Wait for the coolest part of the day to pick peppers. This allows the stem time to heal without burning or wilting. Pick peppers in the early morning, evening or on cloudy days whenever possible.
Cut peppers from the vine with a clean, sharp knife. This helps prevent damaging the vine of the pepper plant. Cut the stem 1 inch above the pepper with the knife. Alternatively, use clean pruning shears to cut the cut from the plant.
Choose peppers that are the size and color you want. Green bell peppers are immature yellow and red peppers. Pick dark green peppers before they have had an opportunity to ripen on the vine if you want green peppers.
Allow peppers to ripen to the desired color on the vine before picking. Pick red peppers before they become soft in the middle for best flavor. Soft outside centers indicate peppers that are overripe. Alternatively, pick peppers just as they begin to turn from green to yellow, or yellow to red and allow them to ripen in a windowsill.
Store peppers in cool temperatures but not below 45 degrees Fahrenheit. Store in containers with tight-fitting lids.