Natural Dye Workshop with Michel Garcia and Sustainable Dye Practice

A film series and discussion forum dedicated to the science and practice of natural dyes and pigments using sustainable methods.

Organic Indigo Vat pH

I have started organic indigo vats; one with aloe vera and one with fructose. The pH is quite high. Too high for wool. Will lowering the ph affect the workings … Continue reading

November 11, 2011 · 2 Comments

Lime from Builders’ Supply or DIY

Lime is a general term for calcium-containing inorganic materials, in which carbonates, oxides and hydroxides predominate. The rocks and minerals from which these materials are derived, typically limestone or chalk, … Continue reading

August 17, 2011 · 3 Comments

Lime vs calcium hydroxide

Here’s a question from friend, Joy McC. “What kind of lime do you need? Is it Calcium hydroxide? Does it need to be 100% lime? What happens if your indigo … Continue reading

August 16, 2011 · 2 Comments

Will Michel’s recipe work for all natural indigo?

Another sent-in question: Will Michel’s recipe using woad work using indigo from India? Click the comments section to read our answers  

August 9, 2011 · 1 Comment

Indigo vats explained by Michel

About fermentation in indigo vat.. I propose the following explanation: There are three kinds of vats — chemical vats, with synthetic or artificial reducing agents fermentation vats, with bacteria organic … Continue reading

July 15, 2011 · 1 Comment

中文:布頭布美 News in Chinese by Edith

26edith.pdf Click to download & read. MingPao Weekly, Hong Kong issue 2226 June 9 2011

July 15, 2011 · 4 Comments

Gall nuts for dyeing

A word on gall nuts. Gall nuts, nutgalls or oak apples are a tannin-rich growth on oak trees produced by an infection of the insect Cynips gallae tinctoriae, used as a … Continue reading

July 13, 2011 · 3 Comments

Technical terms for dyeing

Wikipedia is a great resource for an explanation of various terms used in dyeing processes. Worth a look. Bookmark it on your own web browser for fast reference.

July 12, 2011 · Leave a comment

Clay for resist paste

I found the Moroccan Rhassoul or Ghassoul clay, easily available (at least in the US), not expensive, online through many sites:, both micronized and non (traditionally used)profile: 8.44/lb reading

July 12, 2011 · 2 Comments

Question about “fermentation” in indigo process

Dear Michel, I have a few questions: – could you clarify the use of term "ferment" and "fermentation" in relationship to indigo process. You told me in the past that … Continue reading

June 4, 2011 · Leave a comment