I just stumbled on about 6 hdpe buckets 3.5 gallons each (remember i brew small batches). however, they all had basalmic vinegars, and olive oils in them. i will probably start working on them later this week/weekend to clean them up, but curious if anyone has good recommendations for de smelling them. if i can't get rid of the smell they will be used for other things, they were free, no big deal