Natural colors from purple cabbage and blueberries

A few weeks ago I made some experiments with purple cabbage and blueberries for the workshop Childhood. Illustrated fieldwork.


Boiled cabbage, mixed with vinegar (left), soap (middle), and both (right)


Hues of blue from the various mixes


Purple cabbage (Brassica oleracea)


This pigeon was keeping an eye on my experiments 🙂

I borrowed some blueberries from my mother’s pot (she was making a delicious jam)


fresh blueberries, which were later crushed and boiled with salt to fix the color


Colors obtained from blueberry juice, after boiling with salt (left) and mixing with vinegar (right) or vinegar plus soap (middle)


Various shades of green obtained with sodium bicarbonate


sodium bicarbonate turns the purple juice into green


After three weeks, the colors obtained from purple cabbage (first row), blueberries (second row) and the illustrated bookmark (dark green turns into a yellowish hue)

2 thoughts on “Natural colors from purple cabbage and blueberries

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s