Alpine Strawberry Jam
Alpine strawberry jam is jam-packed with rich strawberry flavor.
Ingredients
- 4 cups whole fruit or about 360 grams
- 2 cups sugar 400 grams
- 2 Tablespoons lemon juice 30 ml
Instructions
- If canning, prepare a water bath canner before beginning.
- Place all ingredients in a deep saucepan or jam pot. Mash with the back of a spoon to get some of the berries to break up and release their juices.
- Bring the mixture to a boil on the stove over medium-high heat. Boil hard, stirring frequently, for about 8 to 10 minutes until the jam reaches gel stage. (See notes)
- Once the jam has set, remove it from the heat and ladle into prepared jars leaving 1/4 inch headspace.
- If canning, process in a water bath canner for 10 minutes (or 15 minutes if above 6,000 feet in elevation).
- If not canning, store in the refrigerator and use within the next few weeks.
Notes
You can test for this jam's set on a plate that's been chilled in the freezer. Or, you can use an instant-read thermometer, which is more dependable.
Gel stage is when the sugar concentrates enough to raise the temperature to 220 degrees on an instant-read thermometer (at sea level). For every 500 feet above sea level, that drops by 1 degree as the boiling point of water lowers with elevation.