Do I dare?

I got some new button batteries recently. Each of them had one of these stickers on which are supposed to taste horrible, to stop babies from eating them. I really want to lick the sticker to find out what it tastes like, but I’m worried that it might be coated with the same thing that the put on Nintendo Switch game cartridges (also to stop them being eaten). Apparently that is a truly horrible taste that takes ages to go away.