Boletopsis Grisea - Fungi Dye Recipe

Boletopsis grisea

FI – Sudenkääpä
SW -tallgråticka

Boletopsis mushroom dye
[pinit count=”horizontal” url=”https://www.allfiberarts.com/2011/boletopsis.htm” image_url=”https://www.allfiberarts.com/library/graphics/mushroom/boletopsis574.jpg” description=”Boletopsis mushroom dye “]

Alum Mordant

3 litres water
25 grams alum
10 grams cream of Tartar
Bring to boil and then let cool

100 gram wool yarn tied in skeins
Rinse the clean washed yarn in cool water
Add the yarn into the cool mordant bath and bring it to 80-90 C degrees

Simmer for 1 hour
Remove and let cool

Mushroom Dye Bath

If using dried mushrooms soak them in water for a few hours until soft.

200 grams dried mushrooms
5 litres water
Bring to boil and simmer for 2-3 hours

Let dyebath cool
Strain the liquid and store the cooked mushrooms.
They can be used again in an afterbath

Add mordanted yarn to strained dyebath liquid

Return to heat and simmer for 1 hour at 80-90 degrees Celsius or longer for stronger colour.

Remove from heat source and let cool

Rinse in water that is of similar temperature as dyebath to avoid shocking the yarn and causing felting to occur.

Boletopsis Grisea Dye Recipe

I tried this fungi dye recipe again using less mushrooms as I didn’t have 200 grams of boletopsis fungi available. This produced a lighter shade of sage green.

20 grams dried Boletopsis grisea mushrooms.
Cut them into small pieces and put inside a nylon stocking.
Put into a crock pot filled with 3 liters of water.
Bring the dye mixture to a simmer and let it cook for a few hours.
Turn off the heat and allow the dye mixture to cool and sit overnite.

Reheat the dyepot the following day.
Check the pH of the dyebath and add ammonia to bring the pH to 8-9.
Add 100 grams of alum mordanted wool yarn.
Let the dyebath simmer for several hours until the yarn has absorbed the dye colour, checking the pH levels from time to time.
Turn off the heat and allow the dyebath to cool.
Remove the dyed yarn and rinse in cool water.

boletopsis dye

Boletopsis Grisea

The Boletopsis grisea mushroom is on the Red list as an endangered species in many countries, so please take care and check whether picking these are permitted in your area.

Mushroom Dyes

Fungal Records Database of Britain and Ireland

..More Fungi Dyes..

Cortinareous Semisanguineous

Mushroom Dyes

Mushroom Dye Books

Mushrooms for Color
Fungi dyeing by Miriam Rice.
UK: Mushrooms for Color

The Rainbow Beneath My Feet: A Mushroom Dyer’s Field Guide
UK: Rainbow Beneath my Feet

All That the Rain Promises and More: A Hip Pocket Guide to Western Mushrooms
A hip pocket guide to more than 200 edible and poisonous mushroom species, as well as recipes, stories, and information on uses of various species.
UK: All That the Rain Promises

A comprehensive guide to mushrooms in the UK, with over 1200 photographs.
UK: Mushrooms

Natural Dyes and Mordants


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This page last edited on November 11, 2013


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