I bought an old fashioned glass ketchup bottle thinking that environmentally it would be better than the newer fancier plastic ones. I’m not a klutz so I didn’t have a fear of it being dropped and there are no kids to worry about. I liked it, it worked, I would give it a strong shake before pouring so I never had a problem and never needed a knife to extract the sauce. But there is something to be said about the little squeeze nipple that the new bottles have that nicely pushes the ketchup out and pulls that last little bit of the drop back in. Keeping the opening clean and ready for the next use. The glass bottle has become gunky with hard ketchup flakes around it. I don’t want to use a paper towel to wipe it after each use, that is wasteful too. So I think I may have to go back to plastic. Convenience has won over environment. Once again.