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Frequently Asked Questions

Find answers to common questions about Sunkey Packaging’s products, services, sustainability practices, and customization options. Get the information you need to make informed decisions.

Special Functions

  • Q What is the humidity control range for moisture-proof packaging?

    A Hygroscopic films can stabilize internal humidity at 30%-45%RH, extending the shelf life of dried food products.
  • Q How is packaging integrity ensured after high-temperature sterilization?

    A High-barrier materials (such as PET/AL/PE) are used, and integrity is verified through 121℃/40-minute sterilization tests.
  • Q Does the packaging support microwave heating?

    A Corn retort bags, soybean nipple bags, etc., all support direct microwave heating without unpacking.
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