Sugar scrub cubes need preservative?

[Tabitha]

Sugar alone does not preserve jams and jellies. It is necessary to process the jars in the boiling water bath to prevent spoilage. If the sugar was the answer, there would be no reason for the hot water bath process. If sugar alone preserved jams and jelies there would also be no resaon for refridging them after opening.

 

[dagmar88]

And my homemade jelly (kept in the fridge) grows nasties after 6 months too...