I made too much RI. I don't want to throw it away so I put it in a ziplock bag. My question is: How long will it be good for? Do I store it in the fridge?
Thanks in advance for your help!

I freeze my RI and it lasts a long time. When you take it out of the freezer, mix it when it defrosts before using. (it never really gets rock hard in freezer)

I'll try it, thanks so much!

When i make a big batch of Antonia'a, i keep it nice and stiff and transfer what i need to another bowl to thin out. I then refrigerate the rest, which lasts quite a bit of time (longest for me was a month when i used it; don't know how long it would last after that). The stiff RI doesn't tend to separate as does the thinned out one, so i generally don't need to re-beat; just scoop out what i need, thin it out, and use.

Thanks luv2bake6. i make mine pretty stiff too. I'll probably be able to use it up for valentines day. Thanks for the tips!

my WMI told me 3 years if properly stored. I use the basic RI recipe from wilton.

I keep mine in a container at room temp, lasts me a few weeks

I keep mine in a air-tight container (like tupperware) at room temperature and away for heat and sunlight. I store it that way for up to 10 days. After that, I only use it for practice, not consumption.