瓶子由高密度自然色的聚乙烯材料制成，可回收，但是不能高溫高壓消毒或滅菌。乙烯塑料蓋子有班輪，以確保完全匹配。12只/箱 The bottles are made from a food-grade, high-density polyethylene in a natural color. They are recyclable, but not sterile or autoclavable. The plastic caps have a vinyl liner to ensure a tight fit. Pkg. of 12.