Wash the lemons with warm water and cut into slices.
Mix the elderflower and sliced lemons in a large covered bowl or pot.
Boil the water. Add the sugar and stir until it melts. After the sugar melts, pour in the lemon salt and stir until it melts.
Pour the hot syrup you prepared over the elderberries and lemons.
Leave it at room temperature until it cools. After it cools, close the lid and keep it in the refrigerator for 3 days.
Your drink will be ready after 3 days. After straining, fill into bottles or ice cube trays. Dilute with mineral water or water before drinking. You can consume ice cubes by pouring them into glasses of water or mineral water.
Your Swedish Saft drink, which will last for months, is ready. Bon Appetit!