Cleaning Pizza Stone

[everydaystuff888]

Bought a Lidl Pizza Stone, but after one use it has burnt in pastry and tomato juice (with green bacteria growing???)
Is this Normal?
What is the recommended way to clean a Pizza Stone?

I recently bought one too. I read that washing them was not recommended, and just to scrape food off. I did that, but afterwards I set the pizza on on parchment, and then just dropped onto the hot stone in the oven, keeps the stone clean.

We bought one a few years ago before buying our pizza oven. Still use it occasionally when we can’t be bothered to light the outside one (wood fired so take a while to get to temperature!).
Think it was from Amazon but the advice was to just scrape down and not to wash. And it maybe needed sealing or something at a very high temperature for a certain amount of time before first use to hopefully prevent future seepage