Industry guide
Corrugated packaging for food products
Food packaging has stricter requirements than general corrugated shipping. From FDA compliance and food-safety certifications to moisture barriers and grease-resistant coatings, there is more to specify — and more to get wrong. This guide covers what buyers need to know when sourcing corrugated packaging for food products.
What makes food-grade corrugated different
Not all corrugated board is suitable for food contact. Standard corrugated uses recycled fiber, general-purpose adhesives, and inks that may not meet FDA requirements for direct food contact. Food-grade corrugated is manufactured under controlled conditions with materials specifically approved for food packaging.
The key differences are in the fiber source (virgin vs. recycled), the adhesives and inks used, the manufacturing environment (sanitation, pest control, contamination prevention), and any coatings or barriers applied for moisture or grease resistance.
Even if the food product is wrapped or bagged inside the box, many food companies and retailers require the outer corrugated to meet food-safety standards — especially for produce, frozen foods, and bakery items where the box may contact the product directly.
Certifications for food packaging
If you are packaging food products, your corrugated supplier should hold one or more of these certifications. Ask for documentation — not just a claim on a website.
SQF (Safe Quality Food)
A GFSI-recognized food safety management certification. SQF-certified corrugated plants follow documented procedures for contamination prevention, pest control, allergen management, and traceability. Many grocery retailers and food manufacturers require SQF certification from their packaging suppliers.
AIB International
AIB inspections evaluate plant sanitation, pest management, operational methods, and maintenance. An AIB-audited corrugated facility has been assessed for food safety practices. While not a certification in the same sense as SQF, an AIB audit score is widely recognized in the food industry.
FDA compliance
Corrugated packaging that comes into direct contact with food must comply with FDA regulations (21 CFR 176). This covers the types of adhesives, inks, coatings, and recycled fiber content that can be used. Not all corrugated board is FDA-compliant — you need to specify this requirement when ordering.
BRC Packaging (BRCGS)
A global standard for packaging materials. BRC certification covers hazard analysis, quality management, and process control specific to packaging manufacturing. Required by many international food brands and retailers.
Coatings and barrier treatments
Many food products require corrugated boxes with special coatings to resist moisture, grease, or contamination. Here are the most common options and what to consider for each.
Wax coating (curtain coated or cascaded)
Applied to the corrugated surface to provide moisture resistance. Common in produce packaging where boxes are exposed to ice, humidity, or cold storage. Wax-coated boxes resist softening but are more difficult to recycle.
Trade-off: Strong moisture barrier but limits recyclability.
Wax alternative / water-resistant coatings
Newer coatings that provide moisture resistance without traditional wax. These are typically repulpable (recyclable) and increasingly preferred by retailers and sustainability-focused brands.
Trade-off: Recyclable alternative to wax. Performance varies by formulation.
Grease-resistant barriers
Applied to the inside surface of boxes for greasy or oily food products (pizza, fried foods, baked goods). Prevents grease migration through the board. Available as coatings or laminated barrier layers.
Trade-off: Essential for greasy foods. May affect recyclability depending on barrier type.
Anti-microbial treatments
Specialty treatments that inhibit bacterial growth on the packaging surface. Used in some fresh food and produce applications. Less common than wax or grease barriers but growing in adoption.
Trade-off: Niche application. Higher cost and limited supplier availability.
Produce and fresh food packaging
Produce packaging is one of the most demanding applications for corrugated. Boxes need to withstand cold storage, humidity, ice exposure, and stacking loads — often simultaneously. The combination of moisture and weight can degrade standard corrugated rapidly, which is why wax-coated or wax-alternative boards are standard in this segment.
Ventilation is another critical factor. Produce boxes typically include die-cut hand holes and ventilation openings to allow airflow for cooling. The size and placement of these openings affect both the structural strength of the box and the cooling efficiency of the product inside.
- Specify wax-coated or wax-alternative board for cold-chain and wet environments.
- Design ventilation openings for adequate airflow without compromising stacking strength.
- Use Mullen-tested board (burst strength) rather than ECT for produce — puncture resistance matters more in rough handling.
- Confirm the supplier has experience with produce packaging specifically — not all food-grade plants handle wax lines.
- Ask about palletization and how the box dimensions work with standard produce pallet configurations.
Questions to ask food packaging suppliers
When evaluating corrugated suppliers for food packaging, these are the questions that separate capable food-grade operations from general-purpose box plants.
What food-safety certifications do you hold? (SQF, AIB, BRC, FDA-compliant materials)
Is your facility audited for food contact packaging? How often?
What fiber source do you use — virgin kraft, recycled, or a blend? What percentage?
Are your inks, adhesives, and coatings FDA-compliant for direct food contact?
Do you offer wax-coated or wax-alternative board for cold-chain applications?
Can you provide a Certificate of Compliance or material data sheets for food contact?
What contamination prevention measures are in place at your plant?
Source food-grade packaging
Find food-grade corrugated suppliers
Browse the supplier directory to find corrugated manufacturers with food-safety certifications and experience in food and produce packaging.