Conical flask (or Erlenmeyer Flask if you speak non queens english ) and a stirring bee (or magnetic stirrer bar). The size is dependant on the size of your vessel, but in general a 20-25mm bee will do fine. LOADS available on ebay.The sizes are dependant on what you plan to do with it m8 - but 250ml, 500ml, 1 litre and 2 litre will cover you for prety much everything from trying to coax a bottle recovered yeast back to life to making a big fat starter for a high grav lager Remember that the price of the flasks seems to go up logarithmically...Ebay is good for the smaller stuff, but for 2L +, I'd reccomend looking at a school glassware or scientific supplier.
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