The keep-fresh covers are not:
- microwave safe
- suitable for perserving
- Store keep-fresh lids in a dry and cool place
- Keep-fresh lids should not be stored near heat generating appliances and/or heaters.
- Relative humidity should not exceed 65%
- Always keep the freshness lids away from direct sunlight and other light sources with UV radiation properties. Direct sunlight and / or UV radiation will cause premature ageing of the product.