Greetings beer fans and members. Rick here with a question about magnetic stirrers. I picked up (hasn't arrived yet) what appears to be a decent used unit on an E-bay auction and need some advise about operation and appropriate stirring devices. The device is a 9 inch Cole Palmer with a heating style top. I have a 2 liter Erlenmeyer flask and hope to supercharge my next yeast colony. What type of stirring device do I need? Where do I get one? Should I have some spares? How long or fast do I stir the mixture? Is the top heating surface appropriate for boiling a flask of wort? Thanks Rick Oftel