I totally disagree. When draining a working solution from a vessel what you leave behind is maybe one tenth of a thousandth of the total volume, possibly even less, that will then get diluted by the full volume of beer. That is infinitely less than the amount he would drink just by drinking a pint of his contaminated beer. That beer is unfit for human consumption and should be dumped right away, no further questions asked.He said he drained the StarSan out leaving just residue, which I would imagine would total around 5ml. Since the dilution ratio is 6ml to a gallon of water, I would say 5 gallons of beer would safely diluted the residue IMO.
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