Hi,
Since I am a Kosher consumer, I can tell you that any vegetable fat that is
labeled as Kosher and Pareve is just that. Otherwise, it can't be given such
a label. Any contamination of milk, makes it dairy and possibly not Kosher.
So beware of what you are reading. If the product says milk, casein, lactose,
whey, then it contains dairy. Any oils that have a reliable Kosher symbol
without any D or DE next to it is also Pareve.
Hope this helps,
Dina