It has to be done! This time of year the strawberries are right in season, fresh, ripe and reasonably inexpensive. Not the easiest of jam to make because they are very low in pectin and acid
- the two crucial ingredients
for a good set.
I used Jam Sugar. Equal quantities
of strawberries and jam sugar. This sugar already has apple pectin and citric acid added
. I also added the juice of a couple of lemons just to be sure. Leave the strawberries in the sugar for 24 hours with nothing else added.
Next day, the sugar will have drawn out lots of juice from he strawberries and released what little pectin there was in the strawberries. No water has been added at all
, this juice is just from the strawberries. I then mashed about a third of the strawberries with a potato masher - just to give the jam a bit more consistency.
The jam must reach 102 degrees C to achieve a set.
I usually ignore any written cooking times because different fruit, levels of pectin and acid vary so much it is impossible to say 10 minutes or 2 hours.
I always do it this way. Put a clean plate in the freezer for 5 minutes to get cold. Drop a teaspoon of jam on the plate and put back in the freezer for 5 minutes to cool. The above photo is not set yet.
You will keep having to repeat this process every few minutes or so until the jam begins to set. You can see here it wrinkles
when I draw my finger through. Don't forget the jam will continue to cook just a few minutes longer when you turn off the heat and cool it for 10 minutes.
these jars in the oven, and made sure they were still warm when I poured the warm jam into the jars. I sealed the lids immediately so that as the hot air cools inside the top of the jar, a vacuum is formed. Bon apetite!