Black goji berries soaked in acidic water is purple color (purple, purple red, iron red, etc.), in alkaline water is blue color (blue, blue-green, lake blue, etc.). Therefore, black goji berries in different water soak out is not the same color, generally with mineral water soak is purple, with home tap water soak is blue.

Black goji berries soak in warm or cool water below 60 degrees, can not use boiling water, because black goji berries anthocyanins and some nutrients are afraid of high temperature. Black goji berries soaking water color change is generally related to water, and black goji berries is not much connection. Black goji berries will appear different blue and purple color because of the water pH temperature changes.

Warm tips: dyed black goji berries in different water brewing is not change color, and natural wild black goji berries in different water naturally show different colors.