Food contact materials

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Food contact material pictogram (left) on a plastic food container in Hong Kong HK Plastic Recycling mark black food container Resin identification code 1 PET in Feb-2014.JPG
Food contact material pictogram (left) on a plastic food container in Hong Kong

Food contact materials or food contacting substances (FCS) [1] [2] are materials that are intended to be in contact with food. These can be things that are quite obvious like a glass or a can for soft drinks as well as machinery in a food factory or a coffee machine.

Contents

Food contact materials can be constructed from a variety of materials, including plastics, rubber, paper, coatings, metal, etc. In many cases, a combination is used; for example, a carton box for juices can include (from the inside to the outside) a plastic layer, aluminum, paper, printing, and top coating.

During contact with the food, molecules can migrate from the food contact material to the food, for example, via blooming. Because of this, in many countries, regulations are made to ensure food safety.

Food safe symbol

The wine glass and fork symbol EU food contact material symbol.svg
The wine glass and fork symbol

The international symbol for "food safe" material is a wine glass and a fork symbol. The symbol indicates that the material used in the product is considered safe for food contact. This includes food and water containers, packaging materials, cutlery etc. [3] The regulation is applicable to any product intended for food contact whether it be made of metals, ceramics, paper and board, and plastics or the coating. [4] Use of the symbol is more significant in products which should be explicitly identified whether food safe or not, i.e. wherever there is an ambiguity whether the container could be used to hold foodstuffs. The symbol is used in North America, Europe and parts of Asia. It is mandatory for products sold in Europe after the Framework Regulation EC 1935/2004. [5] [6] [7] [8]

In plastic containers, over and above the prescribed resin identification codes (viz; Resin-identification-code-1-PETE.svg , U+2674 DejaVu Sans.svg , Resin-identification-code-5-PP.svg , Resin-identification-code-6-PS.svg ), the food safe assurance is required because the resin identification codes do not explicitly communicate the food safe property (or more significantly, the lack of it).

Even though the legal requirement in various nations would be different, the food safe symbol generally assures that:

  1. The container surface is free of any toxic contaminants which could be contacted from the manufacturing process.
  2. The container material shall not potentially become a source of toxic contamination through usage (degeneration). This is assured by estimating and regulating the "migration limits" of the material. In EU regulation, the overall migration is limited to 10 mg of substances/dm² of the potential contact surface. The specific migration for various materials would be different for different temperature levels (of food as well as storage) and for different food items depending on variables such as pH of the food stuff. The toxicity considerations of a specific material may include the carcinogenity of the substance. The regulations governing these aspects may vary in different nations. [5] [9] [10]

The "food safe" symbol doesn't guarantee food safety under all conditions. The composition of materials contacting foodstuffs aren't the only factor controlling carcinogen migration into foodstuffs; there are other factors that can have a significant role in food safety. Examples include: the temperature of food products, the fat content of the food products and total time of contact with a surface. The safety of foam food containers is currently debated and is a good example of all three of these factors at play. Polystyrene may melt when in contact with hot or fatty foods and may pose a safety risk. In the United States, materials in contact with food may not contain more than 1% residual styrene monomers by weight (0.5% for fatty foods). [11]

Bisphenol A Diglycidyl ether-based epoxy coatings are extensively used for coating the inside of cans which come into contact with food and are thus food contact materials. The materials and analogues and conjugates have been extensively tested for and analytical methods developed. [12] [13]

Legislation

European Union

The framework Regulation (EC) No. 1935/2004 [14] applies to all food contact materials. Article 3 contains general safety requirements such as not endanger human health, no unacceptable change in the composition and no deterioration of the organoleptic characteristics. Article 4 set out special requirements for active and intelligent materials. Article 5 specifies measures for groups of materials that may be detailed in separate regulations of directives. Member States may maintain or adopt national provisions (Article 6). [15] Articles 7–14 and 22–23 deal with the requirements and application for authorisation of a substance, modification of authorisation, the role of the European Food Safety Authority, the Member States and the Community. Article 15 is about labeling of food contact materials not yet in contact with food. Article 16 requires a declaration of compliance and appropriate documentation that demonstrate compliance. Articles 17–21 deal with traceability, safeguard measures, public access of applications, confidentiality, and data sharing. Article 24 sets out the inspection and control measures.

