m0useanswered grow question 7mo ago I would legit simmer them all in a big as pot with oil then squeeze all the oil out and experiment with the oil.
I;ve used a baby bottle warmer for a hot water bath option. crock pots can also work or vac sealed bags in a pot with oil in the bags but sealed up.
Hard to tell the amount left in the pucks. I would just do double weed to oil ratio and then re-squeeze the left overs and play around with the oil. its not likely to taste great and may give yea a headache from all the plant matter also getting disolved in it.