Ka Paunao Ke ʻoki nei ka ʻōpala i nā nui o Kelemānia e neʻe nei i ka Pākīpika. Ka hoʻohana ʻana i ka ʻupena no ka biodegradable ʻaʻole i kaupalena i ke kahe o nā kumu fossil akā e hiki ai i nā mea ʻenemi ke waiho ʻia i loko o ka mea lako. Ua hana kūleʻa ka Verpackungszentrum Graz i kahi ala i kēia ke kūkulu ʻana i nā ʻupena tubular e hoʻohana ana i nā fibul cellulose Modal compostable mai ka manawaleʻa ʻana i nā ulu lāʻau. Ua ʻike mua nā mau upena ma nā wahi kūʻai ma Rewe Austria i Dekemaba 2012. 10 mau tonika o ka kirina i hiki ke mālama ʻia e Rewe wale nō, me ka hoʻololi wale ʻana i ka pēpē no nā ʻuʻala mea kanu, nā bawang a me ka hua citrus.