To effectively preserve food using plastic, the primary method emphasized by experts and regulatory bodies like the U.S. Food and Drug Administration (FDA) is to use food grade plastic containers.
Why Use Food Grade Plastic?
Not all plastic is suitable for contact with food. The key distinction lies in whether the plastic is "food grade."
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Food Grade Container Definition: A food grade container is specifically designed and manufactured not to transfer harmful non-food chemicals into the food it holds. This prevents contamination and ensures the safety and quality of the preserved food.
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The Risk of Non-Food Grade Plastic: According to the U.S. Food and Drug Administration, using non-food grade plastic containers may contaminate food. These plastics can contain substances that can leach into your food, potentially posing health risks or altering the food's taste and smell.
Ensuring Safe Food Preservation with Plastic
Here are some key considerations when preserving food in plastic:
- Look for Certification: Always look for symbols or labels on plastic containers indicating they are food safe or food grade. Common symbols include a cup and fork icon.
- Check for Specific Use: Some food grade plastics are better suited for different preservation methods, such as freezing or microwaving. Ensure the container is appropriate for how you plan to store and use the food.
- Avoid Damaged Containers: Do not use plastic containers that are cracked, scratched, or show signs of wear, as damage can make them harder to clean and potentially increase the risk of chemical transfer.
By strictly using food grade plastic containers, you leverage plastic's barrier properties (protecting against moisture, air, and contaminants) safely, effectively preserving your food.
