> I don't see any cites for people who believed that boiling could not happen in fragile containers. > The people around me aren't anthropologists claiming to

> I don't see any cites for people who believed that boiling could not happen in fragile containers. > The people around me aren't anthropologists claiming to understand ancient societies. Are they people or not? It's a simple and quick experiment to have an idea of what current people think about this fact. You'll not be able to write a scientific paper about it but it will good enough to for a reasonable opinion on the topic.