Remove the flower and stem from the fresh rosehips.
Split them and remove the seeds, for example with a small spoon.
Rinse the shells in cold water to remove all seed residues.
Chop them finely on a cutting board and put them in a pot.
Add water and lemon juice and bring to a boil.
Let it boil for about 15 minutes.
Add almost all the sugar and let it boil for another 10 minutes
Carefully mix the pectin and the rest of the sugar together.
Add it to the pot and let it boil for 2 minutes.
Take it off the heat and remove the foam and any impurities on the top.
Rinse your jars in preserving liquid and pour the jam into the jars.
Seal them immediately and the jam is ready when it has cooled down.