Assess paper for food contact using 6 test points

A bread bag for dry baked goods, wrapping paper for cheese, and burger paper for hot, greasy food all have completely different requirements. Anyone assessing food-contact paper should therefore look not only at color, basis weight, and price per unit. The key is whether the paper is suitable for actual contact with the respective food and the intended use.

For bakeries, cafés, snack bars, and retailers, this assessment is not a theoretical exercise. Suitable paper packaging keeps products clean, helps ensure safe transport, and prevents complaints about greasy, damp, or odorous packaging. At the same time, a clear assessment helps to reorder standard ranges quickly and reliably.

Assessing food-contact paper: The application is what matters

Paper is not all the same. Kraft paper, virgin fiber paper, coated papers, greaseproof qualities, and printed wrapping papers differ not only in appearance. They also react differently to moisture, grease, temperature, and prolonged contact.

The first question is therefore always: Which food comes into contact with which side of the packaging? Dry baked goods in a bakery or bread bag place far fewer demands on the material than a hot, greasy sandwich. With fries, burgers, cheese, sausage, glazed pastries, or marinated dishes, grease or moisture can soak into the paper. In such cases, simple paper qualities are often insufficient.

Duration is also relevant. A bag in which a croissant sits for a few minutes before being eaten is assessed differently from packaging for delicatessen products that is stored refrigerated for several hours. When heat, pressure during transport, or large fill volumes are added, the demands on the material increase further.

The legal framework: Suitability must be verifiable

Materials and articles intended to come into contact with food must not transfer substances to food in quantities that endanger human health, make the composition unacceptable, or adversely affect the taste or smell under normal or foreseeable conditions of use. This principle also applies to paper and cardboard.

For commercial buyers, this means in practice: The word "paper" does not make a product suitable for food contact. The material composition, possible coatings, printing inks, adhesives, and intended application are decisive. In EU law, there is no single, detailed individual regulation for every application of paper and cardboard as there is for some other materials. Manufacturers and suppliers must therefore ensure suitability based on applicable requirements, good manufacturing practice, and appropriate assessments.

Supplier documentation is an important part of procurement. Depending on the product and supply chain, this may include specifications, conformity information, test reports, or usage instructions. A formal declaration of conformity is not required in the same form for every paper product. Nevertheless, for purchasing, it remains a sensible piece of evidence, along with other verifiable product information.

1. Clearly define the type of contact

Direct food contact occurs when the product lies directly on the paper or is wrapped in it. This includes butcher paper, wrapping paper, sandwich bags, bakery bags, or burger paper. In the case of direct contact, a clear approval for food contact is particularly important.

Indirect contact can also be relevant. For example, a box with an inner bag, a paper tray with a liner, or transport packaging may enclose the product for longer periods. The closer the material is to the food and the fewer barriers there are, the more carefully it should be assessed.

For printed papers, the contact side must be explicitly assessed. The printed outer side is often not intended to come into direct contact with food. This is not a detail for the product description, but a requirement for daily use in the business. Employees should know which side faces inward.

2. Realistically assess grease, moisture, and temperature

Many mistakes occur because only the food is considered, not its condition. Cold, dry baked goods behave differently from the same baked goods straight out of the oven or with a greasy filling. Hot grease can penetrate simple layers of paper more quickly. Moist foods soften paper, and acidic or heavily seasoned foods can cause smells and tastes to react more sensitively.

For dry goods, classic paper bags and virgin fiber qualities are often an economical and practical solution. For greasy products, greaseproof or specially designated papers should be used. For moist dishes, a suitable coating, an inner bag, or a food box with an appropriate barrier may be more sensible.

Even for short-term hot contact, the intended temperature range should be documented. Not every paper suitable for dry food is automatically intended for very hot dishes or for applications involving heat. Anyone offering products for reheating or for the microwave needs packaging expressly suitable for this purpose.

3. Pay attention to virgin fiber, recycled content, and barriers

Recycled paper can be attractive from a sustainability perspective, but requires particularly careful consideration when in direct contact with food. Depending on its origin and processing, recycled fibers may contain undesirable substances. Whether recycled paper is suitable for direct contact therefore cannot be determined by its appearance or an environmental label alone.

Virgin fiber paper is a well-justifiable choice for many direct food contacts. However, it is not a blanket guarantee. Coatings, finishes, inks, and the specific intended use also count with virgin fiber paper. Conversely, recycled paper with a suitable functional barrier or in a suitable design can certainly be sensible. However, the approval must relate precisely to that specific version.

When looking at environmentally friendly packaging solutions, it pays to consider the overall system. A thin paper bag is material-efficient, but it is not suitable for every greasy or moist dish. More heavily protected packaging can use more material, but in return reduces grease penetration, product loss, and double packaging. Sustainability and functionality should be assessed together.

4. Also check coatings, printing, and adhesives

The paper base is only one part of the packaging. Coatings often provide grease- or moisture resistance. Printing inks enable labeling and design. Adhesives hold folds, windows, or bags together. All these components can be relevant for food contact.

Fully printed wrapping papers, papers with viewing windows, and coated food boxes deserve special attention. It should be clear which side may come into contact and whether the supplier has assessed the overall design for the intended use. A statement on the paper basis weight alone is not sufficient.

Odour and taste neutrality is just as important in practice. Especially with baked goods, tea, coffee, delicatessen products, and confectionery, foreign odours can quickly become noticeable. When introducing new packaging, a brief practical test with the actual product is recommended. The test does not replace a conformity assessment, but it shows early on whether odour, grease penetration, or handling becomes problematic in everyday sales.

5. Systematically file labels and supplier data

For recurring procurement, simple documentation per item pays. The item description, material, format, intended contact, usage limits, and available supplier evidence should be stored. For products with special requirements, this should include information on grease contact, temperature, microwave suitability, or the correct contact side.

This saves time when employees change, branches need to work consistently, or a customer asks follow-up questions. Documentation is also helpful when changing product ranges: A visually similar bag may have a different paper quality, coating, or approval.

For standard items with high consumption, batch and supply security also count. Procurement should not only compare the unit price, but also check whether the required quality is permanently available. Inexpensive packaging causes additional costs if it tears under heavy demand, becomes greasy, or cannot be used due to missing documentation.

6. Use the everyday test before placing a large order

Before placing a larger order, a test under real conditions is recommended. Fill the packaging with the usual portion size, close or fold it as you would in sales, and check it after the typical shelf life. For takeaway offers, a brief transport test is also part of this.

Pay attention to four points: Does the packaging retain its shape? Does grease or moisture leak out? Does the odour or taste change? Is handling at the point of sale fast enough? Especially during peak times, a bag or wrapping paper must function reliably without creating additional work steps.

Depending on the business, a suitable item can look very different. The bakery often needs inexpensive, food-safe bags for dry and lightly greasy goods. The snack bar usually needs higher grease resistance for burgers and snacks. Delicatessen and catering must additionally consider longer contact times, refrigeration, and clean product transport.

Anyone who selects paper packaging suitable for the food is not simply buying a consumable. They are creating a reliable process at the counter, point of sale, and delivery route—and that is exactly where it shows whether material, price, and application really fit together.