I always thought it was coffee like the Java logo lol

The images in the GPs link show a common pictogram for artisanal bread. The image itself is actually a close representation of the real thing. An image search for sourdough will return many images showing bread with a similar appearance. Anecdotally, I’ve never seen that hot springs symbol used for bread, and I’ve lived in the west my whole life. Not without irony, but connecting the bread symbol with the hot springs symbol feels like the sort of mistake an llm would make.