The 200 gm round Lug Glass Bottle with Lug Neck is 100% toxic free and 100% lead free, high-quality, clear (flint), FSSC 22,000 certfied, food-grade certified, and microwave and dishwasher safe. These glass bottles are also inert and unreactive and prevent chemical leaching into the packed product. The glass bottle is used for packing ketchup and sauces.