Kraft Paper Bags for Food Packaging: Uses, Benefits & What Businesses Should Know

What makes kraft paper bags ideal for food packaging?

Kraft paper stands out because of its high tear resistance, breathability, and natural fiber strength. Unlike recycled paper, kraft is made from virgin wood pulp through the sulfate process, which preserves long cellulose fibers—giving the paper exceptional tensile strength and durability. This makes it strong enough to carry heavy items like bagels, sandwiches, or produce, yet porous enough to allow moisture vapor to escape, keeping crispy foods crisp.

In a Reddit thread on r/Bagels, a user asked: “Looking for kraft paper bags that don’t fall apart with fresh bagels.” That’s a real-world concern: high-moisture foods can weaken standard bags. The solution lies in choosing the right basis weight (GSM) and, if needed, a moisture-resistant coating. Foodservice operators need bags that balance integrity, appearance, and cost—and kraft delivers across all three when specified correctly.

Strength and durability: GSM, burst resistance, and tear strength

The strength of a kraft paper bag is primarily determined by its grammage (GSM)—grams per square meter—and its burst and tear resistance (measured by TAPPI standards). Lightweight bags (30‑40 GSM) are fine for dry goods like pastries or bread slices, but fail with heavy or moist items. Mid‑weight (50‑70 GSM) is the sweet spot for most takeout and retail applications, offering a good balance of strength and cost. Heavy‑weight (80+ GSM) is used for bulky groceries, large orders, or items with sharp edges (like crusty bread).

Tear resistance is also influenced by the fiber orientation and the presence of wet‑strength additives. Many food-grade kraft bags incorporate a small amount of resin to maintain integrity when exposed to condensation from hot food. For example, a standard burger bag typically uses a 55‑60 GSM kraft with a grease‑resistant coating, while a bread bag for artisan loaves might use a 70‑80 GSM uncoated kraft to allow breathability while supporting the weight of a heavy sourdough.

Appearance and branding: why kraft’s natural look works for cafes and bakeries

Kraft paper has a warm, earthy, and minimal aesthetic that resonates with modern consumers. Surveys show that 73% of consumers find paper packaging more visually appealing than plastic, and that perception strongly influences purchase intent—especially in premium segments like specialty coffee and artisan bakeries. The natural brown (or white bleached kraft) conveys authenticity, craftsmanship, and sustainability, making it a favorite for brands that position themselves as natural or eco-conscious.

For coffee shops, a custom‑printed kraft bag with a logo transforms a functional item into a brand touchpoint. Bakeries often choose white kraft for a clean, upscale look, or natural brown for a rustic feel. The texture of kraft also accepts printing well—from simple one‑color logos to full‑color designs—making it highly versatile for branding. And because kraft is perceived as more “natural” than glossy coated paper, it aligns with the clean‑label movement in food.

Sustainability: biodegradability, recyclability, and compostability

Kraft paper bags are biodegradable, recyclable, and compostable—provided they are free from plastic linings or synthetic coatings. In a 2026 study, PHA‑coated brown kraft paper achieved 100% biodegradation within 9 days under composting conditions, demonstrating that even coated kraft can be fully broken down if the coating is biobased. Uncoated kraft is even more straightforward: it can be recycled in standard paper streams and breaks down in home compost within weeks.

However, not all “kraft” bags are equal. Some have a thin polyethylene (PE) layer to resist grease, which makes them non‑recyclable and non‑compostable. Businesses seeking genuine sustainability should look for aqueous‑based or PHA coatings that offer grease resistance without compromising compostability. The FDA maintains a list of food‑contact substances that are safe and compliant—always verify your supplier’s materials meet local food contact regulations.

Customization options: printing, sizes, and coatings

Customization goes beyond printing a logo. Kraft bags come in a range of sizes (from small pastry bags to large grocery sacks), gusset widths, and closure styles (flat or folded tops, with or without handles). The most common customisations include:

• Printing: Flexographic or digital printing for logos, patterns, or nutritional information.
• Coatings: Grease‑resistant (aqueous or PE), moisture‑barrier, or breathable (uncoated).
• Reinforcements: Reinforced bottom for heavy loads, or a tear‑resistant patch.
• Handles: Twisted paper handles, flat handles, or die‑cut handles for retail.

For foodservice, the most requested custom features are branded printing on the front panel and grease‑resistant inner coating for greasy items like burgers or fried chicken. With modern digital printing, even small batches can be customized cost‑effectively, allowing independent cafes and bakeries to compete with larger chains on packaging appeal.

Tips: Learn more about paper bag sizes by Paper Bag Sizes Chart: Standard Dimensions & Capacity Guide.

Applications across foodservice: bakery, coffee shops, restaurants, fast food, grocery, takeaway, dry food, sandwiches, bread

Kraft bags serve a wide spectrum of food categories—each with distinct requirements:

For each application, the right bag combines the correct GSM, coating, and construction to maintain food quality and customer satisfaction. A bakery, for instance, might use lightweight uncoated bags for croissants but switch to a heavier coated bag for filled sandwiches. The key is to match the bag to the food’s moisture and oil profile.

Grease and moisture resistance: coated vs. uncoated kraft

The single biggest complaint about kraft bags is grease staining and structural failure from oil. Uncoated kraft absorbs oil quickly, leading to unsightly spots and potential bag failure. For foods with moderate oil (like muffins or cookies), uncoated kraft may be acceptable. For fried foods, burgers, or saucy sandwiches, a coating is essential.

Two primary coating types dominate: PE (polyethylene) and aqueous‑based coatings. PE provides excellent grease resistance and a complete barrier, but it renders the bag non‑recyclable and non‑compostable. Aqueous coatings, often made from plant‑based materials, offer comparable grease resistance while maintaining compostability—they can achieve a kit rating of 12 (excellent oil resistance) and a Cobb value as low as 16 g/m² (water absorption). For businesses prioritizing sustainability, aqueous‑coated kraft is the clear winner, though it may be slightly more expensive.

Some manufacturers also produce PHA‑coated kraft, which is fully biodegradable and has been proven to break down within days in industrial composting. This is a promising alternative for eco‑conscious brands that still need high‑performance grease protection.

How to choose the right kraft paper bag for your business

Start by assessing your menu: what foods will go in the bag? Rate each item by oiliness, moisture, weight, and sharpness. Then consider your hold time—if food sits in the bag for over 15 minutes, moisture and grease have more time to penetrate. For short‑hold (under 10 minutes), uncoated mid‑GSM kraft may suffice. For delivery or extended carryout, coated bags are safer.

Next, evaluate branding and presentation. If you want a premium look, consider white kraft or custom printing. If sustainability is a key selling point, opt for aqueous‑coated or uncoated bags and make that claim visible on the packaging. Also factor in storage: kraft bags should be stored in a dry area to prevent moisture absorption before use.

Finally, test before bulk ordering. Pack your actual food items in sample bags, simulate delivery conditions (including shaking and stacking), and inspect for grease bleed, structural integrity, and customer feedback. A small test run can save you from costly complaints later. Working with a packaging supplier that offers custom testing and consultation ensures you get the right bag for your specific needs.

Notes: Contact Maibao Package expert, and leave the worries of choice behind.

Frequently Asked Questions