Read time: 4 minutes
Highlights
Circular dairy could turn waste into strategic value, not just reduce disposal costs.
- A new feedstock: Bel Group and Standing Ovation are using acid whey from cheese production to make precision-fermented casein.
- Functionality matters: Casein provides cheese with structure, melt and stretch, making it far more valuable than a generic protein powder.
- Industrial scale is only one step: Regulation, economics, purification, factory integration and consumer demand still need to be resolved.
- The future could be hybrid: Farms, fermentation facilities and digital process controls may operate together in the dairy plants of tomorrow.
- The strategic lesson: Food companies should start treating side streams as potential data, resource and revenue assets.
Waste is becoming an input
What if the future of dairy isn’t about choosing between conventional milk and animal-free alternatives?
What if it’s about combining the best of both?
That’s the question emerging from an important development involving Bel Group and French biotechnology company Standing Ovation. The companies are using precision fermentation to convert acid whey into casein, one of the most important proteins in cheese production.
Acid whey is the liquid left after making certain cheeses and other dairy products. It can be difficult to use economically because it contains a mixture of sugars, acids and minerals, but relatively little easily recoverable protein.
Standing Ovation’s process uses microorganisms as tiny biological factories. According to the companies, these microorganisms consume components of the acid whey and produce casein proteins. The process can also create other outputs, including water, salt, sugar and urea.
That changes the industrial question completely.
Instead of asking how a food manufacturer can dispose of a difficult by-product, leaders can start asking what valuable materials are still trapped inside it.
That’s a much more exciting question!
As I often say, “Waste is just a lack of imagination!”
Why casein is the breakthrough
Not all proteins have the same commercial value.
Casein is the protein that gives cheese its structure, melt and stretch. That makes it far more valuable than a generic protein ingredient.
Bel has said that the casein produced through this process has the same amino acid sequence, nutritional value and functionality as conventional bovine casein. These are important claims, but they should still be evaluated across different products, processing conditions and markets.
That’s why this partnership is important. Standing Ovation brings its fermentation platform. Bel brings dairy expertise, applications knowledge, existing manufacturing systems and access to consumers.
Tetra Pak is also involved in helping optimise industrial production and downstream processing, including protein separation, purification and pilot production units.
The big issue in food technology is often not whether the biology works. It’s whether the process connects with food-grade equipment, quality systems, supply chains and factory operations.
Here, the partners are trying to connect those pieces from the beginning.
You can read the original industry coverage from DairyReporter and the company’s own update from Bel Group.
Industrial scale doesn’t equal market scale
In 2025, industry reporting described casein production from whey at industrial scale. Bel and Standing Ovation have also called the development the first industrial-scale production of caseins from dairy co-products through precision fermentation.
Standing Ovation has reported a life-cycle assessment suggesting reductions of 74% in carbon emissions, 99% in land use and 68% in water consumption compared with conventional animal casein production. Those figures are promising, but several questions remain.
First, acid whey isn’t identical from one factory to another. Its composition can vary depending on the cheese being produced, the cultures used and the recovery systems already in place. That could affect fermentation performance and purification.
Second, the economics must work across the whole plant. Fermentation tanks, energy, separation equipment, quality control and purification all add cost.
Third, regulatory approval varies between countries. Authorities need to assess the production organism, the fermentation process, purification steps and the final casein ingredient.
Then there’s performance. Will the casein work consistently in different cheese formats? Can it run through existing equipment? Will manufacturers commit to demand before supply is reliable? Will consumers accept dairy protein made through fermentation?
The answer will determine whether this becomes circular dairy, or simply an impressive technical demonstration.
The hybrid dairy plant of the future
I don’t believe the most important future possibility is the disappearance of traditional dairy.
I believe it’s the emergence of a hybrid dairy system.
In that system, farms would continue producing milk, while fermentation facilities would produce specific proteins, fats, flavours and other ingredients. Digital systems would track feedstock quality, fermentation performance, water use, energy consumption and product yield.
