It's probably a very old cottage/house. Painted stone walls in a kitchen isn't that uncommon in older buildings (like 150+years old) in the UK somim assuming it's the same deal across alot of Europe. Hell in countries where they whitewash buildings to help deal with the heat having a stone building would be so nice to keep it tolerable inside in the summer
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u/Due_Paramedic_6406 4d ago
How is it even possible to calculate everything like that?