Kraft Paper Container| Safe Temperatures & Microwave Use Instructions

Kraft paper containers are made from food-grade kraft paper combined with a polyethylene (PE) coating. They are designed for serving cold and hot food, takeaway packaging, and short-time food holding applications, but are not intended for baking or high-temperature cooking.

2. Usage Limitations

To ensure safety and product performance, the following applications are strictly not recommended:

• Oven heating
• Open flame heating
• Air fryer use
• Grilling or barbecue equipment

These conditions may cause material degradation or even fire hazards due to high-temperature exposure.

3. Microwave Use Guidelines

Some kraft paper containers are suitable for short-time reheating only.

Recommended conditions:

• Food temperature ≤ 95°C
• Microwave heating time: 2–3 minutes
• Only for short-time reheating use

Not recommended:

• Heating empty containers
• High-fat food long-time heating
• Continuous high-power heating
• Repeated microwave cycles

4. Recommended Temperature Range

If exposed to temperatures above 95°C for extended periods or high-fat environments, the following may occur:

• Softening of paper structure
• Reduction in PE coating performance
• Container deformation
• Reduced compression strength
• Grease marks may appear

These are normal material behaviors and do not affect food safety.

5. Grease Mark Behavior (Normal Phenomenon)

When used with high-fat foods such as:

• Fried chicken
• French fries
• Roasted meat rice
• Curry rice
• Beef rice

After prolonged contact, slight darkening or translucent marks may appear on the surface.

This is known as Grease Mark / Oil Spot phenomenon, which is a normal characteristic of kraft paper materials and does not affect usability or food safety.

6. Conclusion

This product is recommended for:

• Takeaway packaging
• Catering services
• Ready-to-eat food
• Short-time food holding applications