https://www.theguardian.com/food/202...re-complicated
Quote:
At the time of my visit, Eat Just grew its meat using a substance called FBS: foetal bovine serum. This is what it sounds like: a nutrient dense serum acquired from foetal calves – in a process that is not slaughter-free. Eat Just were, at the time of my visit, hoping new technological advancements would allow them to move away from the use of FBS. The chicken approved by Singapore is “produced with a very low level of bovine serum,” Eat Just say. “However this is effectively removed through the harvesting and washing procedure.”
The chicken cells used to grow the meat for the nuggets do not require the slaughter of a chicken. Those cells are acquired with a simple biopsy – but the FBS does require the slaughter of a pregnant cow. As of now, there is simply no other substance that has the ability to support the growth of the cultured meat like FBS does. So, to put it simply: the Just Inc chicken nugget is made from chicken cells gathered from a biopsy, grown inside a serum derived from foetal calves.
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Well that's not very nice.
Oh well. I figure it's gonna take at least a decade for this process to be refined to the point where it's not just commercially viable, but also ethically irreproachable.