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Can honeycomb panels be used in the food industry?

As a honeycomb panel supplier who’s spent the last 12 years working directly with manufacturers across industries, I’ll admit I didn’t always see the food industry as a core fit for our products. For years, we focused on aerospace interior panels, truck trailer flooring, and modular office partitions—spaces where strength-to-weight ratios and impact resistance non-negotiable. But about four years ago, a small craft bakery in Portland, Oregon, reached out after seeing our panels used in a commercial refrigerated display case trade show. They asked a question that made me lean in: “Can your honeycomb panels handle the 34°F humidity in our walk-in cooler, hold up to daily spills of flour and cleaning chemicals, and still look clean enough for our customers to trust?” That conversation sparked a deep dive into food industry needs, and today, it’s one of the most exciting segments of our business. Honeycomb Panel

First, let’s break down what makes honeycomb panels fundamentally suited (or not suited) for food applications. For those who might not know, a honeycomb panel is made of a core of hexagonal cells (originally designed by NASA for space missions to be light yet rigid) sandwiched between two thin, durable face sheets. The core can be aluminum, Nomex aramid, or even food-grade core materials, and the face sheets range from stainless steel to food-grade composite laminates. The key differentiator here is how that structure interacts with food safety regulations, which are way stricter than almost any other industry.

The food industry’s non-negotiables start with food contact safety—meaning any material that touches food, or is adjacent to food in processing, packaging, or display, can’t leach chemicals, harbor bacteria, or hold onto odors. Most people assume honeycomb’s hexagonal crevices would be a hygiene nightmare, but that’s only true if you choose the wrong core or face material. For example, our food-grade honeycomb panels use two critical, tested components: a 304-grade stainless steel face sheet that’s been FDA-approved for direct food contact, and a closed-cell polyethylene core that meets USDA’s Food Safety and Inspection Service (FSIS) standards for non-food contact surfaces in meat and produce processing. Unlike open-cell foams or porous composite cores, closed-cell honeycomb doesn’t absorb moisture, flour dust, cleaning chemicals, or food residues—so bacteria can’t colonize deep inside the structure. That was a game-changer for that Portland bakery, which had previously struggled with wooden cooler walls that absorbed spills and required deep cleaning every shift.

Let’s talk about real-world applications, because theory only goes so far. The craft bakery that reached out to us? They now use our 4-foot by 8-foot honeycomb panels to line their walk-in coolers and build custom display counters for their sourdough loaves and pastries. Before switching, they reported spending 5 hours a week scrubbing and sanitizing their old cooler walls, which often developed mold in corners where spills seeped in. Now, they wipe down the stainless steel honeycomb faces with a mild sanitizer, and a quick rinse gets rid of any flour or egg residue. Since 2020, they’ve had zero food safety violations related to their equipment—something their owner still credits to choosing our panels over traditional materials like plywood or solid stainless steel.

Another big food industry use case? Modular food processing facilities. Many small-scale specialty food producers (think craft chocolate makers, artisanal jam bottlers, or organic grain processors) can’t afford custom steel buildings, so they turn to modular construction to expand. Honeycomb panels are perfect here because they’re lightweight, easy to install, and meet building codes for food processing spaces. Last year, we worked with a small organic chocolate manufacturer in Vermont that needed to add a 2,000-square-foot processing line without halting their existing production. They used our insulated honeycomb panels (the core is filled with food-grade closed-cell foam for thermal insulation) to build walls and a ceiling for their new tempering room. The panels went up in 3 days, compared to the 2 weeks a traditional steel stud and drywall setup would have taken, and they passed their local health department’s inspection on the first try. The tempering room needs to stay at a constant 88°F, and our panels’ insulation keeps energy bills 22% lower than their old setup, according to their operations manager.

Wait, but we can’t gloss over the challenges—this isn’t a one-size-fits-all solution. For example, if you’re working in a high-moisture, high-heat environment like a commercial industrial dishwasher bay, you’d need to choose a corrosion-resistant face sheet. Our standard 304 stainless works for most cases, but for settings with frequent exposure to harsh chlorine-based sanitizers (common in meat processing plants), we offer 316-grade stainless face sheets, which are more rust-resistant and also meet FDA food contact standards. Another consideration: if a panel is going to be used for direct food contact (like a cutting board component or a conveyor belt section), we don’t recommend the aramid honeycomb core—we use food-grade polyethylene or aluminum instead, to avoid any risk of micro-fractures that could shed particles into food.

