Just made my elderberry syrup.
1.5 kg elderberries, 0.5kg blackberries, half a ground nutmeg, cinnamon 4 teaspoons, ginger 2 teaspoons, 4 star anise, 8 cloves, lots of honey added after the simmering of the mix for 30 mins. Then some vitamin c powder, 2 tablespoons. Should kills all known germs.