Dye Another Day (REPLAY): The New Way to Color Textiles with Colorifix's Orr Yarkoni
In this replay episode of Grow Everything, Karl and Erum catch up after recent travel, reflect on a standout mainstream biotech article about biology reshaping the global chemical industry, and discuss why “tissue-on-a-chip” experiments in space matter for long-duration missions. They then kick off a deeper dive into bio-based dyes by revisiting their interview with Orr Yarkoni, co-founder and CEO of Colorifix, who explains how engineered microbes can both produce and directly deposit pigment onto textiles to dramatically reduce toxic chemistry, water use, and energy demand compared to conventional dyeing. The conversation covers why black and high-performance reds remain the hardest colors to replace, how Colorifix approaches scale-up through distributed on-site fermentation hardware, and what it takes to meet the real-world fastness and safety standards that brands and mills require.
Chapters:
(00:00:00) Travel catch-up and what the hosts have been thinking about lately
(00:05:30) Mainstream biotech gets it right: biology as “Mother Nature’s R&D lab” for the chemical industry
(00:07:15) Artemis and why deep-space biology experiments matter
(00:08:40) Project Hail Mary and communicating across radically different biology
(00:12:55) Why this season is focusing on bio dyes, and why textiles are a key wedge industry
(00:16:55) Interview begins: Orr’s background and the pivot from arsenic biosensing to dyeing
(00:20:15) How conventional textile dyeing works, and why it is so chemically and water intensive
(00:24:10) What Colorifix does differently: microbes that make dye and fix it onto fabric
(00:27:10) Performance realities: lightfastness, washfastness, and why “green but fragile” is not sustainability
(00:29:35) Finding pigments in nature, choosing the right biosynthetic routes, and translating them across materials
(00:34:20) Who buys what: dye houses, mills, and how the business model works
(00:36:55) Scaling fermentation the hard way: standardizing hardware and enabling on-site production
(00:40:05) Hardware basics and the economics of bioreactors for commodity chemicals
(00:44:05) Worker health, safer chemistry, and toxicity testing across the full process
(00:46:05) Where you can find Colorifix in-market, and which materials are trending
(00:49:00) Color priorities: why blue is easiest, and why black is the biggest challenge
(00:51:15) Regulation tailwinds: why some black chemistries are being phased out
(00:55:15) The future: bio-manufacturing everyday goods at scale
(00:58:45) Orr’s film recommendation: The Man in the White Suit
(01:00:00) Closing: upcoming live recording at DC Climate Week and SynBioBeta
Episode Links:
75. Dye Another Day: The New Way to Color Textiles with Colorifix's Orr Yarkoni
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