How to dry peppers in the oven effectively?

To dry peppers in the oven effectively, preheat the oven to a low temperature (around 150-200F). Slice the peppers in half and remove the seeds. Place the peppers on a baking sheet in a single layer, skin side down. Leave the oven door slightly ajar to allow moisture to escape. Check the peppers every hour until they are dried to your desired level of crispness. This process can take several hours.