After peanut butter sits in a jar for a while, the oil separates and floats to the top. Is one permitted to pour out this oil on Shabbat? I'm concerned this might be borer, because this could be considered taking out the bad from the good. Here are some factors that might be relevant:
- There might be a minority of people who would consider the oil "good" (e.g. useful for dipping bread in).
- I personally consider the oil "bad" and would discard it.
- If one eats pure olive oil, there are varying opinions on whether one should say a bracha at all. In other words, there's a question whether oil on its own is edible.