Hi,

Which is the best means to evaporate water which contains the meth !

Because to proceed it is very long for a standard evaporation .

Can use the microwave has small temperature without damaging the meth ? or a other method ?

Some people use microwaves. They put the temp setting on pretty low and turn it on for like 7 second increments and take out and then put back in. You dont want your water to boil. If water boils, your losing some of your product in the condensate.

I think the best place to evap your water off is in a dark cubbard perhaps where the solution will not be disturbed for many days. Any movement, jilts, or vibration will disturb the centerfuge which might make your crystal lattice not come out as consistantly.

I have heard people say they get positive results with fruit dehydrators!