that's also one form of treatment. Some people would argue that you put the ice on the soil to purple the plant. Which isn't entirely wrong either but doesn't turn skunk into purple haze (for example). With the ice on the image the plant freezes from the roots through the stomp to the buds. similar and it also increases the trichomes.

do you think differently? I'm always open to get corrected or learn new things. 😉