Ziploc brand Containers have always been microwave safe for defrosting and reheating in the microwave. This includes both Ziploc brand Containers and Ziploc brand Twist 'n Loc Containers.
Ideal for lunches on the go
Polypropylene (Plastic), ClearTint PP Blue 5733 (Dye);
Use as directed in microwave, freezer and dishwasher.
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