Plastic color-printed composite packaging manufacturer and plastic flexible packaging solutions
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2020
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Time to learn something new! A brief overview of precautions when storing cooked food in plastic bags.
Plastic packaging bag manufacturers remind consumers that when using plastic bags to package food—especially cooked foods—it is essential to clearly distinguish between food-grade and non-food-grade bags. Do not use non-food-grade bags to package food, as this could pose a health risk.
Qingdao Platinum Packaging Technology Co., Ltd. is a manufacturing enterprise specializing in plastic flexible packaging, encompassing the research and development of new plastic materials, printing, laminating, slitting, bag-making, and related R&D. The company’s production base is located in the Jiaobei Industrial Park, Jiaozhou City, Qingdao, while its business operations and R&D center are situated in the Shinan District of Qingdao. With many years of experience, the company produces high‑quality flexible plastic packaging materials and comprehensive packaging solutions. Its main product lines include: laminated plastic packaging bags, color‑printed packaging bags, food‑grade packaging bags, vacuum‑sealed bags, retort pouches, low‑temperature frozen‑food bags, cat litter bags, and rolls of automatic packaging films for food and medical applications; as well as transfer printing films, warning tapes, flag‑type tapes, bird‑repellent tapes, and cable ties for air conditioners, among others.
Plastic packaging bag Manufacturers remind consumers that when using plastic bags to package food—especially cooked foods—it is essential to distinguish between food-grade and non-food-grade bags. Do not use non-food-grade bags to package food, as this could pose a health risk.
According to reports, when packaging ready-to-eat foods such as cooked dishes and pastries in plastic bags, it is advisable to avoid colored bags. This is because the pigments used to color these bags are highly permeable and volatile; they can easily leach out when exposed to oil or heat, contaminating the food. Moreover, if organic dyes are employed, they may contain aromatic hydrocarbons, which can pose health risks. Many colored plastic bags are made from recycled plastics, and since recycled materials often contain numerous impurities, manufacturers must add pigments to mask these defects.
One thing is certain: never use plastic bags produced by informal manufacturers and sold at street stalls as food‑grade packaging. If a plastic bag has an unusual odor, it should not be used to contain food either. Although plastic food‑grade packaging is generally safe, proper handling and usage are still essential.
That concludes today’s presentation. For more information, please visit our official website. 
Plastic packaging bag
Qingdao SINOY Packaging Technology Co., Ltd. is a specialized manufacturer of plastic flexible packaging.
Contact Us
Factory Address: Zhuzhu Road, Jiaoxi Industrial Park, Jiaozhou City, Qingdao
Office Address: 27th Floor, No. 32 Hong Kong Middle Road, Shinan District, Qingdao City
