A Perth woman has left a one-star review after a cafe charged her $5 for warm almond milk to top off her own matcha she bought from home.

Food reviewer, Perth Breakfast Liz Sheehan told Oliver Peterson on Perth Live she cannot understand why the lady was so upset.

“I think it’s really harsh… things aren’t free,” said Ms Sheehan.

“Just make it at home.”

Pressed PLAY below to hear why her review is so controversial