Wash strawberries Cut off green leaves Bend strawberries 1 kg strawberries 1/2 kg sugar Mix sugar and strawberries well in a large saucepan
Mash sugar and strawberries with a hand blender while stirring at high heat for about 3 minutes bring to boil Caution: Strawberry puree foams
Put strawberry jam filled to the brim into jars Close lid and turn glass upside down