What Do You Know About Plastic Food Containers?

A Safe Usage Guide

Modern life moves at a fast pace, and eating out or ordering takeout has become part of everyday life. As a result, food containers have become increasingly diverse. From plastic bags and plastic bowls to paper containers with leak-proof coatings, these convenient products have also raised consumer concerns about material safety. This article explains the materials and regulations related to plastic food containers to help consumers use them safely and with confidence.

Understanding Plastic Materials

Plastic is a polymer material formed through the chemical reaction of many monomers. During manufacturing, different additives such as pigments, antioxidants, or plasticizers may be added depending on the intended use to improve appearance, enhance durability, or increase flexibility.

Common plastic materials include polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), and silicone, each with different characteristics:

1. PET: Commonly used for mineral water bottles, carbonated beverage bottles, and transparent food packaging.
2. PE: Divided into low-density polyethylene (LDPE) and high-density polyethylene (HDPE). LDPE is softer and used for lightweight plastic bags, while HDPE is more rigid and widely used for milk bottles and thicker plastic bags.
3. PP: Has excellent heat resistance and is commonly used for beverage cup lids and reusable food containers.
4. PVC: Naturally more rigid and often combined with plasticizers to increase flexibility. Early plastic wrap products commonly used this material. In contrast, PE and PP are naturally flexible and generally do not require additional plasticizers.
5. PVDC: This material contains chlorine by nature. When manufacturing soft plastic wrap, plasticizers are added to increase flexibility and stretchability. When exposed to high temperatures, oily foods, or acidic foods, there may be a risk of chemical substances such as plasticizers or chlorine compounds leaching out.

Regulations and Labeling Requirements

To protect food safety, the Ministry of Health and Welfare has established the “Sanitation Standard for Food Utensils, Containers and Packages” under the Ministry of Health and Welfare Food Safety and Sanitation Act. The standards regulate limits for heavy metals, plasticizers, and evaporation residues in plastic containers. Products that comply with these standards are considered safe under normal usage conditions.

According to Article 26 of the same Act, food containers sold on the market must clearly display product information before sale, including product name, material type, heat resistance temperature, usage precautions, and whether the item is labeled “reusable” or “single-use.” If PVC or PVDC materials are used, warning labels such as “Do not allow direct contact with high-fat and high-temperature foods” must also be included to remind consumers of proper usage.

In addition to public education and guidance for manufacturers, the Taiwan Food and Drug Administration regularly conducts inspections and sampling tests on products available on the market. Products that fail to meet standards are penalized according to the law to ensure food container safety and protect public health.

Source: Taiwan Food and Drug Administrationhttps://www.fda.gov.tw/TC/PublishOtherEpaperContent.aspx?id=1592&tid=5414&r=1323965546