"Is it true that juicing fresh raw cannabis (not dried, not heated/cooked) with a cold press juicer will allow me to drink cannabis juice without the psychoactive effects of the THC (because I am consuming THCa, etc)?"
You’re correct that THCA (raw form, not heated, etc) is not psychoactive. However, a recent study showed that THCA spontaneously breaks down into THC even without heating. So, there will be very small amounts of THC in your juice but probably not enough to induce obvious psychoactive effects.
drbultman