> Any solution with agar has to boil about a minute before you cool it.
> If it's not totally melted it won't solidify. Be careful at this stage,
> as it boils over and burns easily.
>> I've only ever used premixed plating media with agar already in it, but
> it will turn clear when it's melted. Use padded gloves and keep
> swirling it periodically while it's heating, unless you melt in an
> autoclave. We used to make 2-3 liters at a time, so swirling this was
> pretty tricky. If you're using smaller amounts use a large enough flask
> (Ehrlenmeyers are great) so you can swirl, but not too big.
Use a hotplate with a magnetic stirrer. Is slower then on a burner, but safer.
It can still boil over, and then it's hard to clean up, that makes you extra