I've had good decaf where I can't taste the difference between that and the caffeinated stuff. That's not the same issue here. And when it comes to soft drink

I've had good decaf where I can't taste the difference between that and the caffeinated stuff. That's not the same issue here. And when it comes to soft drink, I can actually taste the difference between the caffeinated stuff and decaf. My mom ran that double-blind test on me when I was younger, where I was not exactly a willing participant. When I proved to her that I could actually taste the difference, she stopped trying to run double blind experiments on me.