Shake all the elderflower to ensure that the insects and small leaves fall out.
Don’t wash the elderflower, because you lose a lot of flavor!
Put the elderflower in a pan and fill the pan with 2 liters of cold fresh water.
Make sure the elderflowers are under water.
You can impose something heavy, for example, a plate to hold the flowers under water.
Also, don’t use too much water, just enough to put everything in.
Cover the pan with plastic wrap or simply put on the lid.
Leave the elderflower in a cool place for one day.
Pour the elderflower water through the sieve.
Throw the water away.
You can pour the juice again trough a tea cloth.
Pour the water into a pan and bring and boil it.
Just before the water boils, put 800 gram sugar and the juice of 4 lemons.
Let the sugar melt and don’t boil to long because you lose some flavour.
Pour the hot syrup in a clean sterile glass bottles.