Preserving Fruit: How To Make Jam
Instructions
Take bunches of grapes and blueberries.
Take the blueberries and mash them little. Keep the blueberries in the blender and extract the juice from them.
Similarly you can extract the juice of grapes also.
Collect the juices in a big vessel and boil them for 10-15 minutes.
Add sugar and allow it to dissolve in the fruit juices. Add little fruit pectin to it.
Take the jars and fill them with juices. Make sure to leave quarter inch of headspace for each jars.
Tighten the lid of the jars.
Boil water in a pressure cooker and place all the jars into it.
Process them in hot water bath for 5-10minutes.
Remove the jars and allow them to cool.