Seal Up The Sweetness---homemade Blueberry Jam
1.
Wash the lemon, take a little dander, and squeeze the juice for later use.
2.
Rinse the fresh blueberries without rotten fruit, pour them into the pot, add rock sugar and granulated sugar.
3.
Heat over medium and low heat, and stir while cooking.
4.
Stir until the sauce thickens, add lemon shavings and lemon juice, continue to simmer for 3-5 minutes, turn off the heat.
5.
Bottle the jam while it is hot, close the lid, put it upside down to cool, and store it in the refrigerator.
Tips:
1. Put the jam into the container while it is hot, and use the hot air to turn the bottle into a state close to vacuum to increase the shelf life.
2. Use a dry spoon when taking food to avoid deterioration. If stored properly, it can be stored for 2-3 weeks, so you don't need to do too much at once.
3. Boil the jam when it is hot, it will feel thicker, and it will become thicker when it is cold. If it is thick when it is hot, it will feel too dry when it is cold.