An aromatic package comprises a liquid or gel type aromatic and a sack made of a gas-permeable but liquid-impermeable film and hermetically receiving the aromatic. In another form of the aromatic package of the invention, the above-mentioned aromatic package is received in a gas-permeable case which...http://www.google.com/patents/US4961493?utm_source=gb-gplus-sharePatent US4961493 - Aromatic package
