I accidentally used the water that I had put my saline rinse in for cooking my food was very salty in the gravy I made. I cant find an answer if this Posted on January 1, 2019 by 0 Vote Up Vote Down Ask A Doctor Staff asked 4 years ago I accidentally used the water that I had put my saline rinse in for cooking my food was very salty in the gravy I made. I cant find an answer if this is harmful to do. From Marie OlsonD 1 Answers 0 Vote Up Vote Down Ask A Doctor Staff answered 4 years ago Using water with our mixture packet in food would not be harmful as it is just USP grade sodium chloride and sodium bicarbonate (highest quality). Please login or Register to submit your answer Username or Email Address Password Remember Me