I have 4 or 5 bottles of olive oil (none are pomace but some are extra virgin and some are not) with a little bit of oil at the bottom. Can I combine the left overs in the bottles to use in a batch?
I do all the time. Every time I empty a bottle of liquid oil, I drain it into the next bottle, using a funnel. I prop it up and let it sit for 5 minutes it so. I sell, so I go through a lot of oil on a regular basis.