Whether you’re launching a new food product or rethinking your current packaging, the choice between kraft paper and white paper shapes everything from shelf performance to brand perception to end-of-life recyclability. Both are widely used, both can be made PFAS-free, and both can handle greasy or hot foods — but they perform differently, and the trade-offs matter depending on your application.
This guide breaks down how the two materials compare on the three criteria that matter most to food packagers: heat resistance, oil and grease resistance, and sustainability. By the end, you’ll know which paper type fits your food, your brand, and your compliance requirements.
Quick Answer
For high-heat, heavy, or greasy foods like soups, fried items, and delivery meals, unbleached kraft paper is generally the stronger choice — it holds its structure better under moisture and heat, and it carries a lower carbon footprint than bleached white paper. White paper wins when print fidelity and premium branding are the priority, such as for retail salads, deli wraps, or upscale bakery packaging. With the right barrier coating, both can achieve comparable oil resistance.
Heat Resistance: Which Paper Handles Hot Food Better?
Unbleached kraft paper generally outperforms white paper when packaging hot, moist foods. Its denser, more tightly bonded fiber structure gives it greater rigidity under sustained heat and humidity — particularly relevant for soups, noodles, and hot delivery containers that sit in bags during transport. Industry testing has shown kraft paper bowls and boxes maintaining higher structural integrity than white paper counterparts when exposed to continuous moisture at elevated temperatures, particularly once you push past roughly 85–90°C.
White paper is not weak — it performs adequately for many hot food applications — but the bleaching process slightly disrupts fiber density, which can reduce performance at the upper edges of the heat range. For packaging that must hold shape during delivery or stay rigid under steaming food, kraft is the safer structural bet. That said, lamination or coating with PLA or water-based barriers significantly extends heat performance for both materials.
Oil and Grease Resistance: Coatings Do the Heavy Lifting
Neither raw kraft paper nor raw white paper is grease-proof on its own. Both require a barrier coating for packaging oily or fried foods — and as of early 2024, the FDA confirmed that PFAS-based grease-proofing agents have been voluntarily phased out by U.S. manufacturers and are no longer sold for food packaging use. The industry has fully shifted to water-based, PLA (polylactic acid), and plant-based barrier coatings.
Once coated, both materials can achieve strong oil resistance. White paper’s smoother, more uniform surface tends to allow slightly more even coating distribution, which can give it a marginal edge in oil resistance consistency. Kraft paper, while slightly more textured, performs very well with water-based coatings and is often preferred for high-volume production because it tolerates a broader range of coating application conditions without performance loss. For most practical applications — wraps, boxes, bags, bowls — a properly coated kraft or white paper will perform comparably against grease and oil.
When specifying packaging for greasy applications, ask your supplier for the KIT rating — the industry-standard oil resistance scale for paper, running from 0 to 12. A KIT rating of 6 or above is generally adequate for fried food packaging, and both kraft and white paper, when properly coated, can reach the upper portion of that scale.
Sustainability: Kraft Has a Clear Advantage
From an environmental standpoint, unbleached kraft paper holds a meaningful advantage over bleached white paper. The kraft pulping process retains more of the wood fiber’s natural lignin and does not require the multi-stage chemical bleaching that white paper undergoes. Bleaching — even with modern chlorine-free methods using chlorine dioxide or hydrogen peroxide — adds significant energy consumption and chemical processing steps to the production lifecycle, resulting in a noticeably higher carbon footprint per kilogram of paper produced.
Kraft paper is also widely recyclable, compostable (when uncoated or coated with certified compostable barriers), and biodegradable. Its natural brown color requires no dyes or optical brighteners. White paper can also be recycled and composted, but coated or colored white papers may introduce additives that complicate composting — verify end-of-life compatibility with your specific coating supplier before making sustainability claims.
If your brand is working toward FSC (Forest Stewardship Council) certification, BPI compostability, or reducing supply chain emissions, unbleached kraft paper is the lower-effort path. White kraft paper — a bleached variant that retains kraft’s strong fiber structure — exists as a middle ground, offering better print quality than natural brown kraft while still being more sustainable than standard bleached white paper.
Tips and Common Mistakes
Don’t assume kraft paper is automatically grease-resistant. Its natural density provides some moisture resistance for dry goods, but any packaging in direct contact with oily or wet foods needs a proper barrier coating regardless of paper color. Relying on uncoated paper for fried or saucy items is one of the most common sourcing mistakes — and it leads to leaks, soggy failure, and customer complaints.
Don’t overlook PFAS compliance. Some older-stock packaging or overseas-sourced wraps may still use PFAS-based coatings. Always request written documentation confirming PFAS-free barrier materials, especially if you’re selling in U.S. states with active restrictions — the list of states with PFAS laws covering food packaging is growing.
Don’t choose paper color based purely on aesthetics. The visual difference between kraft and white is obvious, but the functional differences are real. If your food is hot, heavy, or greasy and needs to survive delivery time, test kraft first. If color-accurate logo printing or a premium retail feel is the priority, white paper or white kraft paper may justify the trade-off in environmental cost.
Do verify composting compatibility at the system level. A paper labeled ‘compostable’ must match the industrial composting infrastructure your customers actually have access to. An uncoated kraft bag can typically be home-composted; a PLA-coated white paper box usually requires the higher temperatures of industrial composting facilities to break down properly.
Explore more: Explore all packaging materials guides.
kraft paper vs white paper food packaging FAQs
Is kraft paper naturally grease-resistant without a coating?
Kraft paper has some natural moisture resistance due to its dense fiber structure, which works for dry goods with incidental grease contact. For packaging that directly contacts oily or fried foods, a dedicated barrier coating is required — uncoated kraft paper alone will absorb and eventually leak grease.
Is white paper always less sustainable than kraft paper?
Unbleached kraft generally has a lower environmental footprint because it skips the energy- and chemical-intensive bleaching process. White kraft paper (bleached kraft) is a more sustainable option than standard bleached white paper. The sustainability gap narrows when white paper is sourced from certified sustainable forests and uses modern chlorine-free bleaching processes.
Can kraft or white paper food packaging go in the microwave?
Plain, uncoated kraft or white paper is generally microwave-safe for short reheating. Coated papers depend entirely on the coating — water-based and PLA coatings are typically microwave-safe at low-to-medium settings, but always check the manufacturer’s specifications. Packaging with metallic inks or foil laminate layers is never microwave-safe.
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Photo by Clair on Unsplash.