To understand the quality differences between bamboo fibre tableware and ordinary melamine tableware, the Municipal Consumer Protection Commission conducted a comparative experiment on 30 pieces of melamine tableware sold in the market (16 pieces online and 14 pieces offline), including 17 pieces of bamboo fibre tableware and 13 pieces of ordinary melamine tableware, with prices ranging from 7.9 RMB to 89 RMB.

In this comparative test, the Shanghai Institute of Quality Supervision, Inspection and Technology was commissioned to test the samples for migration of harmful substances (including special high temperature conditions), material quality, durability and decolourisation.

The results found that

(i) The migration of hazardous substances complied with national standards.

(ii) One sample was detected with prohibited substances.

(iii) 5 samples produced impact cracks after testing for resistance to hot and humid environments.

(ii) 44 samples were poorly resistant to contamination.

(5) The migration of hazardous substances varied greatly during the special high temperature test.

1

Migration of harmful substances

The raw materials, inks, adhesives and additives of the products do not volatilise harmful substances, including melamine and formaldehyde. The national standard stipulates the upper limit requirements for the total migration and specific migration of melamine and formaldehyde, where the total migration is less than or equal to 10mg/dm2, the specific migration of melamine is less than or equal to 2.5mg/kg and the total specific migration (in terms of formaldehyde) is less than or equal to 15mg/kg.

//Findings

All 30 samples met the requirements of the standard. Ltd. produced a bamboo fiber children's dinner plate pony (nominal specification model: ZXW1989) taken from Taobao Hongyi Life Museum. The product had no contraindications or warnings such as age, and the specific migration level of melamine was 1.5mg/kg. Although it met the national requirements for the routine hygienic and safe use of melamine resin, it exceeded the relevant national standards for the production of plastic materials or products in contact with infants and young children (0-3 years).

2

Material

/ test findings

The surface and inner layers of 28 samples were made of melamine-formaldehyde resin, while urea-formaldehyde resin and polyurethane were detected in 2 samples. The melamine imitation porcelain dinner plate produced by Guangzhou Haonai Daily Products Co., Ltd. had five compartments (nominal specification: 36*26*2.8), and its inner main material was tested to contain urea-formaldehyde resin, but urea-formaldehyde resin is not in the list of plastic resins for food contact products allowed by national standards, and formaldehyde and urea are easily precipitated during use, making it less safe and durable. The data shows that the main material inside and outside the bamboo fibre tableware is melamine formaldehyde resin, with only a certain percentage of bamboo fibre filler added, which is not essentially different from ordinary melamine tableware.

Consumer tips

1. Purchase

(1) Check whether the tableware has any colour difference, spots or miscellaneous colours, whether the tableware has smooth surface work and whether the bottom enterprise needs to be flat. If the surface of the tableware has applique, check whether its pattern design can be clear, there is no wrinkle or bubble.

2) smell the tableware irritating smell; available white paper towels repeatedly wipe the tableware coloured part, determine whether there is discoloration and other phenomena, generally choose white or light-coloured tableware is safer.

(3) rational view of product promotion, some play "green", "environmental protection", "safe" and other bamboo fiber tableware concept, in fact, the essence of Miami tableware.

2. Use

1) Strictly follow the product instructions, avoid high temperature conditions, especially not microwave heating, do not use in a temperature difference environment, do not use acidic, oily food in high temperature for a long time.

2) When cleaning melamine tableware, try to use softer rags, do not use strong acid and alkali detergents and do not use steel wire cleaning balls to avoid wiping the tableware and damaging the surface structure.

3) If there are problems with the melamine tableware in terms of obvious discolouration or cracks, it must be replaced in time.

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