Podcast Summary: "No cows here: Could your pint become your next leather wallet?"

Podcast: James Reed: All About Business
Host: James Reed (A)
Guest: Dr. TJ Mitchell (Edward "TJ" Mitchell), Co-Founder & CTO, Arda Biomaterials (B)
Episode: 73
Release Date: April 6, 2026

Episode Overview

This episode features a dynamic and candid conversation between James Reed and Dr. TJ Mitchell, the co-founder and CTO of Arda Biomaterials—a London-based startup transforming waste grain from breweries into animal-free, plastic-free leather alternatives. The discussion explores TJ’s journey from academic chemistry to entrepreneurship, the genesis and evolution of Arda’s innovative material, challenges in scaling up, and broader implications for material science and sustainability. Listeners gain rich, actionable insights into the intersection of science, industry, and impactful business-building.

Key Topics & Insights

1. TJ's Background and the Story Behind His Name

[01:44 – 02:37]

TJ recalls how he became known as ‘TJ’: “Short for Edward is Teddy. So I had to grow up as Teddy Joe…not a name you want to be called at school. You get picked on for being called Teddy so quickly became TJ.” (B, 02:18)
Humorous exchange on Scottish aversion to the name Edward (“Edward Hammer of the Scots.” – A, 02:05)

2. Transition from Science to Entrepreneurship

[03:07 – 08:42]

TJ’s PhD focused on sensors for radioactive waste, with little connection to current work.
After seeing limited career options in academia/consulting, TJ joined Entrepreneur First—described as “Love Island meets Dragon’s Den” for founders (B, 04:08).
Matchmaking of technical (like TJ, a chemist) and commercial types (like CEO co-founder Brett Cotton).
Brett Cotton’s unconventional path: wrote a book of biotech founder interviews, strong Cambridge/VC/startup background.

Quote:

“Entrepreneur First... brings in maybe 80 people…you have to meet and match up to find a business partner. If you don’t, you get kicked off the program.” (B, 04:08)

3. The Birth of Arda Biomaterials: Waste Valorization

[09:29 – 14:43]

Serendipity: prompted by local brewers on Bermondsey Beer Mile, TJ discovers spent grain is a costly waste product despite its high protein.
Initial plan: Extract protein for plant-based foods, but giants like AB InBev warn of economic/regulatory challenges and inconsistent quality.
Pivot to material science: “What protein-based materials are there?” (B, 14:40) — realizes wool, silk, feathers, fur, and crucially, leather, are all protein-based.
Scientific breakthrough inspired by Cambridge research mimicking collagen from plant proteins.

Quote:

“The more we looked into it, leather was this huge market that hasn’t really been disrupted.” (B, 16:01)

4. Material Evolution: From Kitchen Prototypes to Fashion Goods

[17:08 – 21:35]

Early prototypes were “so crude … looked like flapjacks.” (B, 17:12)
Now, Arda produces realistic leather alternatives for card holders, bags, and small goods, focusing on full plastic- and animal-free credentials.
Fashion industry demand: current “pleather” is unpopular and fossil-based.
Main supplier: Colonel Brewery, with other collaborations including AB InBev (Budweiser, Stella, Corona).
Proof of concept: “This card holder here, this is made out of Budweiser.” (B, 19:59)

Memorable Moment:

A marveling James Reed: “You’d have no idea it wasn’t leather...and it’s not pleather either.” (A, 20:06)

5. Scaling and Industrialization Challenges

[21:35 – 35:24]

Scalability hinges on abundant, low-value feedstock, standard industrial equipment, and “some smart chemistry.”
Process: Grain is washed, protein extracted using conventional methods (high pH/alkali), then processed into a “soup” where fibers self-assemble, supplemented with vegetable oils, natural cross-linkers, and pigments (B, 26:40–29:00).
“Fractional valorization”—extracting multiple valuable outputs from a single waste input—is a long-term vision.
Now holds four patents (filed since October 2022) across UK, Europe, North America, and Japan.

Quote:

“None of this would have ever really been a good idea had there not been the scalability.” (B, 20:26)

6. Market Demand and Competitive Edge

[34:47 – 37:38]

Key market: luxury and premium fashion, especially as sustainability pressure mounts (plastic bans, deforestation regulations in EU).
Most “vegan” leathers to date are just bioplastics or “greenwashing.”
Arda’s differentiator: “Animal and plastic free”—can achieve price parity with existing synthetic leathers at scale.
Scaling challenge: speeding up production (currently ~24h per batch, target is 30 minutes), requires heavy engineering expertise, potentially co-locating with breweries or distillers.

