So the other day i went to the local supermarket (Mercadona) and I've found 70% alcohol wipes. The ingredients are aqual, ethanol, and isopropilane alcohol. Do you think it's safe for the cup? How come that they mention first agua and they call it 70%? Even if it's 35% etanol and 35% rubbing alcohol it doesn't make sense. I've read in an other post that only rubbing alcohol is safe on cups. Then, how come the Lunette wipes contain ethanol?