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Circular Economy Podcast - artwork for episode 136 with Julia Brenner of Melta

136 Julia Brenner of Melta: creating value from food waste

There is a simple solution to conserve, and reuse, more of the nutrients from food waste.
In today’s episode, I’m talking to Julia Brenner, a soil scientist and co-founder of Melta, a company dedicated to transforming waste management and soil health. Julia and her business partner founded Melta in 2020, to solve two interconnected challenges faced by rural municipalities: the lack of accessible and cost-effective food waste solutions, and the difficulty of transporting organic fertilizers to remote areas.
This is a brilliant example of something that is needs little investment, saves money, time and space, and can be adopted easily, all around the world. It is easy to scale out, and a great example of a local, regenerative solution to the typical ineffective, expensive and resource-intensive solutions that we see in western society.
The Melta system uses the Bokashi process which is thought to originate from East Asia, centuries ago. The Bokashi process converts food waste and similar organic matter into a nutrient-rich soil additive which also improves soil texture.
Melta’s innovative system for organic waste collection, processing, and utilization can reduce municipal waste transport by 70%, and producing a nutrient-rich fertilizer that is cheaper and easier for farmers to access.
Julia studied soil restoration at the University of Iceland and then delved further into nutrient cycling and climate models at Oak Ridge National Laboratory. She continues to engage in collaborative field experiments with the Soil Conservation Service of Iceland and Icelandic Agricultural University. Julia is passionate about making “sustainability” a realistic and attainable goal, and is committed to bridging the gap between practical waste management and soil health.
We discover why dealing with household food waste is such a big headache for rural municipalities; and how the bokashi process can easily become part of a system that’s better for households, farmers and the local council.
Julia explains how the Bokashi process works in practice, and why households prefer it over other methods like putting food waste in with other refuse, or have separate food waste collection bins. As we’ll hear, the results are amazing – and the system is very simple, so it could be easily used in rural areas around the world.

Artwork for episode 134 with Jane Martin of City to Sea

134 Jane Martin of City to Sea: powering refill & reuse on-the-go

To mark World Refill Day 2024, we talk to Jane Martin, the CEO of City to Sea, a campaigning non-profit with a mission to prevent plastic pollution at source.
World Refill Day is a global campaign to prevent plastic pollution and help people live with less waste. It’s a day of action each year, designed to create an alternative vision of the future and to accelerate the transition away from single-use plastic towards refill & reuse systems.
City to Sea develops and supports upstream solutions to give individuals, communities and businesses practical ways to replace single-use plastic in their lives, shopping baskets and operations.
City to Sea are specialists in behaviour change and creative communications and they develop innovations including the Refill app and Refill Return Cup to shift the dial from linear to circular.
For the past five years Jane Martin has been working as Head of Development at City to Sea, leading project work developing refill and reuse infrastructure in food-to-go and retail sectors, and she has recently been promoted to CEO.
Jane has broad experience across environmental, FMCG, retail, and culture sectors. In ten years’ time Jane wants to “look back and see a transformed circular economy where we value all the precious resources in the system and where we’ve abandoned our damaging throwaway culture.”
Jane summarises a report from the Ellen MacArthur Foundation, which categorizes packaging refill & reuse systems into four types: refill on-the-go, refill at home, return from home, and return on-the-go.
Each of those four categories has its own challenges around user needs, logistics, infrastructure and control systems. City to Sea focuses on refill on-the-go and return on-the-go, and we unpack those. Jane talks about some of the practical schemes that City to Sea has supported, and shares the insights and learnings gleaned so far.

Circular Economy Podcast BONUS - India Hamilton - SCOOP - part 2

Bonus – BONUS India Hamilton – SCOOP  – part two

BONUS Ep85 part 2 – India Hamilton shares more about circular economy food coop SCOOP, Permaculture, membership models, and why she loves compliance officers. We also discuss the importance of supporting your local food economy, and how monopolies and exploitative capitalism are underming this.

