Harmless. Aluminum products are a wide range of food containers. Although ingesting aluminum will cause harm to human body, it is very safe because of its instability and an oxide film on the surface of aluminum products. Water can't destroy the oxide film, so boiling water is harmless to human body.
However, it is not recommended to use it in aluminum pot, because the frying spatula will destroy the oxide film and expose aluminum, which is harmful to human body.