1: The contact surface of food production process must be non-toxic, harmless and non-residual, which has the corresponding standard.
2: workshop machines are more or less useful lubricants, grease will occasionally drip down to the product or workbench surface, which violates the first.
3: ordinary lubricants, we all know that heavy metals and other organic carcinogens are very high. If the contamination to food, you think about the disgusting?
4: Even if not directly contaminated to the food, get to the food contact surface, may cause the product heavy metal exceeds the standard, when the tea lead exceeds how to come? Is the vapor exhaust? I said no, the tea mountain are far away from the highway, the lead in tea is the tea machine iron and tea contact caused.
5: food-grade lubricants, indicating that the lubricant is free of heavy metals and other toxic and harmful substances. Even if accidentally contaminated to the impact on human health is also tiny.
6: Food-grade lubricants are really expensive. Expensive enough that we can not afford to use,, I used to use soybean oil instead, we have their own tricks.