Sort the strawberries, remove the sepals. Put the berries in a saucepan and sprinkle with sugar, leave for 6-8 hours.
Pour water into the pot and put the pot on the fire. Stirring gently, bring to a boil. Simmer over medium heat for 5 minutes, remove from heat and remove foam. Leave the jam for 5 hours, so the jam will be more fragrant, and the berries will retain their shape.
Put the jam back on the fire and cook for 30 minutes. after boiling. Check the readiness of the syrup by dropping a drop onto a cold saucer.
Cool the jam and arrange in sterile jars.