Most farmers are told the path to profit runs through more — more acreage, more machinery, more output. Ben Hartman did the opposite, and it changed everything. By applying lean manufacturing principles borrowed from Toyota to his small Indiana farm, he turned a chaotic, exhausting operation into one of the most profitable small farms in the United States.

When Hartman and his partner Rachel Hershberger began rethinking Clay Bottom Farm in Goshen, Indiana, they weren’t reading agricultural journals. They were reading factory floor management theory. The Toyota Production System — built around eliminating waste, creating flow, and producing only what customers actually want — turned out to translate almost perfectly to the rhythms of a working farm. The results were startling: they reduced their cultivated acreage from five acres to less than half an acre, cut their working hours from sixty to thirty-five per week, and watched their profits rise every single year.

What lean farming actually means

Lean thinking starts with a simple question: what does the customer value? Everything else — every action, every tool, every step in the process that doesn’t contribute directly to that value — is waste. In manufacturing, waste might be excess inventory sitting in a warehouse or workers walking unnecessary distances between machines. On a farm, it looks like overplanting crops that won’t sell, harvesting more than chefs actually ordered, or maintaining a shed full of tools that get used twice a year.

Hartman identified eight categories of waste in his operation and methodically eliminated them one by one. He reduced his tool collection from dozens of items to seven core field tools. He stopped growing crops speculatively and began producing only to confirmed orders — a pull system, in lean terms — so that almost nothing went unsold or unharvested. He mapped the path every vegetable took from seed to delivery, found the steps that added no value, and cut them.

The goal is not to work harder or longer. The goal is to stop doing things that don't need to be done at all.

— Ben Hartman, The Lean Farm

The 5S foundation: start with the shed

The entry point for most lean transformations — on the factory floor and on the farm — is a practice called 5S: sort, set in order, shine, standardize, sustain. It sounds almost embarrassingly simple. But Hartman describes the first 5S session at Clay Bottom Farm as one of the most clarifying days in the farm’s history.

Sort means removing everything from the workspace that isn’t regularly used. For Hartman, this meant confronting years of accumulated tools, seed packets, irrigation parts, and equipment that “might come in handy.” Setting in order means every remaining item has a designated place, clearly marked, easy to return to after use. Shine is daily cleaning and maintenance. Standardize means creating visual systems — shadow boards, colour coding, written procedures — so that the right way to do things is obvious without having to think about it. Sustain is the hard part: building a culture where the first four steps are habits, not occasional events.

The practical effect was immediate. Workers spent less time searching for tools, less time retracing steps, less mental energy managing disorder. That saved time went into the work that actually produces food.

Smaller farm, better farm

The counterintuitive core of Hartman’s story is that shrinking was the key to growth. Clay Bottom Farm today operates across two greenhouses, a hoop house, and a small number of open beds — less than one acre in total production. Yet it generates a full livelihood for Hartman and Hershberger, and their hourly wage has increased every year since the contraction began.

The logic is straightforward once you see it. A larger farm requires more of everything: more labour, more inputs, more machinery, more management overhead. If much of that work is generating waste rather than value, scaling up simply produces more waste at higher cost. Shrinking to a scale you can truly optimise — where every square metre is producing maximum value, where every process is clean and intentional — compresses the inefficiency out of the system.

Hartman sells almost exclusively within two miles of the farm. His customers are chefs and households who want specific quantities of specific things at specific times. This tight feedback loop between production and demand is what makes the pull system work. He grows what is needed, when it is needed, in the amount that is needed. Almost nothing is wasted.

What other farms found

Clay Bottom Farm is not a unique case. The same principles applied at a 1,000-hectare commercial operation in Australia — Houston’s Farms — produced a 20% improvement in packing productivity and eliminated rework in the harvesting process. A French aromatic herb grower halved harvest time by applying lean motion analysis to how workers moved through the rows. A grape export farm in Peru reduced food loss by 58% and cut water footprint by 76% using value stream mapping to redesign post-harvest handling. A pig farm in Ireland added €66,000 in combined savings and output in a single year.

The pattern holds across scale, crop type, and geography. When you ask honestly what your customer values, and then remove everything that doesn’t contribute to that — waste falls, margins improve, and the work becomes more sustainable in every sense of the word.

How to start

Hartman’s book The Lean Farm lays out the full methodology in practical terms, written by someone who actually farms. His follow-up, The Lean Farm Guide to Growing Vegetables, goes deeper into crop-by-crop application. For those who want the theoretical foundation that Hartman drew from, The Toyota Way by Jeffrey Liker remains the clearest account of how lean thinking actually works.

For anyone farming at any scale, the starting point is the same: spend one day doing nothing but observing. Walk every step a crop takes from seed to sale. Write down every action. Then ask, for each one: does this add value for the customer, or is it waste? The answer, almost always, is that at least half of what you’re doing doesn’t need to be done at all.

That is both the uncomfortable truth and the most hopeful thing about lean farming. The path to a more productive, more sustainable, less exhausting farm is usually not more effort. It’s less of the wrong effort — and the clarity to see the difference.

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