Earlier quoted context omitted.
Here it looks like its squeezing a grape instead: https://www.youtube.com/watch?v=HyQs2OAIf-I&t=43s Bit hard to tell whether it remained intact.
The leaf on the darker grapes looks like a fabric leaf, I'd kinda bet they're all fake for these demos / testing. Don't need the robot to smash a grape when we can use a fake grape that won't smash.
This video reeks of the same shenanigans as perpetual motion machine videos.