Instructions

1. Rinse the strawberries and remove the head, cut in half if the berries are large than 2 cm. Weight the fruit. Calculate the sugar you will need and weigh it. (example: 500gr fruit is 70gr X 5 in sugar)
2. Bring fruit and sugar to boiling point, add lemon juice, stir continuously with wooden spoon as not to burn the jam. Use a thermometer to ensure you reached boiling point of 100 degrees C and boil for further 8 to 10 minutes. 
3. Remove from heat and use ladle to transfer to the jar(s), close the lid and let cool down before either serving or storing.