Bring the strawberries, sugar and water to the boil, simmer for approx. 10 mins. until the fruit is soft. Puree the strawberries, simmer for a further 3 mins. Pour the contents of the pan through a jelly bag or fine sieve, drain well, do not squeeze out. Return the liquid to the pan, add the lemon juice, bring to the boil.
To bottle up the syrup
Pour the syrup through a funnel into bottles that have been rinsed in hot water, seal immediately, leave to cool.