Probably the vinegar in the ketchup. But tomato's are also acidic after they have been heated.
Or did you mean to ask me why I just did not use vinegar? 😀 Guess the answer is...the ketchup sticks to the board.
Or did you mean to ask me why I just did not use vinegar? 😀 Guess the answer is...the ketchup sticks to the board.
I guess I was asking both. I think it's the vinegar as well, and you probably could have used a cloth laid over the board to hold plain vinegar in place. I bet the vinegar would be cheaper but wouldn't taste near as good. 😉
We used to clean and shine copper pennies with vinegar and salt. The vinegar does its thing and the salt acts as a gentle abrasive.
The salt has a chemical/ionic action. There's a convincing thread on one of the science forums.
Ketchup is conveniently loaded with salt.
Ketchup is conveniently loaded with salt.
Sounds a little like the old "helpful hint" that explains how you can clean a stainless steel pot with soft drinks. It seems the phosphoric acid is what does the trick.
Hey, maybe this thread should be titled "Chow and Zen"! 😛
Hey, maybe this thread should be titled "Chow and Zen"! 😛
Its not unknown for labs to use soft-drink concentrates for etching/preping metal samples
for microscopy...
for microscopy...