The same wonderful essential oils that are infused in each blend are also available to refresh your potpourri at a future date. Use the glass eye dropper to spruce up the fragrance just before a party, or toss the potpourri in a plastic bag with the entire bottle of oil. 1 oz. Bitter Orange is a complex & subtle blend that permeates the air with additive waves of clove, the zest of bitter orange & just a touch of cypress. Described by The New York Times as "uplifting, mysterious & androgynous in its appeal."