How can I prevent simple syrup from crystallizing?

Question

When I store it in the refrigerator, my simple syrup always seems to crystallize. How can I prevent this? How long should I expect simple syrup to keep?

Asked by KatieK

Answer

There are a couple of things you can do to prevent sugar crystallising. You can add some glucose syrup, or you can 'invert' the sugar by adding some acid, namely cream of tartar. Both should be readily available, online if not at your supermarket. Cream of tartar is also useful when making meringue.

Answered by ElendilTheTall

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