Strawberry Jam
Ingredients
Directions
Make the jam
Mash the strawberries and sugar together well.
Transfer the mixture to a preserving kettle.
Boil for about 20 minutes.
Jar and seal
While warm, pour into jars.
Seal the jars once the jam is cold.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
What each ingredient does
- Strawberries
- Provide the fruit flavour, colour and pectin-based body that the jam sets around.
- Sugar
- Adds sweetness and helps the jam set, while also preserving it by drawing out water.
The step that matters
Boil for about 20 minutes. Boiling concentrates the mixture and drives off water so the jam can thicken and set. Too little boiling leaves it runny, while too much can darken and dull the flavour.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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