Understanding Food Contact Compliance for Flat Bottom Pouches

When selecting packaging for food products, brands often focus on appearance, durability, shelf life, and cost. However, for international food brands and retailers, one of the most important factors is whether the packaging complies with food contact regulations in the destination market.

Flat bottom pouch is widely used for coffee, snacks, pet food, dry foods, nuts, confectionery, and other food applications because it provides excellent shelf stability, large printing area, and premium appearance. However, behind the attractive design is a complex multilayer structure that must meet strict safety requirements.

A food-grade flat bottom pouch is not defined only by the material used for the inner layer. The complete packaging structure, including the printing film, barrier layer, adhesive, ink, and heat-sealing layer, must be evaluated to ensure that all components are suitable for direct or indirect food contact.

For PACKMIC selling products globally, understanding FDA and EU food packaging regulations is essential. A pouch that complies with regulations in one market may not automatically satisfy requirements in another market.

For European customers, the Declaration of Compliance (DoC) is a key document required for the approval and verification of food packaging products. It provides clear information about whether the packaging complies with relevant EU food contact regulations and whether it is suitable for the intended application.

A complete EU Declaration of Compliance usually includes details such as the regulations the packaging follows, the materials used in the packaging structure, the types of food products it is designed for, and the expected conditions of use, including contact temperature and duration. It should also reference relevant migration test results and identify any restricted substances or specific requirements that need attention.

It is important to understand that a migration test report and a Declaration of Compliance serve different purposes. A migration test report provides testing results based on specific samples, while the DoC is a formal compliance statement issued based on the overall assessment of the packaging materials, manufacturing process, and regulatory requirements. Therefore, a migration test report alone cannot replace a complete Declaration of Compliance.

For European customers, the Declaration of Compliance (DoC) is a key document required for the approval and verification of food packaging products. It provides clear information about whether the packaging complies with relevant EU food contact regulations and whether it is suitable for the intended application.

A complete EU Declaration of Compliance usually includes details such as the regulations the packaging follows, the materials used in the packaging structure, the types of food products it is designed for, and the expected conditions of use, including contact temperature and duration. It should also reference relevant migration test results and identify any restricted substances or specific requirements that need attention.

It is important to understand that a migration test report and a Declaration of Compliance serve different purposes. A migration test report provides testing results based on specific samples, while the DoC is a formal compliance statement issued based on the overall assessment of the packaging materials, manufacturing process, and regulatory requirements. Therefore, a migration test report alone cannot replace a complete Declaration of Compliance.

For example, food packaging regulations in the United States are mainly controlled by the U.S. Food and Drug Administration (FDA) under Title 21 of the Code of Federal Regulations (21 CFR). In Europe, food contact materials are regulated primarily through Regulation (EC) No. 1935/2004 and Regulation (EU) No. 10/2011.

As a professional flexible packaging manufacturer, PACKMIC works with food brands worldwide to provide custom flat bottom pouches that meet international food contact requirements, supported by compliance documentation, quality certifications, and production traceability.

What Makes a Flat Bottom Pouch Food Grade?

The term “food grade” is often used in the packaging industry, but many buyers do not realize what it actually means from a technical perspective.

Food packaging materials are not completely inactive. During storage, especially under conditions involving heat, humidity, or long shelf life, small amounts of substances from packaging materials may potentially migrate into food.

This process is known as migration.

Regulatory organizations around the world establish limits to control migration and ensure that packaging does not negatively affect food safety, product quality, taste, or consumer health.

For flexible packaging, migration can come from different parts of the structure, including:

The outer printed film, which provides branding and mechanical protection.

The barrier layer, such as aluminum foil or metallized PET, which protects products from oxygen, moisture, and light.

The adhesive layer, which bonds different materials together during lamination.

The inner sealing layer, usually PE or CPP, which directly contacts the packaged product.

Each structure is designed according to the product requirements. For example, coffee requires strong oxygen and aroma protection, while snacks may focus more on moisture resistance and mechanical strength.

However, compliance is not determined only by individual materials.

