Choose fully ripe peppers, preferably red, yellow, or orange
Cut open the pepper and remove the seeds
Separate seeds from the flesh and placenta
Rinse seeds if needed to remove pulp
Place seeds on a paper towel or plate
Dry seeds completely in a cool, dry, airy place
Avoid direct sunlight and high heat
Turn seeds occasionally while drying
Wait until seeds are brittle and fully dry
Store seeds in a labeled paper envelope or airtight container
Keep stored seeds in a cool, dark, dry location
Check for mold before storing
Use seeds within a few years for best germination