In fact, “when you test products for genetically modified markers, they wouldn’t be that,” says Paul Kollesoff, the general manager and co-founder of The Urgent Company, the makers of Brave Robot ice cream. And it’s not considered a genetically modified organism (GMO), because the whey itself isn’t modified. The resulting whey is identical to what’s produced by cows, in terms of nutrition and function. Once Perfect Day had that microflora, the next step was to put it in a fermentation tank with sugars and let it do its thing.
It’s basically a fancy form of fermentation, the same process that happens when yeast (a fungi) turns grains into beer or bacteria (another type of microflora) turns cabbage into sauerkraut. Here’s how: Their scientists took the genetic sequence of a cow (without harming it!), and used that as a “blueprint” to change sections of the DNA of the fungi so it would produce whey when fed certain sugars. To recreate the protein, Perfect Day developed a specialized microflora (theirs is a type of fungi, though a bacteria could also work) and “trained it to act like a cow,” says Briggs.
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