Remove the insides from the citrus fruit until nothing but the bare peel is left.
Cut the citrus skin with your knife into small, thin strips or regular slices.
Place the skin pieces on a cookie sheet and leave them in a warm, dry place for three days.
Mix the pieces into your potpourri
Cut the citrus skin into slices.
Remove any membranes from the fruit.
Preheat your oven to 175 degrees Fahrenheit.
Place the slices on a wire rack, and place it in the oven for four to six hours.
Mix the slices into your potpourri.