In our old house (built ca. 1905), we had lovely Welsh quarry tiles on the kitchen and dining room floors.
We went out to look for tiles today (in Cardiff). Apparently, they're very hard to get now - all the quarries closed down. It seems a shame that instead of a perfectly attractive local product, now the decent tiles have to come all the way from mainland Europe.
That was just an aside really. My main point: are (even hardened) terracotta floor tiles asking for trouble in a kitchen?
Daniele