Specific measures for materials and articles such as ceramics, regenerated cellulose, plastics, gaskets and active and intelligent materials, and substances such as vinyl chloride, N-nitrosamines and N-nitrostable substances in rubber, and epoxy derivatives, exist. [16]

EU No 10/2011 is applicable regulation for all the Food contact material or Article made up of Plastics.

United States

The U.S. Food and Drug Administration (FDA) considers three different types of food additives:

The food contact materials are described in the Code of Federal Legislation (CFR): 21 CFR 174 – 21 CFR 190. Important starting points are:

To this materials additives may be added. Which additives depend on the additive and on the material in which it is intended to be used. There must be a reference to the paragraph in which the additive is mentioned and the restrictions (for example only to be used in polyolefines) and limitations (max 0.5% in the final product) must be respected. See below for part in which additives are described: 21 CFR 170 Food additives

Polymers or additives can also be regulated in other ways with exemptions; for example:[ clarification needed ]

See also

Related Research Articles

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<span class="mw-page-title-main">Food irradiation</span> Sterilization of food with ionizing radiations for enhanced preservation and longer shelflife

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<span class="mw-page-title-main">E number</span> Codes for food additives

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<span class="mw-page-title-main">Polystyrene</span> Polymer resin widely used in packaging

Polystyrene (PS) is a synthetic polymer made from monomers of the aromatic hydrocarbon styrene. Polystyrene can be solid or foamed. General-purpose polystyrene is clear, hard, and brittle. It is an inexpensive resin per unit weight. It is a poor barrier to air and water vapor and has a relatively low melting point. Polystyrene is one of the most widely used plastics, with the scale of its production being several million tonnes per year. Polystyrene is naturally transparent, but can be colored with colorants. Uses include protective packaging, containers, lids, bottles, trays, tumblers, disposable cutlery, in the making of models, and as an alternative material for phonograph records.

<span class="mw-page-title-main">Steel and tin cans</span> Sealed container for storage of foods

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<span class="mw-page-title-main">Packaging</span> Enclosure or protection of products for distribution, storage, and sale

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<span class="mw-page-title-main">Bisphenol A</span> Chemical compound used in plastics manufacturing

Bisphenol A (BPA) is a chemical compound primarily used in the manufacturing of various plastics. It is a colourless solid which is soluble in most common organic solvents, but has very poor solubility in water. BPA is produced on an industrial scale by the condensation reaction of phenol and acetone. Global production in 2022 was estimated to be in the region of 10 million tonnes.

<span class="mw-page-title-main">Directive 67/548/EEC</span>

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<span class="mw-page-title-main">Food safety</span> Scientific discipline

Food safety is used as a scientific method/discipline describing handling, preparation, and storage of food in ways that prevent foodborne illness. The occurrence of two or more cases of a similar illness resulting from the ingestion of a common food is known as a food-borne disease outbreak. This includes a number of routines that should be followed to avoid potential health hazards. In this way, food safety often overlaps with food defense to prevent harm to consumers. The tracks within this line of thought are safety between industry and the market and then between the market and the consumer. In considering industry-to-market practices, food safety considerations include the origins of food including the practices relating to food labeling, food hygiene, food additives and pesticide residues, as well as policies on biotechnology and food and guidelines for the management of governmental import and export inspection and certification systems for foods. In considering market-to-consumer practices, the usual thought is that food ought to be safe in the market and the concern is safe delivery and preparation of the food for the consumer. Food safety, nutrition and food security are closely related. Unhealthy food creates a cycle of disease and malnutrition that affects infants and adults as well.

