JoeSpareBedroom wrote:

>>> That's only three weeks. I bet it's not growing anything yet
>> I'd agree. The store bought stuff doesn't have anything added to it to
>> preserve it and it sits there a while. I would have no qualms trying it
>> and if find eating it.
>
>
> I suspect the lemon juice adds enough acidity to make the stuff keep. As
> long as you don't contaminate it, it's good for longer than one might think.

Yes, you're right. I originally meant added preservatives, but the lemon
juice in the recipe would add its own natural preservative assist.