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Michele Stansfield, founder and CEO, Cauldron
Michele Stansfield, founder and CEO, Cauldron

🎥Cauldron on precision fermentation: ‘A continuous process will unlock cost of goods for low-value, high-volume products’

November 14, 2023

Precision fermentation might make commercial sense for high-value ingredients such as enzymes or lactoferrin. But what about low-value, high-volume ingredients such as casein proteins?

AgFunderNews caught up with Australian startup Cauldron, which believes a continuous (rather than a batch) fermentation process will be key to unlocking the commercial viability of microbial fermentation for a host of ingredients that have historically been sourced from animals or petrochemicals.

Speaking to us at the Asia-Pacific Agri-Foods Innovation Summit in Singapore last week, founder and CEO Michele Stansfield said: “We can get 20% more protein out of a 100,000-liter continuous line than you would get out of 500,000-liter batch line, and if you look at the difference in capex, that’s huge.

“And that’s the disruptive nature of Cauldron’s technology where you can look at having a dedicated manufacturing facility for less than US$30 million where it might cost you $100 to 200 million to build a 500,000-liter batch fermentation process.

“In the current economy, I don’t think VCs are going to want to raise $200-300 million plants anymore.”

In our conversation, we discussed:

  • Cauldron’s plans to build Asia-Pacific’s largest network of “smaller, smarter” precision fermentation facilities as a CDMO (contract development and manufacturing organization).
  • The difference between a batch and a continuous process and how to address contamination and genetic drift with the latter process.
  • The origins story at Cauldron
  • Which kinds of products or processes lend themselves best to a continuous process?

Further reading:

Scale can transform the unit economics of precision fermentation, but it’s ‘not the most powerful lever,’ says Synonym

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