Usage Guidelines for Freshness Preservation Lids
Surface Preparation
-Ensure container rims are smooth, crack-free, and clean before use.
-Wipe both the lid and container opening dry to optimize adhesion.
Proper Application
-Press the center firmly but gently
– excessive force may damage the film.
-Leave 1-2 inches of headspace to allow air expulsion when sealing.
Heat Safety
❌ Never use on stovetops, in ovens, or under broilers.
⚠️ Microwave cautiously: Avoid prolonged high heat to prevent film loosening. Material Care
-Protect from sharp objects and abrasive cleaners.
-Restore slackened lids by hand
-washing in warm water (dishwasher-safe).
Usage Limitations
Not suitable for:
*Carbonated drinks (soda, sparkling beverages)
*Fermenting foods or hot items (reduces seal integrity)
*Avoid narrow/deep containers where air cannot be fully evacuated.
Storage Tips
-Always store sealed containers upright.
-Remember: Vacuum sealing ≠ refrigeration
– perishables still require cooling.