Shocker: A Scary Reason Why You Shouldn’t Use 100-yen Plastic Tableware

Inexpensive plastic tableware sold at 100-yen stores such as Daiso, Celia, Candu, etc. are very convenient and many people use them, They are very convenient and many people use them.
  • Lightweight
  • Sturdy
  • Easy to wash
  • Easy to wash
  • Simple
  • Various sizes
Convenient, isn’t it? Yes, it is convenient. I have several of them myself. But despite this convenience, plastic tableware also carries risks that can be detrimental to your health. This article details the health risks of plastic tableware and how to choose and use it more safely.

Dangers of 100-Year-Old Plastic Tableware

Some inexpensive plastic tableware products, such as 100s, are not heat resistant. Of course, not all of them are, but be wary of products that are not microwave-safe or dishwasher-safe. When these products are used in microwave ovens or dishwashers, toxic substances can easily leach out. Also, even if a product is labeled “BPA” free, as described below, the possibility that it actually contains BPA cannot be ruled out.

Health Risks of Plastic Tableware

Toxic chemicals that can leach from plastic tableware include
Bisphenol A (BPA) Environmental hormone that can cause carcinogenic and reproductive harm
Phthalate esters Chemicals that may be especially harmful to children’s development
Polychlorinated biphenyls (PCB)  A chemical known to be carcinogenic
Lead Heavy metals that can harm the nervous system and cognitive function
These chemicals leach out when used at high temperatures or when scratched.

How to recognize safe plastic tableware

When choosing plastic tableware, keep the following in mind.
  • Check the heat resistance label: Plastics with high heat resistance generally have a lower risk of leaching toxic substances.
  • Choose products from quality manufacturers: Products from reputable manufacturers often meet safety standards.
  • Choose products labeled BPA-free: BPA-free products are considered less harmful to your health.
It is also important to note that different types of plastic tableware contain different chemicals that are more likely to leach out. Below is a list of typical types of plastic and the chemicals that are likely to leach out.
Type Heat Resistance Chemicals that are likely to elute
Polyethylene (PE) 100℃ Polychlorinated biphenyls (PCB)
Polypropylene (PP) 100℃ Bisphenol A (BPA)
Polystyrene (PS) 70℃ Bisphenol A (BPA)、Phthalates
Polyethylene terephthalate (PET) 100℃ Bisphenol A (BPA)、Phthalates
Polyvinyl Chloride (PVC) 80℃ Bisphenol A (BPA)、Phthalates
*The heat resistance may differ depending on the product.

Safe use

Be aware of the following points when using plastic tableware. Health risks can be further reduced by being aware of the following points.

Avoid use at high temperatures

Plastic products can release chemicals when exposed to certain temperatures.
  • Heating in the microwave: Use of dishes marked “microwave safe” is out of the question, but even those marked “microwave safe” can leach chemicals from plastic containers, depending on the food in the vessel and the microwave setting time.
  • Do not put boiling water, hot oil, or fried food in the container: Be careful with boiling water and hot oil. Be especially careful with tempura and fried foods, as they will exceed the heat-resistant temperature by a wide margin.
  • Keep away from fire: If a dish is left near a gas range, it will be deformed by the heat. If it is only deformed, it is not a health problem, but the problem is that toxic substances will be leached out.
  • High-temperature washing in dishwashers: Dishwasher use of high temperatures is also a risk for plastic products. Avoid high temperature settings and wash by hand as carefully as possible.

Avoid prolonged food exposure.

  • Acidic foods: Highly acidic foods such as tomato sauce, lemons, oranges, and citrus fruits can cause chemicals to leach out of plastic. Avoid storing these foods in plastic containers for extended periods of time and use glass or ceramic instead. It is not a good idea to serve assorted fleur-de-lis in plastic containers.
  • Oily foods: Foods with high oil content, such as tempura, fried foods, fried foods, croquettes, and other oily meats can also promote leaching of chemicals. Special care should be taken when heating or storing these in plastic products.

Wash carefully after use.

  • Prevent Scratches: When the surface of plastic ware is scratched, chemicals can easily leach out from the scratches. After use, wash gently with a soft sponge and avoid using hard brushes, cleansers, or other abrasives.
  • Cleaning Method: Wash with warm water and dishwashing detergent, rinse thoroughly, and dry completely in a well-ventilated place. Scrubbing with a hard cloth is not recommended.

Other precautions

  • Do not use old plastic dishes, as they may be scratched or deteriorated.
  • If cracks or chips are found on dishes, do not use them.
  • Choose children’s plastic tableware with stricter safety standards than those for adults.

Tableware made of alternative materials

The following materials are alternatives to plastic products. Although they tend to be more expensive than plastic products, it is wise not to use plastic tableware if you are concerned about your health.


Ceramic ware has been used for tableware since ancient times. Because ceramics are made by firing at high temperatures, there is little concern about leaching of chemicals when heating food and drink. Of course, it is also extremely heat resistant. If handled properly, it can be used for many years, but care must be taken when handling it, as it is prone to breakage when dropped or otherwise dropped.


Glass is popular as a food storage container because of its excellent heat resistance and very little elution of chemicals. It is resistant to color and odor and can be kept clean. The high transparency of the glass makes it easy to see the contents and to check the condition of ingredients and food. Some products are easily broken, but there are also many tempered glass products with excellent impact resistance.


Wooden tableware, a natural material, has few chemical problems. Wooden tableware is popular for its light weight, ease of use, and warm texture. Heat is not transferred easily, so hands are less likely to get hot even when handling hot food. It is important to note that wooden tableware absorbs moisture easily and must be dried quickly after use. Regular oil maintenance will prolong the life of your tableware.


Plastic tableware is convenient and easy to use, but despite its convenience, it carries the risk of health hazards if used improperly. If you are concerned about your health, it is best to avoid the use of plastic tableware as much as possible. If you have damaged or old plastic ware in your home, throw it out immediately. We hope this article will help you to lead a rich and healthy lifestyle. Have a good life!