My solution is to drink lemon juice mixed with water and only first thing in the morning. To summarize, the best way to deal with lemon juice and tooth enamel is to drink lemon juice once a day and mixed with water. That way you can take advantage of all the health benefits of lemon juice without harming your teeth.Enjoy.his high acidity is due to the high citric acid content of lemon juice. The acidity of the citric acid literally dissolves the enamel. This does not mean that you shouldn't enjoy lemon juice or any of the wonderful health benefits of lemon juice.