Circular Economy Podcast Episode 85 - India Hamilton - SCOOP

85 India Hamilton – SCOOP – transforming local food systems

India Hamilton, cofounder of circular economy food cooperative SCOOP explains the challenges of providing healthy, affordable and local food on a small island. We hear about the founding principles behind SCOOP and it’s ‘why’. India explains how SCOOP goes beyond the provision of local, healthy and sustainable food and is embedding circular solutions across the business. We find out how it survived during lockdown, and discuss India’s counter-intuitive conclusions about the real meaning of convenience

Circular Economy Podcast - Ep 79 Jordi Ferre – creating value from wine waste

79 Jordi Ferre – creating value from wine waste

You may be surprised to learn that, Instead of becoming waste for landfill, grape skins and other unused parts of grapes from the wine-making process can then go on to create important ingredients to support healthy living, which are used in supplements, foods and beverages.

Alvinesa Natural Ingredients based in Spain, is a “circular economy” leader of sustainable plant-based ingredients. New Chief Executive Jordi Ferre is leading the expansion of Alvinesa’s plant-based ingredients into the global food and nutrition markets. Jordi is an accomplished C-suite business leader who brings a strong commercial and operations background in the food sector, covering B2C as well as value-added food ingredients and agritech.

Circular Economy Podcast Ep75 Helena Norberg-Hodge – the future is local

75 Helena Norberg-Hodge – the future is local

HELENA NORBERG-HODGE is a pioneer of the new economy movement and recipient of Right Livelihood Award (aka the “Alternative Nobel Prize”), the Arthur Morgan Award and the Goi Peace Prize for contributing to “the revitalization of cultural and biological diversity, and the strengthening of local communities and economies worldwide.”
Helena Norberg-Hodge is also an author, and her most recent book is Local is Our Future. This book connects the dots between our social, economic, ecological and spiritual crises, revealing how a systemic shift from global to local can address all of these seemingly disparate problems at the same time. Helena is also the author of the inspirational classic Ancient Futures, and producer of the award-winning documentary The Economics of Happiness. Helena explains why local, small-scale, ‘traditional’ farming is better for farmers, for animal and human health, and for our planet, and how it helps strengthen local communities. We talk about why local food is one of the simple solutions to our interconnected, systemic problems, and why connection with soil, with nature, with the process of growing food, is essential for our health and wellbeing.

Circular Economy Podcast Episode 58 Elis Joudalova - OLIO

Episode 58 Elis Joudalova – OLIO

We talk to Elis Joudalova about OLIO, the #1 sharing app. OLIO connects neighbours with each other and with local businesses so surplus food can be shared, not thrown away. This could be food nearing its sell-by date in local stores, spare home-grown vegetables, bread from your baker, or the groceries in your fridge when you go away. OLIO can also be used for non-food household items.
Elis looks after Market Growth & Partnerships for OLIO, and has kickstarted, grown and managed strong food sharing communities in Jersey, Guernsey and Stockholm. Elis is a sustainability, food waste and circular economy change-maker with a contagious passion for food, environment, community empowerment and systems thinking. She loves inspiring and empowering people and businesses to make a change, focuses on the long term vision and has . a unique entrepreneurial approach to solving problems.

Circular Economy Podcast Episode 49 Ryan Edwards of Naked Innovations

Episode 49 – Ryan Edwards of Naked Innovations

Ryan Edwards is Co-founder of Naked Innovations, an eclectic mix of entrepreneurial “co-creators, fresh-thinkers, disruptors, shakers and provocateurs” that create and connect agrifood ecosystems to re-align the planet, business and people.

Ryan is passionate about transforming and innovating the agrifood industry by developing successful businesses, communities and teams. His background includes over 15 years international leadership experience at Cargill as European Marketing & Innovation Leader and as Managing Director of allfoodexperts. Ryan explains how Naked Innovations combines human-centred design and circular design to work on solutions that understand the needs of people and our planet.