While sealing an old well next to the house the backhoe uncovered an old dump. They salvaged some old bottles for me. They are the old narrow mouthed cork bottles. Now, how do I get them clean? This no way that I know of to get inside the bottles with such a narrow opening and I can't get all the dirt & residue out. The outsides (and some insides) on some have mineral stains. I've soaked and scrubbed what I can, but how to remove the rest? Anyone know?