It has more of a slab serif font thats a little more modern but still fits with the organic coffee ring. I can't really tell the exact font.
I think the text works well with the over all design, the serifs help make the text a little less modern than a san serif font and make it clean so it works with the coffee stain. But it is still super geometric and so the organic circle stands out.
It inspires me in my work to replace letters when it works well to help enhance an idea.
