Karen Polizzi, Co-Director of NAPIC, and Prithvi Kodialbail, Head of Partnerships at Extracellular, on Adopter's Scaling Green-Tech podcast.
May 13, 2026

Episode 25: Karen Polizzi (NAPIC) and Prithvi Kodialbail (Extracellular) - Scaling Cultivated Meat from Lab to Market

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Episode summary

Karen Polizzi, Co-Director of NAPIC (the National Alternative Protein Innovation Centre), and Prithvi Kodialbail, Head of Partnerships at Extracellular, discuss the commercialisation of cultivated meat on Episode 25 of Scaling Green Tech, a podcast by Adopter.

The first cultivated meat burger cost approximately $27,000 to produce. Since then, regulatory approvals have come through in Singapore and the US, cultivated products have appeared in restaurants, and an infrastructure layer of companies has begun filling the gap between R&D and commercial scale. Polizzi and Kodialbail trace where the bottlenecks remain - manufacturing costs, regulatory harmonisation, and access to facilities - and describe how NAPIC and Extracellular are each working to close those gaps in the UK. The conversation also makes the case for food security, rather than sustainability, as the most compelling argument for alternative proteins, set against real long-term agricultural risk in the UK.

This episode is relevant for cultivated meat founders, alternative protein investors, food science researchers, and policymakers working on UK novel foods regulation.

Guest profileS

Professor Karen Polizzi is a Professor of Biotechnology at Imperial College London, and Co-Director of the National Alternative Protein Innovation Centre (NAPIC). Karen leads NAPIC's Process pillar, focused on developing cultivated meat and precision fermentation at scale. Her research applies synthetic biology to upstream bioprocessing, including strain engineering and analytical technologies for cell culture.

NAPIC is a £38m initiative backed by BBSRC and Innovate UK to make alternative proteins mainstream in the UK. It supports companies across cultivated meat, plant-based proteins, and precision fermentation through collaborative research grants, infrastructure mapping, and consumer attitudes research. NAPIC has over 120 partner organisations.

NAPIC website 

Find Karen Polizzi on LinkedIn

Prithvi Kodialbail is the Head of Partnerships at Extracellular, a contract development and manufacturing organisation (CDMO) dedicated to providing biomanufacturing support for cell-cultivated products in the health & wellness industry. With a background in process engineering, innovation & global regulations, Prithvi brings deep technical and commercial expertise to the scale-up challenge faced by novel technologies.

Extracellular de-risks the path to commercialisation for companies advancing from concept or lab-scale research by minimising the need for major infrastructure investments through their dedicated development & commercial manufacturing facilities and deep technical expertise. 

Extracellular website 

Find Prithvi Kodialbail on LinkedIn.

Key takeaways

  • The first cultivated meat burger cost approximately $27,000 to produce. Manufacturing costs have fallen substantially over the past three to four years, driven by improvements in cell culture media and production efficiency.
  • Cultivated meat is now approved for sale in Singapore and the US, and is available in some restaurants. The UK's Food Standards Agency is developing its own approval framework through the cell-cultivated product sandbox.
  • NAPIC has over 120 partner organisations and provides infrastructure mapping to help companies find nearby facilities for manufacturing, analytical testing, and equipment access - without requiring capital investment upfront.
  • Extracellular operates its own R&D facilities and manufacturing plant in Bristol, offering process engineering and scale-up support to companies that cannot yet justify building their own infrastructure.
  • Companies such as Meatly are entering the pet food market - where regulations differ from human food approval - to generate revenue while pursuing the longer human consumption clearance process.
  • The FSA recently released tasting guidance as part of its cell-cultivated product sandbox, clarifying the consumer testing data required in a regulatory dossier submission.
  • Prithvi Kodialbail argues that faster data sharing between companies - including on what has not worked - would accelerate the whole industry, and notes that anonymisation tools could allow this without compromising IP security.
  • Deep tech investment requires patience that investors from software backgrounds often don't have. Karen Polizzi notes this mismatch as a recurring factor in cultivated meat's funding difficulties - and expects a period of consolidation before the next investment upswing.

topics covered

  • What cultivated meat is and how bioreactor-based production works
  • NAPIC's role as a UK government-funded innovation knowledge centre
  • Extracellular's process engineering and scale-up infrastructure
  • The cost of cultivated meat production and how it has fallen since the first burger
  • The regulatory landscape in the UK, US, Singapore, and EU
  • The FSA cell cultivated product sandbox and new tasting guidance
  • Food security as a value driver for alternative proteins
  • Infrastructure mapping and ecosystem building
  • Consumer attitudes research and science communication
  • Fundraising challenges and revenue diversification (including the pet food route)
  • Partnerships as commercial strategy in early-stage sectors
  • Training STEM graduates in bioprocess engineering

Frequently asked questions

What is cultivated meat?
What are alternative proteins?
What are the main barriers to scaling cultivated meat?
Where is cultivated meat currently approved for sale?
What is the FSA cell cultivated product sandbox?
Why is food security relevant to alternative proteins?

About Scaling Green-Tech

Scaling Green-Tech by Adopter is a podcast for people shaping the future of climate technology - founders, investors, and ecosystem leaders at the forefront of adaptation and resilience solutions. As part of Adopter’s mission to accelerate the adoption of high-impact climate innovation, the podcast aims to amplify real voices and practical insights that can help others navigate the startup journey. These conversations go beyond the hype to bring real, unfiltered stories - the wins, the roadblocks and everything you need to know in between.

Read the full transcript here
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