NEWS

Matt Rogers’ Mill Transforms Kitchen Waste

Matt Rogers, co-founder of Nest, introduces Mill, an innovative appliance that transforms kitchen food waste into dry, odorless grounds. This high-tech solution reduces waste volume by 80%, aiming to revolutionize household garbage management and its environmental impact.

By
LNGFRM Team
Published November 17, 2025
A smiling man in a brown shirt holds a black mug and points to a jar on a metal shelving unit filled with various food items.
Image courtesy of Business Insider

Fifteen years ago, a nascent tech reporter, still finding his footing in the bustling innovation hubs of Silicon Valley, stumbled upon a revelation.

It wasn’t a self-driving car or a social media behemoth, but something far more mundane, yet utterly transformative: a thermostat.

That thermostat, born from the minds of former Apple engineers Tony Fadell and Matt Rogers, would become Nest, an emblem of smart home technology, eventually acquired by Google for a staggering $3.2 billion. Nest Thermostat – Wikipedia

Matt Rogers, the quiet force behind Nest’s sleek design and intuitive functionality, had made thermostats cool.

Now, with his latest venture, Mill, he’s set his sights on a new, even less glamorous target: your garbage.

The journey back to Matt Rogers’ orbit felt like a full circle for this reporter, a return to the very spirit of innovation that had once defined a career path.

The setting, ironically, was the former Silicon Valley e-commerce office of Walmart, its yellow sun logo still hanging defiantly from the ceiling – a quirky reminder of past ambitions now supplanted by new ones.

It’s here that Rogers, fresh from tackling climate change initiatives with former US Secretary of Transportation Pete Buttigieg, is embarking on perhaps his most audacious mission yet: to make food waste, of all things, “sexy.”

The premise of Mill is deceptively simple, yet its potential impact is profound.

Imagine a kitchen appliance, not unlike a sleek, modern trash can, that doesn’t just hold your food scraps but transforms them.

Rogers and his team have engineered a high-tech device that takes everything from watermelon rinds to the notoriously stubborn gelatin, and through a process of heating and drying, reduces it to a sweet-smelling, light brown powder.

These “food grounds” are 80% lighter than their original, wet, and often malodorous form.

Why does this matter?

The answer lies in the often-overlooked economics and environmental footprint of our daily waste.

Food waste is heavy. It’s wet. It spoils quickly, demanding frequent, fuel-guzzling garbage truck routes.

Cities spend colossal sums on collecting and processing this dense, perishable material.

Every extra pound of food scraps carried by a diesel truck translates to more emissions, more traffic, and higher operational costs.

Mill’s innovation directly addresses this inefficiency.

By converting 100 pounds of wet food waste into a mere 20 pounds of dry, odorless grounds, the ripple effect is immense.

Collection could become less frequent, fuel consumption would drop, and the overall environmental burden would lighten considerably.

A tour through Mill’s Silicon Valley headquarters reveals the fanatical attention to detail that one might expect from a cofounder of Nest, a company renowned for its Apple-esque design philosophy.

Adam Mittleman, Mill’s head of engineering and another Apple alumnus, showcased testing areas where devices are subjected to rigorous abuse – opened, closed, rotated, heated, shaken, and dropped – all to ensure they withstand years of daily use.

More intriguingly, there’s a “stink bomb” area, a dedicated space where chemical engineers meticulously work on ensuring that the transformed food scraps remain fragrant, not foul.

It’s a testament to Rogers’ vision: not just functionality, but an elevated user experience, even when dealing with something as inherently unappealing as garbage.

The “food grounds” themselves are a revelation.

Storable for months, they can be used to fertilize gardens, enriching soil with vital nutrients.

Or, for a fee, Mill offers to pick them up, diverting them from landfills and putting them to use elsewhere, closing the loop on a system that has long been linear and wasteful.

Currently, tens of thousands of homes are embracing this new paradigm, either purchasing the device outright for around $1,000 or renting it for $35 a month.

Mill has already garnered over $100 million in funding, a clear indicator that investors see the immense potential in what might initially seem like a quixotic endeavor.

But Rogers has a track record of identifying overlooked problems and solving them with elegant, high-tech solutions that eventually become commonplace. Matt Rogers, Nest cofounder

His ambition is not just to sell a device, but to fundamentally shift our relationship with food waste, much like dishwashers, once luxury items, became indispensable household appliances.

Hardware is notoriously difficult to scale, requiring massive volumes to achieve profitability.

Yet, if anyone can convince consumers to rethink their trash, it’s the man who once convinced them to fall in love with their thermostat.

Matt Rogers isn’t just selling a smart trash can; he’s selling a future where waste is not merely discarded but transformed, where household chores become opportunities for environmental stewardship, and where the mundane becomes a canvas for innovation.

It’s a bold vision, one that suggests the next revolution in our homes might just start in the kitchen, with the humble scraps we once threw away without a second thought.

Author

  • LNGFRM Team

    Frank DiBernardo handles LNGFRM's Foodie and Miscellaneous writing tasks. He's always getting ideas from users, so don't be afraid to send an email to the editor.

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