food grade

基本解释

Glass, stainless steel and some plastics are food grade.
玻璃，不锈钢和一些塑料就属于食品级材料。
The container you use needs to be made from a special material, called food grade, in order to avoid leaking problems.
为了避免铅中毒，用来装水的容易要用一种特殊的材料，即所谓的食品级材料，。货柜您使用的需要作出从一个特殊的物质，所谓食品级，为了避免泄漏的问题。
All lubricants used in food processing and packaging plants must be food grade.
食品加工和包装设备中使用的所有润滑剂必须是食品级。

Born from a need to re-create mixed drinks in perfect proportion, Bartendro uses food-grade tubing, pumps and custom-built electronics to pipe liquids out with a measurement accuracy of a milliliter.
ENGADGET
He discovered a trade publication called Flexible Packaging and in it, found a manufacturer in California that could recreate the pouches used by Andros and Materne: a blend of recyclable, food-grade plastic and aluminum, with a resealable pouch that could hold 90 grams of applesauce.
FORBES: Magazine Article
With a population of 4, 500, it takes about 20 minutes to case its tourist offerings, including a McDonald's, for those who want to douse their nature experience with a bit of low-grade fast food.
FORBES: Rocky Mountain High, Canadian-Style