Many have heard about the 1992 lawsuit against McDonald's, where spilled coffee led to severe burns and a three million dollar lawsuit. Now, another customer is suing McDonald’s over their coffee, but it has nothing to do with temperature.

A woman suing McDonald’s claims that she was served coffee allegedly containing chemicals used to clean the coffee machine. The woman says she was told coffee was not available due to the machine being cleaned, before hearing someone in the background say it was ready.

The plaintiff in the lawsuit says that after consuming the coffee, she sustained damage to her throat that might require surgery to correct. KTLA reports that the owner of the Alabama McDonald's franchise location is investigating the situation.