Why is it Important to Keep Mylar Bags Away From Moisture?

Moisture and Mylar Degradation

Mylar bags are made of a thin, flexible plastic film called BoPET (Biaxially-oriented polyethylene terephthalate). This material is resistant to moisture, but prolonged exposure can cause it to break down and become brittle. When Mylar is exposed to high humidity or moisture, it can absorb water, leading to a loss of flexibility and a compromised seal. To prevent this, it’s essential to store Mylar bags in a dry environment, away from any potential moisture sources.

Proper Storage Techniques

To keep Mylar bags away from moisture, store them in a dry, well-ventilated area, such as a pantry or a closet with good airflow. Avoid storing them in a basement or an area prone to moisture, such as a laundry room or a bathroom. When storing food in Mylar bags, make sure the seal is tight and the bag is completely dry before sealing. It’s also essential to use the right type of Mylar bags, specifically designed for food storage and with a thickness of 4-5 mils.

Desiccant and Oxygen Absorbers

Using desiccants and oxygen absorbers can help maintain a dry environment and prevent moisture from accumulating in the Mylar bags. Desiccants, such as silica gel or activated alumina, can absorb excess moisture and help maintain a dry environment. Oxygen absorbers, such as silica gel or iron-based products, can help remove oxygen and prevent the growth of mold and bacteria. By using these products in conjunction with Mylar bags, you can extend the shelf life of your stored food and maintain its quality.