1. Check the logo and certification  

1. QS mark: The lunch box must have the QS (Food Quality and Safety Market Access) mark, which is an important mark to ensure that the lunch box meets food safety standards.

2. Material identification: Choose disposable lunch boxes made of PP (polypropylene) and marked with "5PP". Such lunch boxes usually have good heat resistance and microwave heating safety.

2. Observe the appearance and texture

1. Color and gloss: Lunch boxes with too dark or bright colors may contain waste plastic or additives, so choose with caution. High-quality lunch boxes are usually natural in color and have a moderate gloss.

2. Surface texture: Touch the surface of the lunch box with your hand. A high-quality lunch box should be smooth and free of impurities, with smooth edges. A low-quality lunch box may feel rough, with spots or impurities on the surface.

3. Smell the smell

1. Odor detection: After opening the lunch box, sniff it with your nose. Poor-quality lunch boxes may emit a pungent odor, which is caused by low-quality plastic or harmful additives. High-quality lunch boxes are usually odorless or have only a slight plastic smell.

4. Check physical properties

1. Heat resistance test: If microwave heating is required, place the lunch box in a microwave oven for a short time to observe whether it deforms, melts or produces odor.

2. Strength test: Gently squeeze the lunch box. A high-quality lunch box should have a certain strength and toughness and should not be easily deformed or broken.

5. Choose a formal channel to purchase

1. Brand selection: Give priority to disposable lunch boxes from well-known brands, which usually pay more attention to product quality and user experience.

2. Purchase channels: Purchase disposable lunch boxes through regular supermarkets, convenience stores or e-commerce platforms, and avoid purchasing them at roadside stalls or unknown shops.

        6. Enhance environmental awareness

        1. Reduce usage: Minimize the use of disposable lunch boxes and encourage the use of reusable tableware.

        2. Garbage classification: After using disposable lunch boxes, garbage should be sorted and placed in recyclable trash cans.

        In summary, avoiding inferior disposable lunch boxes requires multiple aspects, including checking the logo and certification, observing the appearance and texture, smelling the odor, checking the physical properties, choosing regular channels to purchase, and enhancing environmental awareness. Through these measures, consumers can use disposable lunch boxes more safely and environmentally friendly to protect the health of themselves and their families.