The objective would be simple.
Use the right production method for each ingredient.
This is where the five production technologies in my TECHXponential™ model become important.
- Alternative Proteins could provide new sources of dairy functionality without requiring every protein to come directly from additional milk production.
- Cellular Agriculture provides the broader framework for producing food ingredients through cells and biological systems rather than conventional livestock alone.
- Genomics could help companies improve microbial strains and understand the biological traits that influence fermentation performance.
- The Microbiome could help manage the complex communities of microorganisms involved in fermentation, food production and waste conversion.
- Synthetic Biology could enable microorganisms to produce specific proteins with carefully designed functional characteristics.
These technologies don’t operate in isolation. They’re accelerated by AI, Energy, Quantum Computing and Sensors.
AI could help optimise fermentation recipes and predict process performance.
Energy innovation will determine whether fermentation facilities can operate affordably and with lower emissions.
Quantum Computing may eventually help model complex biological systems and ingredient interactions. An early signal came in the 11 September 2026 Food Ingredients First report on True Nexus and Pasqal, which showed AI and quantum technology already being applied to analyse protein structures linked to gelation. That’s not proof that quantum computing is commercially solving food formulation at scale yet. But just think about this for a minute… over time, tools like these could make protein functionality more predictable and programmable. In circular dairy, that could help companies design or select caseins and other proteins for reliable structure, melt, stretch, binding, water-holding and texture, with less formulation trial and error.
Sensors will provide real-time information about feedstock quality, contamination risks and production conditions.
I’ve explored this broader technology landscape in my overview of the five technologies shaping the future of food.
The casein application is particularly compelling because functionality creates a clear commercial target.
If a new production method can deliver the structure, melt and stretch that cheese manufacturers need, it has a stronger business case than an ingredient competing only on sustainability claims.
That’s a crucial distinction.
Sustainability may open the door, but performance will keep the customer.
Three strategic priorities for food leaders
For dairy executives and Boards, the lesson extends well beyond one partnership.
Future competitiveness may depend on how well a company maps and manages its side streams. Waste streams could become data assets, resource assets and potential revenue streams.
The real question may be how many valuable molecules remain trapped inside them.
I see three immediate priorities.
- Build partnerships across the value chain: The winning capability may sit between a dairy manufacturer, a biotechnology company and an equipment provider. No single organisation needs to own every part of the solution.
- Design for integration early: New fermentation processes need to be developed alongside purification, food safety, quality assurance, factory operations and customer requirements. Commercial integration can’t be left until the end.
- Measure circularity commercially: Carbon and water reductions matter. So do yield, cost, reliability, functionality, regulatory readiness and customer demand. Circularity becomes meaningful when the system creates value at every step.
This is exactly the type of question I explore through my FutureCUBED™ process. Horizon scanning identifies the signal. Future foresight explores how the system could evolve. Strategy and implementation determine what an organisation should do next.
The opportunity is not simply to make dairy more sustainable.
It’s to redesign dairy as a more flexible, resilient and intelligent production system.
Circular dairy is becoming a strategic possibility
Standing Ovation’s reported funding and commercialisation plans suggest that investors continue to see potential in precision-fermented dairy proteins. However, investment interest isn’t the same as market adoption.
Regulatory approvals will matter. Cost will matter. Purification will matter. Consumer trust will matter. So will the ability to produce consistent, food-grade ingredients at volumes that manufacturers can actually use.
But the direction of travel is becoming clearer.
A difficult waste stream can become a feedstock. A microorganism can become a production partner. A functional protein can become a commercial bridge between traditional dairy and new food systems.
That’s why I’m watching this space so closely!
Circular dairy becomes real when it improves economics, functionality and resilience at the same time.
The bigger question is this…
How many other food industry “waste” streams are waiting to become tomorrow’s most valuable ingredients?
To continue the conversation email me at tony@futuristforfood.com
