Stainless Steel Is An Important Guarantee For Food Safety?

Food safety begins with strict sanitary conditions, and nickel-containing stainless steel is a high-quality and reliable guarantee for all links in the food chain.

At present, the issue of food supply and food safety is highly valued globally. According to data from the World Health Organization, every year 10% of people get sick from eating contaminated food, and 420,000 people die as a result. Among them, young children are at a particularly high risk.

food safety

Regulatory agencies in various countries attach great importance to food safety, and have introduced relevant laws and regulations to strengthen the supervision of food. For example, the Food Safety Modernization Act in the United States; China amended the Food Safety Act in June 2015, India has strengthened regulations on food contact materials, and Europe has also strengthened the 鈥淢etals and Metals Used in Food Contact Materials and Articles鈥. Alloy Technology Guide.

In the EU, three regulations constitute the food safety regulatory environment:

? “Framework Regulation EC 1935/2004”

The decree stipulates that the materials used in food equipment should not change the taste, quality or color of the food;

These materials should not cause diseases or adversely affect human health;

The decree mainly targets material manufacturers.

? “Machinery Directive EC 2006/42”

  • The regulations stipulate the design and manufacturing methods of food equipment to ensure food safety during processing;
  • This regulation is mainly aimed at equipment manufacturers.

? “Food Hygiene Regulation EC 852/2004”

  • In the preparation process from farm to table, focus on maintaining food safety and maintaining hygienic conditions;
  • It is aimed at food operators, but it also aims to make material and equipment manufacturers accountable.

In short, the purpose of these regulations is to make material manufacturers, equipment manufacturers and food operators share the responsibility of ensuring that food is safe to eat from farm to table.

Food safety investments based on sound science and regulations can help achieve sustainable development goals.

Food safety investments based on sound science and regulations can help achieve sustainable development goals and help solve food pollution problems while ensuring that the food industry receives sufficient returns. One of the investments is the use of nickel-containing stainless steel equipment. Many food-related industries (regardless of their commercial scale, involving food processing, catering, or home cooking) benefit from the hygienic properties of stainless steel while maintaining food safety for consumers throughout the value chain.

Nickel-containing stainless steel does not change the taste or color of food, does not contaminate food, and can provide excellent performance for maintaining food safety through easy and effective cleaning and disinfection.

Stainless steel is designed for hygiene

Cleanliness is the key to hygiene. The smooth, shiny stainless steel surface is very easy to clean and can be maintained for a long time. It can withstand wear, shock and temperature fluctuations, while inhibiting the accumulation of dirt and scale.

The self-healing passivation layer naturally formed in stainless steel provides corrosion protection instead of applying a coating, which may be damaged and degraded. The ability of stainless steel to be easily cleaned and disinfected can effectively and simply remove bacteria. Tests have shown that stainless steel has a low bacterial retention capacity, making it a very attractive material in the food industry. Even if it is reused, stainless steel has impeccable cleanliness. Therefore, stainless steel can meet strict hygiene standards at every stage. The corrosion resistance of stainless steel means that it is inert, does not change the taste or smell of food or beverage products, and can resist the lactic acid formed by the fermentation of acidic foods such as milk or tomatoes.

When designing or selecting food industry equipment, “hygiene” covers many aspects. The manufacturing materials must be able to resist the accumulation of process dirt and must be easy to disinfect and clean between production runs. They must not corrode or give food ingredients harmful to human health. Nickel-containing stainless steel provides all these and more. Their formability, machinability, and weldability enable stainless steel to be processed into complex shapes and components, so that it has good tolerances, which is both practical and economically feasible.

Stainless steel is suitable for all kinds of food

Nickel-containing stainless steel can be widely used in the food industry. Almost all food applications use austenitic stainless steel, including milk and beer. Type 304 is a standard material; fish and meat products may require higher grades, such as type 316L (S31603); super austenitic steel can cope with extreme harshness Conditions such as soy sauce production. Its strong corrosion resistance and easy-to-clean characteristics make stainless steel durable and hygienic. These are two very valuable characteristics in food processing.

1) Stainless steel is widely used in the Italian food industry

Stainless steel meets the specifications of the Italian Ministerial Decree of 1973, the Sanitation Regulations concerning packaging, containers, tools and equipment that come into contact with food or substances for personal use. This specification provides a list of stainless steel grades that can be used in the food industry.

Italian cooking is a perfect example of the functionality of stainless steel. With its hygienic properties, corrosion resistance and beautiful surface treatment, nickel-containing stainless steel has played an important role in the Italian food industry that relies on this effective material. For example, stainless steel is widely used for storage of cocoa butter, cocoa butter and chocolate. The manufacturing facility is equipped with stainless steel storage tanks of various volumes and weights. All storage tanks use Type 304 (UNS S30400) stainless steel specially designed for food industry standards.

Italy’s reputation for gastronomy and its world-renowned design advantages extend to its cooking utensils. Stainless steel has a rustic surface treatment, durability and resistance to dents and scratches, making it an attractive choice. By combining functionality, hygiene, design, and flavor retention (an important part of cookware), stainless steel meets strict specifications. The combination of the expertise, know-how and creativity of Italian designers with the beauty of nickel-containing stainless steel enables them to produce high-quality and exquisite cookware.

2) Application of stainless steel in milking industry

In the milking parlor, nickel-containing stainless steel is everywhere. Here, stainless steel serves the marginal market. For dairy farmers, problems such as cow mastitis and milk contamination can be catastrophic. Hygiene is the most important, and pipes, milking equipment and water tanks need to be carefully flushed and disinfected every day. Stainless steel has the properties of anti-corrosion and cleanliness of excrement. It performs well in this harsh environment and helps achieve the purpose of sanitation and disinfection.

Stainless steel is also essential for keeping milk fresh. Monitor the bacterial count in milk. If there is no very strict control of the bacterial count, it may be rejected. When the milk is squeezed out of the cow’s udder at a temperature of 35掳C, it is quickly cooled to 4-6掳C to prevent the growth of bacteria, and is stored in a stainless steel storage tank usually equipped with a stirring rod or agitator for collection. The heat exchanger is an important part of the dairy industry for cooling and heating, and is used to extract heat from raw milk. In some cases, for example, heat is further used in preheating washing water or space heating. The milk tanker on the truck also uses stainless steel to transport the milk from the milking parlor to the factory for further processing.

Whether the milk is pasteurized for drinking, dried as milk powder, or used to make cheese, yogurt, butter or ice cream, stainless steel equipment must be used to meet very strict hygiene standards.

Although duplex alloys are currently used under more stringent conditions, the main grades used are 304L (UNS S30403) and 316L (S31603) stainless steel.

Food safety has very strict requirements for sanitary conditions, and nickel-containing stainless steel is a high-quality and reliable guarantee for all links in the food chain. Today, more than 25% of total nickel production is used in stainless steel products related to the food and beverage industry. In the food and beverage industry, it is an important guarantee in the food supply chain from farm to table.


Posted by WELLGREEN, the sanitary pipe fittings supplier.