A common misunderstanding is that if every film used in the pouch is food compliant, the final pouch is automatically compliant. In reality, the finished laminated structure must also be evaluated because adhesives, inks, and processing conditions can influence the final packaging performance.

Therefore, professional packaging manufacturers need to control the complete process from raw material selection to printing, lamination, curing, bag making, and final inspection.

FDA Requirements for Food Grade Pouches

For products sold in the United States, food contact packaging materials are regulated by the U.S. Food and Drug Administration (FDA).

The main regulations for flexible packaging are included in Title 21 CFR, especially Parts 174 through 177.

These regulations define which substances can be used in food contact applications and under what conditions.

FDA 21 CFR Part 174 provides general requirements for indirect food additives.

FDA 21 CFR Part 175 covers adhesives and coatings that may be used in food packaging.

FDA 21 CFR Part 177 covers polymers and plastics commonly used in packaging applications.

Many flexible packaging materials used for flat bottom pouches fall under polymer regulations in Part 177.

For example, polyethylene, which is widely used as the heat-sealing food contact layer, is commonly referenced under FDA 21 CFR 177.1520.

Different materials may have different FDA references depending on their chemical composition and intended application.

For brands purchasing packaging from overseas suppliers, it is important to request detailed compliance documentation rather than simply accepting statements such as “FDA approved.”

In the packaging industry, FDA does not approve finished bags in the same way consumers may understand. Instead, FDA regulations authorize specific materials and substances for specific food contact uses.

A professional supplier should be able to provide:

FDA compliance statements

Applicable 21 CFR references

Material information

Production traceability

Supporting migration test reports when required

At PACKMIC, we prepare FDA-related documentation according to customer market requirements and product applications, helping international customers simplify their packaging approval process.

EU Food Contact Regulations for Pouches

The European Union has one of the most comprehensive food packaging regulatory systems in the world.

For flexible plastic packaging, two regulations are particularly important:

Regulation (EC) No. 1935/2004

This regulation provides the general framework for all food contact materials.

It requires that packaging materials:

Do not release substances that could endanger human health.

Do not cause unacceptable changes to food composition.

Do not negatively affect food taste, smell, or appearance.

This regulation applies not only to plastic packaging but also to other food contact materials.

Regulation (EU) No. 10/2011 – Plastic Materials Regulation

For plastic packaging, Regulation (EU) No. 10/2011 is the key regulation.

It establishes requirements for:

Authorized substances used in plastic materials.

Migration testing procedures.

Food simulants.

Temperature and time conditions.

Specific migration limits for certain substances.

The regulation sets an overall migration limit to control the total amount of substances that can transfer from packaging into food.

The commonly referenced limit is:

10 mg per square decimeter of food contact surface.

In certain calculations, this corresponds to 60 mg per kilogram of food.

Besides overall migration, some substances have individual restrictions known as Specific Migration Limits (SML).

Therefore, EU compliance requires more than simply selecting a food-safe plastic film. The entire packaging structure must be evaluated according to the intended application.

Why Declaration of Compliance Is Essential for EU Food Packaging

For European customers, the Declaration of Compliance (DoC) is a key document required for the approval and verification of food packaging products. It provides clear information about whether the packaging complies with relevant EU food contact regulations and whether it is suitable for the intended application.

A complete EU Declaration of Compliance usually includes details such as the regulations the packaging follows, the materials used in the packaging structure, the types of food products it is designed for, and the expected conditions of use, including contact temperature and duration. It should also reference relevant migration test results and identify any restricted substances or specific requirements that need attention.

It is important to understand that a migration test report and a Declaration of Compliance serve different purposes. A migration test report provides testing results based on specific samples, while the DoC is a formal compliance statement issued based on the overall assessment of the packaging materials, manufacturing process, and regulatory requirements. Therefore, a migration test report alone cannot replace a complete Declaration of Compliance.

The test report provides laboratory results, while the DoC is the formal compliance statement connecting the packaging product with applicable regulations.

At PACKMIC, we provide food packaging documentation packages based on customer requirements, including EU Declaration of Compliance, FDA compliance documents, migration testing reports, and production traceability records.