Arla and Heineken figured out how to monetize what they used to throw away. The lesson isn’t what they did. It’s what it took to get there.

There is a version of this story that gets told a lot: a big food company launches a circular initiative, and earns some good press.

That version isn’t wrong. But it misses the more interesting part.

Because when you look closely at what companies like Arla and Heineken have built around their byproduct streams, sustainability is almost incidental. What’s really happening is a business decision, methodical, economically driven, and in Arla’s case, generating over €1.4 billion in new revenue.

The real question isn’t how they got greener. It’s how they found money in what they used to ignore, and what it actually took to get there.

Arla: when a disposal problem becomes a €1.4 billion business unit

Arla produces cheese, butter, milk, yogurt. And like every dairy company, it generates whey, a liquid byproduct that was long treated as a cost.

They asked a different question: what is it actually worth?

That triggered decades of investment in understanding and extracting value from that stream: proteins, lactose, bioactives. What used to be waste became whey protein for sports nutrition, lactose for pharma, and ingredients for infant formula.

The 2024 acquisition of Volac Whey Nutrition wasn’t where this story started. It was a signal that the business had matured enough to accelerate. You don’t make that kind of acquisition unless the underlying model has already been proven.

By 2025, Arla Foods Ingredients, reached €1.452 billion in revenue, growing 43.1% in a single year. When dairy prices dropped, this division held the business together. 

This isn’t a sustainability story. It’s a byproduct becoming the most resilient part of a €15 billion company.

Most food companies don’t have 40 years or Arla’s R&D. But the logic is available to everyone:  understand your stream, validate the economics, and build the right path to market. The difference is how long it takes.

At Eatable Adventures, we compress that journey. We already know which streams have demand, which partners can execute, and which routes are viable without disrupting operations. 

What took Arla forty years doesn’t have to take you forty years.

Heineken: one byproduct, two business decisions

Every time Heineken brews beer, it generates grain. For every 100 liters of beer produced, roughly 20 kilograms of wet residual grain are left behind, adding up to 55,000 to 60,000 tonnes annually at a single site. Traditionally sold cheaply as animal feed.

They asked: what else could it be worth? The answer: two businesses in one stream.

Through Project Circle, Heineken extracts proteins for food applications and uses the remaining fibers as biomass to replace natural gas in the brewery. One stream, two value paths: new revenue and cost reduction.

The first plant in France is already delivering 50% CO₂  reduction in thermal energy, with plans to scale across Europe.

What matters isn’t just the result, it’s the decision model. Heineken didn’t build it alone. They partnered with specialists who had the technology. The brewery brought scale. The partners unlocked value.

Most food companies have similar streams leaving their facilities every day. The question isn’t if the opportunity exists. It’s whether it’s been properly mapped, evaluated, and activated.

That’s where we come in. Not from scratch, but from a base of accumulated knowledge about which streams have proven market demand, which partners can move fast, and which routes to market are realistic without disrupting what already works.

The pattern that connects both

Neither Arla nor Heineken started with a grand sustainability vision.

They started with a simple question: what do we actually have here? Volume. Composition. Cost. Potential value.

Most companies haven’t answered that seriously. That ‘s the gap.

What this actually means for you

The lesson isn’t “do what they did.” You can’t replicate decades of R&D or industrial scale overnight.

But you can recognize this:  the byproducts leaving your facility right now, treated as disposal cost, are actually unmonetized revenue sitting in your trucks.

We work with food corporations to map what’s  actually leavable as value, evaluate which opportunities hold up economically and operationally, connect them with industrial partners ready to move, and activate the first revenue line in months, not years. 

We’re not another sustainability initiative. We’re the path from “someday” to Q3.

Curious about what’s in your streams? Request a free 30-minute briefing