PODCAST: How Mill Turns Everyday Food Waste Into a Resource with Sydney Grier

Episode Title: How Mill Turns Everyday Food Waste Into a Resource with Sydney Grier

Guest: Sydney Grier, Packaging Lead at Mill

Summary:

In this episode, Cory Connors sits down with Sydney Grier, Packaging Lead at Mill, to explore how the company is tackling one of the most overlooked environmental problems: household food waste. Sydney shares her journey from studying environmental management at Cal Poly San Luis Obispo to becoming a packaging engineer, and how she ended up joining Mill — then operating in stealth mode as Chewy Labs. Together, Cory and Sydney discuss how Mill’s food recycler works, why composting beats landfilling, the innovative all-paper packaging Sydney designed for a 60-pound device, and what the future holds for commercial expansion into places like Whole Foods.

Key Topics Discussed:

• Sydney’s path from environmental management to packaging engineering at Cal Poly San Luis Obispo
• How Mill originated from a desire to tackle food waste at the household level
• What Mill does: drying, grinding, and dehydrating food scraps to reduce volume by ~80%
• The difference between food grounds and compost — and why it matters
• Why composting produces CO2 while landfilling food produces methane (a far more potent greenhouse gas)
• Challenges of composting access across the U.S. and how Mill fills the gap
• Mill’s commercial expansion: launching nationwide in Whole Foods in 2027 at 10x home capacity
• Designing paper-based protective packaging for a 60-pound device — without styrofoam
• The value of involving a packaging engineer early in the product design cycle
• How Mill’s bin is rated to withstand 200 g’s of peak acceleration (equivalent to a car hitting a wall at 440 mph)
• Output options for Mill food grounds: garden spreading, local compost drop-offs, backyard chickens, or Mill’s chicken feed send-back program

Resources Mentioned:

• Mill — food recycler for the home and commercial kitchens
• Whole Foods Market — Mill’s first commercial partner (launching 2027)
• Mill’s chicken feed program — send back food grounds to be processed at Mill’s facility in McCleary, Washington

Contact:

• Visit Mill to order or learn more about the product
• Follow Sydney Grier on LinkedIn to stay up to date on her work in sustainable packaging

Closing Thoughts:

Cory and Sydney highlight that food waste is one of the rare environmental issues that is truly non-controversial — nobody wants to throw food away. Mill represents a new category of appliance that makes the right choice the easy choice, and Sydney’s passion for designing packaging that reflects those same values shines throughout the conversation. Whether you’re a packaging professional, sustainability advocate, or simply someone who wants to reduce household waste, this episode is packed with insight and inspiration.

Thank you for tuning in to Sustainable Packaging with Cory Connors!

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