Quote:

“There have been so many promises in the past of lab grown leather, but it just hasn’t come to fruition yet.” (B, 36:59)

7. From Scientist to Entrepreneur: Mindset Shifts

[21:35 – 23:54]

TJ highlights the biggest change: relentless communication and storytelling. “I would always say the key takeaway is just try and chat to everyone, really try and make friends with everyone because you just never know where any opportunity will be.” (B, 22:25)
Academia trains persistence and grant-writing; entrepreneurship demands commercial and networking skills.

8. Advice for Scientists and Entrepreneurs

[23:54 – 26:18, 43:31 – 45:18]

University spinouts face heavy equity cuts from parent institutions—Imperial College’s new, more founder-friendly approach cited as a model.
Recommend programs like Entrepreneur First, Zinc, Antler, Carbon 13 for aspiring scientific founders (26:18).
Practical tips: leverage networking events, sustainability meetups, and LinkedIn (“For someone coming from academia, where LinkedIn is not really a thing, it’s so important for building networks.” – B, 44:01), and try apps like Y Combinator’s co-founder matcher.

9. Long-Term Vision and Business Model

[40:13 – 41:34]

Five-year goal: pilot production facility, “roll-to-roll” manufacturing, major fashion houses as clients.
Ten-year vision: decentralized production at breweries worldwide (wholesale model), fractional valorization across materials (packaging, adhesives, etc), creating a new kind of 21st-century chemical/materials company.

Quote:

“We’re not actually a leather company…We see ourselves as this waste transformation, a chemical firm for the 21st century.” (B, 41:12)

10. The Entrepreneurial Journey: Advantages and Hurdles of Youth

[37:38 – 39:48]

Advantages of youth: low personal overheads, more room for risk and scrappiness, easier to be forgiven for mistakes, and ability to ask for help.
Challenges: learning company structuring, HR, and legal issues. “Lawyers, well, they’re really expensive…” (B, 39:24)
Minimal use of AI; classic "scientific method" dominates the startup’s technical approach.

11. Fundraising and Next Steps

[41:51 – 43:09]

Arda has raised over £5 million to date; next funding round targets £10–15 million for pilot facility.
Two biggest hurdles: proving industrial-scale production and satisfying large customer orders.

Memorable Moments & Notable Quotes

On naming the company:
"Finding a name is so hard to do. But we settled on new grain really early." (B, 34:58)
On shifting from academia to business:
“The key takeaway is just try and chat to everyone, really try and make friends with everyone because you just never know where any opportunity will be.” (B, 22:25)
On startup equity from universities:
“At [Oxford] they were taking somewhere between 30 and 50%. And that just hamstrings many startups.” (B, 24:08)
On building a team:
“I think one of the best things about founding a company is I’ve got to choose my team, and I look forward to kind of spending time and working with them.” (B, 45:13)

Important Timestamps

| Timestamp | Segment / Topic | |-----------|---------------------------------------| | 01:44 | Name origin stories, Scottish roots | | 03:07 | From chemistry PhD to entrepreneurship| | 04:08 | Entrepreneur First program explained | | 12:30 | Discovery of brewer's waste opportunity| | 14:40 | Pivot from food to materials | | 17:12 | Early prototypes and product evolution| | 19:59 | Sample Budweiser cardholder shown | | 21:35 | From lab to scale: scientific journey | | 22:25 | On the importance of networking | | 23:54 | Universities and equity for spinouts | | 26:40 | Explaining the protein to leather-like process | | 34:47 | Luxury fashion as key market | | 40:13 | Long-term vision for Arda | | 41:51 | Fundraising and business milestones | | 45:13 | On leadership and team-building |

Actionable Advice & Takeaways

Scientists with entrepreneurial ambitions: Explore structured incubator/accelerator programs where business and technical skills meet (Entrepreneur First, Zinc, Antler, Carbon 13).
Network relentlessly: Attend (sustainability) events, use LinkedIn, and consider partner-finding apps like Y Combinator’s.
Start young if possible: Low overhead and higher tolerance for trial-and-error.
Consider scalability and circularity from the start: The availability of feedstock and industrial logistics are as important as the scientific breakthrough.
On partnerships: Pair up with commercial co-founders to accelerate learning and execution.

Final Reflections

The episode paints a vivid picture of 21st-century entrepreneurship at the intersection of science, sustainability, and manufacturing. TJ’s journey showcases both the unexpected serendipity and dogged determination necessary to bring a novel material to market. The episode is peppered with practical advice for scientists and young founders—network broadly, be scrappy, and never underestimate the power of a shared pint or chance meeting!

For further information:

Arda Biomaterials (see show notes)
Reed Global (see show notes)

[This summary omits advertisements and generic podcast intros/outros, focusing solely on the core content and practical insights.]

