Only use the leaves from the woodruff. Wash off, dry and then let wither overnight.
Put the withered leaves in a container with the water and cover, leave to stand in a cool place for 5-6 days.
Add the lemon on the second day. First cut into slices. Check daily whether the woodruff is fermenting or getting moldy.
Then strain the leaves through a sieve and put the liquid, halved, each with a packet of preserving sugar 1: 1 and cook according to the instructions and place in clean, hot twist-off glasses.
In each of the glasses I put a piece of lemon without a peel, which I had with me, and close the glasses with the hot lid. The glasses are turned upside down for about 5 minutes and then turned back again and then left to cool.