Catechu powder (Acacia catechu) is made from the ground heartwood of the acacia tree.
Usually different types of acacia are mixed.
It colors a reddish brown, especially beautiful in higher concentration.
Copper sulfate is often added to the coloring to deepen and vary the color.
Catechu can be colored up to 90°C.
For a very dark brown coloring we recommend an addition of 200g copper sulfate to 1kg catechu.
Not suitable for consumption.