Podcast Summary: "No cows here: Could your pint become your next leather wallet?"

Episode Overview

Key Topics & Insights

1. TJ's Background and the Story Behind His Name

[01:44 – 02:37]

TJ recalls how he became known as ‘TJ’: “Short for Edward is Teddy. So I had to grow up as Teddy Joe…not a name you want to be called at school. You get picked on for being called Teddy so quickly became TJ.” (B, 02:18)
Humorous exchange on Scottish aversion to the name Edward (“Edward Hammer of the Scots.” – A, 02:05)

2. Transition from Science to Entrepreneurship

[03:07 – 08:42]

TJ’s PhD focused on sensors for radioactive waste, with little connection to current work.
After seeing limited career options in academia/consulting, TJ joined Entrepreneur First—described as “Love Island meets Dragon’s Den” for founders (B, 04:08).
Matchmaking of technical (like TJ, a chemist) and commercial types (like CEO co-founder Brett Cotton).
Brett Cotton’s unconventional path: wrote a book of biotech founder interviews, strong Cambridge/VC/startup background.

Quote:

“Entrepreneur First... brings in maybe 80 people…you have to meet and match up to find a business partner. If you don’t, you get kicked off the program.” (B, 04:08)

3. The Birth of Arda Biomaterials: Waste Valorization

[09:29 – 14:43]

Serendipity: prompted by local brewers on Bermondsey Beer Mile, TJ discovers spent grain is a costly waste product despite its high protein.
Initial plan: Extract protein for plant-based foods, but giants like AB InBev warn of economic/regulatory challenges and inconsistent quality.
Pivot to material science: “What protein-based materials are there?” (B, 14:40) — realizes wool, silk, feathers, fur, and crucially, leather, are all protein-based.
Scientific breakthrough inspired by Cambridge research mimicking collagen from plant proteins.

Quote:

“The more we looked into it, leather was this huge market that hasn’t really been disrupted.” (B, 16:01)

4. Material Evolution: From Kitchen Prototypes to Fashion Goods

[17:08 – 21:35]

Early prototypes were “so crude … looked like flapjacks.” (B, 17:12)
Now, Arda produces realistic leather alternatives for card holders, bags, and small goods, focusing on full plastic- and animal-free credentials.
Fashion industry demand: current “pleather” is unpopular and fossil-based.
Main supplier: Colonel Brewery, with other collaborations including AB InBev (Budweiser, Stella, Corona).
Proof of concept: “This card holder here, this is made out of Budweiser.” (B, 19:59)

Memorable Moment:

A marveling James Reed: “You’d have no idea it wasn’t leather...and it’s not pleather either.” (A, 20:06)

5. Scaling and Industrialization Challenges

[21:35 – 35:24]

Scalability hinges on abundant, low-value feedstock, standard industrial equipment, and “some smart chemistry.”
Process: Grain is washed, protein extracted using conventional methods (high pH/alkali), then processed into a “soup” where fibers self-assemble, supplemented with vegetable oils, natural cross-linkers, and pigments (B, 26:40–29:00).
“Fractional valorization”—extracting multiple valuable outputs from a single waste input—is a long-term vision.
Now holds four patents (filed since October 2022) across UK, Europe, North America, and Japan.

Quote:

“None of this would have ever really been a good idea had there not been the scalability.” (B, 20:26)

6. Market Demand and Competitive Edge

[34:47 – 37:38]

Key market: luxury and premium fashion, especially as sustainability pressure mounts (plastic bans, deforestation regulations in EU).
Most “vegan” leathers to date are just bioplastics or “greenwashing.”
Arda’s differentiator: “Animal and plastic free”—can achieve price parity with existing synthetic leathers at scale.
Scaling challenge: speeding up production (currently ~24h per batch, target is 30 minutes), requires heavy engineering expertise, potentially co-locating with breweries or distillers.

Quote:

“There have been so many promises in the past of lab grown leather, but it just hasn’t come to fruition yet.” (B, 36:59)

7. From Scientist to Entrepreneur: Mindset Shifts

[21:35 – 23:54]

TJ highlights the biggest change: relentless communication and storytelling. “I would always say the key takeaway is just try and chat to everyone, really try and make friends with everyone because you just never know where any opportunity will be.” (B, 22:25)
Academia trains persistence and grant-writing; entrepreneurship demands commercial and networking skills.

8. Advice for Scientists and Entrepreneurs

[23:54 – 26:18, 43:31 – 45:18]

University spinouts face heavy equity cuts from parent institutions—Imperial College’s new, more founder-friendly approach cited as a model.
Recommend programs like Entrepreneur First, Zinc, Antler, Carbon 13 for aspiring scientific founders (26:18).
Practical tips: leverage networking events, sustainability meetups, and LinkedIn (“For someone coming from academia, where LinkedIn is not really a thing, it’s so important for building networks.” – B, 44:01), and try apps like Y Combinator’s co-founder matcher.

