If you want to extract oil for edibles I would recommend doing a QWET (Quick Wash Ethanol Tincture). How you perform it dictates what is extracted.
Cooking flower in oil will always extract a large amount of chlorophyll and does make your edibles taste ‘weedy’. You also don’t get full extraction of THC using oil. I do a full spectrum oil for edibles using QWET and a tabletop still called a “Source Turbo”. It recovers the alcohol for reuse. Doing this requires the use of 190 proof ethanol.
A water bath or water cure is supposed to reduce harsh notes when smoking. For edibles you won’t see a difference.
Never ever grind flower for edibles. It exposes much more green plant material to the solvent thus increasing ‘weedy’ taste.