Can you provide some clues or hints so I can find these UK historians that make these claims? It’s frustrating, because I’ve been told off for asking for evide

Can you provide some clues or hints so I can find these UK historians that make these claims? It’s frustrating, because I’ve been told off for asking for evidence, even though I didn’t ask for evidence. Every time I try get an answer, all the resources I find contradict the claims here. Water was the most common drink. Communities were built around wells or other water sources. The Romans built massive systems of aqueducts so they could have more water. I did a Google search and found a page full of results directly contradicting the claim that people drank beer because it was cleaner.