
Meet Margaret's Finest. Casein by the world’s first stainless steel cow.
Just in: Margaret’s Finest receives FDA “No Questions” letter for animal-free casein
Margaret’s Finest has become the first precision fermentation-derived casein to receive a “no questions” letter from the U.S. Food and Drug Administration (FDA), following the agency’s review of its Generally Recognized as Safe (GRAS) notification.
And now, the work on U.S. ground begins. The world’s first animal-free casein is ready to launch. Food companies (EU or US) with application ideas brewing can contact us directly via


Efficient
We design proteins with the exact functionality you need, from perfect stretch and melt to creamy texture and stable foams. Beyond the cow, beyond cheese.

Sustainable
Our process produces far lower greenhouse gas emissions, uses much less land and water, and needs smaller quantities to achieve the same results – saving costs and resources.

Consistent
Produced in a controlled environment for stable quality, year-round supply, and without the antibiotics found in conventional dairy farming.

We’re not doing this alone
At Those Vegan Cowboys, we love cows – and we love great food. That’s why we’re building a better way. Using Margaret, the Stainless Steel Cow, we produce pure casein and other milk proteins without a single animal involved.
And we’re not doing this alone. We work hand in hand with leading cheese makers, food companies, farmers, and top chefs. Together, we’re shaping the future of food. Delicious, sustainable, and free from the environmental and geopolitical risks of animal farming.
A win for the planet, the animals, and food lovers everywhere.





