The seed is also a sign that the pepper has gone bad. When removing the seeds, make sure to wash your hands thoroughly.
A fresh jalapeno won’t go bad for several weeks, but it’s still good to eat within a week. Once the skin gets soft and wrinkled, it’s time to throw it away.