I’ve also seen honeycomb panels used in food transport, which is a huge, underdiscussed segment of the food industry. Reefer trucks that transport fresh produce, meat, and dairy rely on insulated interior walls to maintain consistent temperatures and reduce fuel costs. Traditional reefer interiors use plywood or fiberglass panels that warp over time, absorb odors, and can develop mold. Our insulated honeycomb panels, lined with food-grade stainless steel on the interior and a scratch-resistant laminate on the exterior, have a 25-year lifespan, don’t absorb odors, and their rigid structure prevents warping even when exposed to repeated temperature swings between 20°F and 70°F. A large regional produce distributor in California switched 12 of their reefer trucks to our panels in 2022, and their driver’s report noted that they haven’t had to deep-clean or deodorize the interior of any of those trucks since installation—something that used to take 8 hours per truck every quarter.

One of the most common questions we get from food operators is: “Are honeycomb panels more expensive than traditional materials?” The short answer is yes, upfront, but the long-term value is hard to beat. Let’s use the Portland bakery as an example: they paid $1,800 for custom honeycomb panels for their cooler walls, while a solid stainless steel setup would have cost $2,200, and a plywood and fiberglass setup would have cost $900. But the plywood setup needed to be replaced every 3 years, at a cost of $1,000, and required $500 worth of cleaning supplies and repairs per year. The solid stainless steel setup, while durable, required $300 per year in specialized cleaning supplies and repolishing. Our honeycomb panels? They’ve had no repairs, only $100 per year in basic cleaning supplies, and they look as good as the day they were installed. Over 10 years, that’s a total cost of $2,800 for our panels, compared to $4,500 for plywood and $5,200 for solid stainless steel. That ROI adds up fast for small food businesses with tight margins.

But here’s the part I want food operators to remember: not all honeycomb panels are created equal. When I first started getting inquiries from the food industry, we tested a lot of off-the-shelf honeycomb panels that didn’t meet FDA standards. They had cores that were open-cell, or face sheets that leached when exposed to acidic foods like citrus or tomato sauce. That’s why we’ve worked with third-party labs over the last four years to refine our food-grade line: every component of our food honeycomb panels is tested for chemical leaching under simulated food contact conditions, for bacterial resistance, and for durability under common food industry cleaning protocols. We also provide all required documentation to health departments and food safety inspectors, which is a huge weight off operators who don’t want to navigate regulatory hoops.

I can’t wrap this up without talking about the future, because the food industry is shifting toward smaller, more specialized operations that prioritize hygiene, sustainability, and efficiency. Honeycomb panels align perfectly with that shift. For example, we’re currently developing a line of 100% recyclable honeycomb panels made from recycled aluminum core and plant-based composite face sheets for organic food processing. That’s important because 60% of food manufacturers now prioritize eco-friendly equipment and materials, according to a 2023 Food Processing survey. The ability to have a durable, hygienic, recyclable material that doesn’t compromise on food safety? That’s a win for everyone.

For anyone in the food industry who’s curious about whether honeycomb panels can work for their operation, my advice is simple: don’t write it off because of old assumptions about the technology’s hygiene. The key is to work with a supplier who specializes in food-grade honeycomb panels, understands FDA and FSIS regulations, and can provide real-world case studies from other food operators. We’ve installed panels in walk-in coolers, processing lines, display counters, and reefer trucks, and every single one of our food clients has reported improvements in hygiene, lower maintenance costs, and better regulatory compliance.

If you’re a food manufacturer, bakery, distributor, or operator looking to upgrade your equipment or facilities, we’re here to help you find the right honeycomb panel solution for your needs. Whether you need custom-sized panels for a walk-in cooler, modular panels for a new processing line, or durable panels for food transport, we can provide the tested, compliant, cost-effective solution you need. Reach out to our team to discuss your project, and let’s figure out how honeycomb panels can work for your food operation.

Aluminum Honeycomb Panel References

  1. U.S. Food and Drug Administration. (2022). Food Contact Substances: Chemical Requirements.
  2. Food Processing. (2023). 2023 Food Equipment Trends Report: Hygiene, Efficiency, and Sustainability Drive Investment.
  3. National Sanitation Foundation International. (2021). Standard 2: Food Equipment Materials.
  4. USDA Food Safety and Inspection Service. (2020). Non-Food Contact Surfaces in Meat and Poultry Processing Facilities.
  5. Honeycomb Association of North America. (2022). Honeycomb Panel Applications in Commercial Construction and Food Industry.

Zhejiang Jusen Building Materials Technology Co., Ltd.
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