What is the fastest way to cool down coffee?

Online Answer
SamtheBrand answers:
  • Pour your hot coffee into a metal cup (or a martini shaker), which has better heat transfer properties than ceramic or glass. For even quicker results, plan ahead by frosting the metal cup in the freezer.
  • Put the full metal cup in an ice bath. ...
  • Dip a metal spoon in and out of the full cup.
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