When purchasing disposable packaging boxes in many restaurants, they often neglect how to identify these qualified packaging boxes: it depends on the label of the outer box. Some small factories or manufacturers without three certificates often use non-marking or English markings. In addition, you need to pay attention. The thing is to remember to choose at least three different shapes of lunch boxes when wholesale lunch boxes.
  
Different shapes store different things, making it more convenient to use. In addition to the common squares, rectangles, and circles, there are also suits designed for picnics, making life easier and more convenient.
  
Square packing box: Excellent sealing performance, suitable for storing food, preventing peculiar smell in the refrigerator, suitable for storing various condiments, leftovers, leftover cans, fruits, and vegetables. It is convenient to put in refrigerators, freezers, microwave ovens, and can also be used for other purposes.
  
Rectangular packing box: suitable for storing bacon and meat food. Thanks to the water receiving plate, it is easy to store food with moisture. The large-capacity rectangular fresh-keeping box is suitable for storing fruits, vegetables and seafood.
  
Round packing box: suitable for long-term storage of various condiments, canned fruits, miscellaneous grains, nuts, tea and other foods, easy to put in refrigerators, freezers, and microwave ovens. The oblong design is suitable for storing beverages, children’s milk and various grains, nuts and tea during wild travel.

If you use a disposable lunch box and need it to keep warm for a short time, just one or two hours, you can buy a lunch box made of materials like PC. In fact, the performance of the lunch box is also very good. If you are wholesale of PP lunch boxes If it is, the price will be relatively more affordable, and it is a very cost-effective product.
  
In fact, in general, the environmental performance of foreign brands is also very good, and the heat preservation time is relatively long, but foreign brand products are relatively more expensive. Generally, we recommend buying domestic brands, which are more cost-effective.
  
In addition, we also need to remind consumers: plastic crisper can not be put into microwave and oven, because plastic will produce harmful substances to human body at high temperature. In addition, the toughened glass crisper may explode when it encounters extreme cold and extreme heat. At present, the fashionable and green crisper is a heat-resistant glass crisper.