Good crop of home-grown strawberries

For some reason, there was a good crop of my home-grown strawberries this year
so I made strawberry jam for the first time in a long time.
I spread on toast and eat as yogurt or pancake topping.
It’s very good.

[Basic recipe]
Strawberries 　 1kg
Sugar       500g
Juice of a lemon
*Although it’s all right to cut the amount of sugar, then it cannot be preserved
for a long time.

Simmer all the ingredients for 30 minutes while skimming scum.
It’s not easy watching the pan for 30 minutes, so I make it while preparing dinner.
Boil airtight containers and dry, when the jam cools, bottle up and keep it in the fridge. (H.S)