From glass to plastic: the revolution of wine bottle packaging
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The use of glass bottles has been around for hundreds of years. For a long time, the use of glass bottles and cans to hold wine has become the mindset of many companies. However, in recent years, due to the increasingly easy advantages of plastic bottles, such as easy recycling, light weight and resistance to falling, plastic bottled wines are widely favored by consumers; especially with the emergence of oxygen barrier technology, the shelf life of wine is greatly extended. Therefore, the use of plastic bottles is becoming wider and wider. From glass to plastic, not only the improvement of packaging, but also the innovation of products.
Shaped like glass, convenient and clean
Just in July of this year, SutterHome, a family-owned vineyard in the United States, announced that its entire 187-ml bottled wine production line will use Amcor Rigid Plastics PET (referred to as polyester) bottles. The company began producing PET bottles in 2005 and was one of the early manufacturers involved in the production of plastic bottles.
“The shape, feel and convenience of plastic bottles make them popular among consumers.” Wendy Nyberg, senior director of Sutter Home, also said that plastic bottles have similar appearance and high quality packaging to traditional glass bottles. Impressed.
In addition, as early as February of this year, Societede Vin Internationale LTEE, a leading technology bottle supplier in Canada, recommended to the North American aviation industry a 1L PET bottle also produced by Amcor Rigid Plastics. The new PET bottle weighs only 54 grams, which is 1/8 of the previous equivalent glass bottle. SocietedeVinInternationale uses its packaging as a 1L brand of Costabella, Viajos Robles, Massaria, and Bergeriedu Loup. This is the first time Amcor has produced a 1L product for the brand, previously producing only 187ml and 750ml containers with smaller capacities.
Innovative oxygen barrier technology
In order to prevent oxidation of the wine in the bottle, KHS of Germany has introduced a unique silicon film oxygen barrier coating, Plasmax, which can effectively extend the shelf life of the wine inside the bottle. Plasmax is an ultra-thin (less than 100 nanometers), oxygen-sensitive package that is resistant to cracking, abrasion and delamination. In addition, according to Amcor Rigid Plastics, the film does not degrade over time in empty bottles and does not reduce the effective shelf life. And this oxygen barrier film is easily removed during the recycling process of the bottle and does not contaminate the recycling line.
“The use of this material is a significant advancement in the wine packaging market as it greatly expands the market prospects for oxygen barrier PET containers,” explains Kerry Drewry, sales manager at AmcorRigid Plastics. “We look forward to oxygenated PET bottles. Widely used in more wine shovel packaging."
Broad prospects for energy conservation and environmental protection
Australian winemaker Wolf Brass has launched a variety of PET bottled red and white wines, which is said to reduce greenhouse gas emissions by 29% compared to traditional glass bottles and to promote Wolf Brass as a green label. When comparing a 51g PET bottle to a 515g glass bottle, the PET bottle can save 64.64% of greenhouse gas emissions during production and distribution, saving 33.95% in product distribution.
Wolf Blass green products use WolfBlass oxygen barrier material, which is the first application of this material in the Australian market and the first time in the world for wine packaging. This technology allows the wine to be stored for up to 12 months; the material packaging also reduces cooling requirements and associated energy consumption.
The recycling of PET bottles also has broad prospects. The high-quality PET plastic bottle recycling system successfully developed by Krones Germany has an annual processing capacity of 15,000 tons of PET beverage bottles. The processed PET raw materials can be directly fabricated into other PET containers, and the production cost is greatly reduced. The PET plastic bottle recycling system utilizes the chemical coating elimination technology to remove the contaminants adhering to the surface of the PET plastic bottle with caustic soda as a remover, and can realize the recycling of any kind of PET plastic bottle. The recycled products treated by this technology can not only directly mix the preforms, but also the recycled products can meet the requirements of purity and quality due to the low content of acetaldehyde and yellow pigment, especially suitable for products in the food and beverage industry. Packaging, the cost is 20%-30% lower than the average new material.
Conclusion: As an emerging field of PET packaging, in the international wine market, the use of PET bottled wine has grown rapidly in recent years. The PET plastic bottle itself and its technical advantages will gradually become the new favorite of international wine packaging, with broad development prospects, and will enter a stage of rapid growth.
Marks & Spencer (M&S) is one of the UK's largest retailers, and since 2010 it has replaced all small (mini) capacity products with PET. According to the company's statistics, this alone saves 525 tons of packaging materials per year. The dressing products include 19 kinds of red, white and rose wines. The mini plastic bottles used are only 88% of the quality of traditional glass bottles, which can greatly reduce carbon dioxide emissions in production, transportation, distribution and other fields.