9. Long-Term Vision and Business Model

[40:13 – 41:34]

Five-year goal: pilot production facility, “roll-to-roll” manufacturing, major fashion houses as clients.
Ten-year vision: decentralized production at breweries worldwide (wholesale model), fractional valorization across materials (packaging, adhesives, etc), creating a new kind of 21st-century chemical/materials company.

Quote:

“We’re not actually a leather company…We see ourselves as this waste transformation, a chemical firm for the 21st century.” (B, 41:12)

10. The Entrepreneurial Journey: Advantages and Hurdles of Youth

[37:38 – 39:48]

Advantages of youth: low personal overheads, more room for risk and scrappiness, easier to be forgiven for mistakes, and ability to ask for help.
Challenges: learning company structuring, HR, and legal issues. “Lawyers, well, they’re really expensive…” (B, 39:24)
Minimal use of AI; classic "scientific method" dominates the startup’s technical approach.

11. Fundraising and Next Steps

[41:51 – 43:09]

Arda has raised over £5 million to date; next funding round targets £10–15 million for pilot facility.
Two biggest hurdles: proving industrial-scale production and satisfying large customer orders.

Memorable Moments & Notable Quotes

On naming the company:
"Finding a name is so hard to do. But we settled on new grain really early." (B, 34:58)
On shifting from academia to business:
“The key takeaway is just try and chat to everyone, really try and make friends with everyone because you just never know where any opportunity will be.” (B, 22:25)
On startup equity from universities:
“At [Oxford] they were taking somewhere between 30 and 50%. And that just hamstrings many startups.” (B, 24:08)
On building a team:
“I think one of the best things about founding a company is I’ve got to choose my team, and I look forward to kind of spending time and working with them.” (B, 45:13)

Important Timestamps

Actionable Advice & Takeaways

Scientists with entrepreneurial ambitions: Explore structured incubator/accelerator programs where business and technical skills meet (Entrepreneur First, Zinc, Antler, Carbon 13).
Network relentlessly: Attend (sustainability) events, use LinkedIn, and consider partner-finding apps like Y Combinator’s.
Start young if possible: Low overhead and higher tolerance for trial-and-error.
Consider scalability and circularity from the start: The availability of feedstock and industrial logistics are as important as the scientific breakthrough.
On partnerships: Pair up with commercial co-founders to accelerate learning and execution.

Final Reflections

For further information:

Arda Biomaterials (see show notes)
Reed Global (see show notes)

[This summary omits advertisements and generic podcast intros/outros, focusing solely on the core content and practical insights.]

73. No cows here: Could your pint become your next leather wallet? | TJ Mitchell

Summary

Podcast Summary: "No cows here: Could your pint become your next leather wallet?"

Episode Overview

Key Topics & Insights

1. TJ's Background and the Story Behind His Name

2. Transition from Science to Entrepreneurship

Quote:

3. The Birth of Arda Biomaterials: Waste Valorization

Quote:

4. Material Evolution: From Kitchen Prototypes to Fashion Goods

Memorable Moment:

5. Scaling and Industrialization Challenges

Quote:

6. Market Demand and Competitive Edge

Quote:

7. From Scientist to Entrepreneur: Mindset Shifts

8. Advice for Scientists and Entrepreneurs

9. Long-Term Vision and Business Model

Quote:

10. The Entrepreneurial Journey: Advantages and Hurdles of Youth

11. Fundraising and Next Steps

Memorable Moments & Notable Quotes

Important Timestamps

Actionable Advice & Takeaways

Final Reflections

Summary

Podcast Summary: "No cows here: Could your pint become your next leather wallet?"

Episode Overview

Key Topics & Insights

1. TJ's Background and the Story Behind His Name

2. Transition from Science to Entrepreneurship

Quote:

3. The Birth of Arda Biomaterials: Waste Valorization

Quote:

4. Material Evolution: From Kitchen Prototypes to Fashion Goods

Memorable Moment:

5. Scaling and Industrialization Challenges

Quote:

6. Market Demand and Competitive Edge

Quote:

7. From Scientist to Entrepreneur: Mindset Shifts

8. Advice for Scientists and Entrepreneurs

9. Long-Term Vision and Business Model

Quote:

10. The Entrepreneurial Journey: Advantages and Hurdles of Youth

11. Fundraising and Next Steps

Memorable Moments & Notable Quotes

Important Timestamps

Actionable Advice & Takeaways

Final Reflections