Some Dutch scientists have served up the world's first "test tube" hamburger.
This beef was grown in a test tube from the stem cells of a dead cow at a lab in the Netherlands.
It took five years and cost $300,000 to create.
A panel of experts in London took the taste test.
"There's quite an intense taste; it's close to meat. It's not that juicy, but the consistency is perfect," said Hanni Ruetzler, an Austrian nutritionist
Other testers said the meat lacked flavor, mainly because there was no fat. The beef was made purely from muscle.
While there's still more work to be done, researchers said test tube beef is the solution to a growing beef demand.
Some animal rights activists believe it's and a humane alternative to slaughter.
However, for some, the idea is hard to swallow.
"I think it's interesting, but I don't know if I'd want to eat it," said Stacy Morris.
"I wouldn't personally eat it, no way," said Daniel Moreno.
An independent study says lab-grown beef uses 45 percent less energy, produces 96 percent less greenhouse gasses and requires 99 percent less land to produce.