[abcc8]

Mammalian cells in research labs are grown in media that is composed of 1) multiple powdered components that are readily obtainable through isolation from bacteria/yeast or synthesis and, 2) 10% FBS (fetal bovine serum). Until these cultured meat companies can come up with a suitable replacement for FBS, due to environmental, moral, cost, etc concerns, none of these solutions are terribly viable. I personally wouldn't want to eat (or pay for) a tiger streak that required liters of FBS to grow.

[PretzelPirate]

> I personally wouldn't want to eat (or pay for) a tiger streak that required liters of FBS to grow.

Since FBS is collected from a bovine fetus at slaughter houses, I'm not sure that anyone who currently eats meat and dairy should have an ethical problem with this. You're already paying for the animals to be slaughtered.

[pclmulqdq]

I assume that if this is a serum that comes only from bovine fetuses, more cows are slaughtered per pound of cultured meat than per pound of natural-grown meat. That would make this much less sustainable.