... 2.glass lid seal the glass jar well, it makes it airless 3.food grade glass container Specification: 1 ... :>=0.75 As, Pb content: conforming to food industry restriction6 Pathogenic Bacterium:Negative7 Thermal Tolerance:120 ... 900ml ,750ml, 370ml)Materialglass bottle,glass lid , plastic seal ringSizeLarge size :DIA:10CM*H:21.5CM (lid ... jars with glass lids and plastic seal ring, dry coffee container