What do you need:

1 organic lemon, washed and dried,

a few sprigs of fresh lemon balm or dried

4/5 drops of greensweet liquid stevia lemon (optional, or add more or less to taste)

This is how you make it:

Use an organic lemon. Sprayed lemons contain a wax layer. Grate the lemon and cut into thin slices. Do everything in the jar and pour at least two to three liters of water on it. Stir well.

Source: Monique van der Vloed