<span class="mw-page-title-main">Plastic bottle</span> Narrow-necked container

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<span class="mw-page-title-main">1,2-Cyclohexane dicarboxylic acid diisononyl ester</span> Chemical compound

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<span class="mw-page-title-main">Disposable food packaging</span>

Disposable food packaging comprises disposable products often found in fast-food restaurants, take-out restaurants and catering establishments. Typical products are foam food containers, plates, bowls, cups, utensils, doilies and tray papers. These products can be made from a number of materials including plastics, paper, bioresins, wood and bamboo.

<span class="mw-page-title-main">Plastic</span> Material of a wide range of synthetic or semi-synthetic organic solids

Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be molded, extruded or pressed into solid objects of various shapes. This adaptability, plus a wide range of other properties, such as being lightweight, durable, flexible, and inexpensive to produce, has led to their widespread use. Plastics typically are made through human industrial systems. Most modern plastics are derived from fossil fuel-based chemicals like natural gas or petroleum; however, recent industrial methods use variants made from renewable materials, such as corn or cotton derivatives.

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<span class="mw-page-title-main">Packaging waste</span> Post-use container and packing refuse

Packaging waste, the part of the waste that consists of packaging and packaging material, is a major part of the total global waste, and the major part of the packaging waste consists of single-use plastic food packaging, a hallmark of throwaway culture. Notable examples for which the need for regulation was recognized early, are "containers of liquids for human consumption", i.e. plastic bottles and the like. In Europe, the Germans top the list of packaging waste producers with more than 220 kilos of packaging per capita.

References

  1. "Packaging & Food Contact Substances (FCS)". Food and Drug Administration . 4 April 2024.
  2. https://www.mpo-mag.com/contents/view_online-exclusives/2019-08-13/understanding-food-grade-vs-biocompatibility-for-medical-device-materials/
  3. "Food standards agency. "Food contact materials: Your Questions Answered"". Archived from the original on 10 December 2011. Retrieved 17 January 2019.
  4. "Europa. European Union Reference Laboratory for Food Contact Materials". Ihcp.jrc.ec.europa.eu. 9 October 2018. Retrieved 17 January 2019.
  5. 1 2 "Europa. Food Contact Materials – appels". Ec.europa.eu. 29 May 2009. Retrieved 17 January 2019.
  6. "Europa. Food safety". Ec.europa.eu. 28 February 2018. Retrieved 17 January 2019.
  7. "Business Link. "Food labelling and packaging in international trade"". Businesslink.gov.uk. Retrieved 17 January 2019.
  8. "Dolceta Online Consumer Education. "Food Contact Material."" (in Maltese). Dolceta.eu. 13 September 2018. Retrieved 17 January 2019.[ permanent dead link ]
  9. Food and Drug Administration. "Regulatory Report: Assessing the Safety of Food Contact Substances."
  10. Food and Drug Administration. "Regulatory Report: FDA's Food Contact Substance Notification Program".
  11. "Sec. 177.1640 Polystyrene and rubber-modified polystyrene". Code of Federal Regulations, Title 21—Food and Drugs, Subchapter B—Food for Human Consumption. U.S. Food and Drug Administration. Retrieved 4 April 2014.
  12. Lestido-Cardama, Antía; Sendón, Raquel; Rodríguez Bernaldo de Quirós, Ana (1 November 2022). "Tentative identification of BADGE derivatives in epoxy type coatings in a model sample: a beverage can". Journal of Coatings Technology and Research. 19 (6): 1893–1900. doi:10.1007/s11998-022-00662-6. ISSN   1935-3804. S2CID   251912604.
  13. Beszterda, Monika; Tądrowska, Magdalena; Frański, Rafał (1 November 2022). "Multi-detection method for the fast screening of bisphenol A diglycidyl ether conjugates in the can-coating material". Journal of Coatings Technology and Research. 19 (6): 1901–1907. doi:10.1007/s11998-022-00668-0. ISSN   1935-3804. S2CID   252213795.
  14. Regulation (EC) No. 1935/2004 of the European Parliament and of the Council of 27 October 2004 on materials and articles intended to come into contact with food and repealing Directives 80/590/EEC and 89/109/EEC, Official Journal of the European Union L338, 4–17 (2004)
  15. website on food contact materials
  16. Legislative list of food contact materials in the European Union

Further reading