Bests & Worsts Reviews from Amazon

I've used this brand of peppermint oil for a couple yrs and it was wonderful. The last 2 bottles I got--including the one I ordered through amazon was HORRIBLE! (no fault of amazon or the shipper--great service there, as always!) I talked to the NOW people, first customer service, then the Nutrition Dept. They told me they have 4 different sources, all in India, for their peppermint. They only require 50% menthol in the product (which is what gives peppermint its characteristic fragrance). The previous bottles smelled so sweet you'd want to eat them and could use them to flavor foods, icing, etc. These last bottles have an awful rank odor over the comparatively faint peppermint smell. There's no way I could use this stuff! NOW seemed rather ambivalent about it ("oh, we've had several complaints/comments like yours") but didn't seem willing to change anything! I'm looking for a new source of peppermint oil.