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Aseptic Packages Are Convenient, Hard to Recycle
News Release January 05-2003 -- it's more than likely that it's stored
in a paper-and-foil aseptic package, complete with a colorful cartoon
logo. Although aseptic packaging was invented to ship foods safely without
refrigeration -- a feature that has helped feed many people in the developing
world -- it is more familiarly used in the United States for convenience
drinks. And while some environmentalists applaud the merits of aseptics,
a number of important questions remain.
The first tenet of the "reduce, reuse, recycle" mantra is that if we produce less waste to begin with, we've already won part of the garbage battle. Aseptic boxes were conceived, in part, to fit this bill. They are about 96 percent beverage to four percent packaging by weight, which is lower than glass or aluminum cans, according to the Aseptic Packaging Council (APC). The boxes are filled in a sterile environment through a process that uses less energy than traditional canning, preserves many food nutrients and requires few to no preservatives. Sue Becker, vice president of Eden Foods, says, "Aseptics really protect the integrity of food." Most aseptic packages are made up of 70 percent paper, 24 percent polyethylene and six percent aluminum. Given the container's low volume and rectangular shape, according to APC, product can be transported more efficiently than in cans and bottles. Unlike cans, there are no sharp edges, and the boxes collapse to a small size. Since no refrigeration is needed, energy is conserved compared with storing and shipping fresh foods packaged some other ways. Aseptic packages have also proven invaluable in areas where water quality is so poor that rehydrating dry foods would be dangerous. As a multi-material product, aseptic boxes are relatively hard to recycle, says John Davis, president of California Resource Recovery Association. Only the relatively few recycling facilities that practice "hydrapulping" (the process used on polyethylene-coated paper, as found in milk cartons and frozen food paperboard) can handle aseptic containers. According to Davis, "There are no hydrapulping facilities in California or on the West Coast. Some source-separated aseptic packaging may be shipped overseas or east for recycling." Spokesperson Michael Fraser of New York's Department of Environmental Conservation adds, "New York State doesn't have an aseptic recycling program. What to recycle is decided at a local level, and with aseptics this is done on a limited basis." The APC claims that more than 12 million U.S. households have access to curbside programs that recycle aseptics, though this figure may be lower due to recent recycling. The actual recycling rates for aseptic containers are quite low, however. Since this type of packaging is such a small part of the waste stream (between .03 and .1 percent of the total), most recycling programs simply ignore it, says Davis, although no exact recovery numbers are currently available. APC Executive Vice President Erich Parker would like to see more communities offer aseptic package recycling, although he admits it's often an uphill battle. "Cities want to recycle materials that are of such quantities in the waste stream that they can make money," he says. George MacDonald, who runs Maine's waste management and recycling program, takes issue with that line of thinking. "Do they want consumers to continue buying convenience products to promote recycling?" he asks. "I'm missing something there." Another problem, according to Julie Daniel, executive director of BRING Recycling in Oregon, is that some recycling mills that accept aseptic packages consider the aluminum a contaminant in the milk carton stream, and limit the percentage of aseptics they'll accept. The recycleability of the technology has been so contentious that aseptic packages were even banned in Maine for a few years. Now seven of 493 Maine communities have recycling programs that accept the material. Though some environmentalists, including MacDonald, say that single-use drink containers promote a throwaway mentality, the aseptic packaging industry argues that its product is used for more than just children's juices. Other products and bulk foods are stored in the packages, from liquid eggs to chopped tomatoes, syrups and concentrates. Even though the jury remains out, many natural food producers have switched to aseptics. Since soy products are more sensitive than cow's milk, the container has been a real boon to the soy milk industry. Other "cowless" milk products include rice, oat, and almond milk, and creamer substitute. Iced teas, coffees, and cocoa come in ascetics, as do broths for cooking. Some athletes chose sport drinks in aseptic packaging, because they are extremely lightweight and durable. Mori-Nu claims that its food products are "never exposed to light, air or bacteria. Tofu and creamy soups are made right in the aseptic box after it has been sealed, which means full nutrient retention." Starre Vartan is a freelance writer living in Norwalk, CT; Orna Izakson is a similarly employed scribe in Eugene, OR. By Starre Vartan and Orna Izakson
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Source: Environmental News Network
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