In order not to destroy the vitamins, I stir the sugar and citric acid in the water until it has dissolved. Then I add the elder blossoms and the lemon balm or mint.
Now the bucket is covered and placed in a cool place (basement). Stir twice a day.
On the third day, filter everything (first coarse, then fine) and fill into bottles.
Tip:
If you don`t have 400 g of lemon balm or mint, you can take less. You can also cut organic oranges or organic lemons into slices and add them.