Was really wondering about the comparative ratio of propylene glycol needed to water to make a proper max content crank vape pen.. a “crank tank” if you will.. and what type of coil might be best for this?
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VG may be more harmful at high temperatures. PG does not have a high enough boiling point. The boiling point you need is 210-215*C. If your pen is set to these degrees, you should experiment by gradually adding some VG to the PG to get it past the boiling point. This should be about 215*C or more depending on your pen. Then you can use it to its fullest potential. Be sure to use ceramic in the pen. If this is difficult for you, just make a 1:1 mixture of PG:VG