Deco Icing in a tube...how long till it goes bad

[Disney-Kim]

I have some of those tubes of colored decorative icing that have been opened and in my drawer for a long time...do you think they are bad?
how long do you think that stuff lasts?
thanks

 

[Evil Genius]

I think it's like Twinkies, lasts forever.

If it were me, I'd toss 'em

 

[ClarabelleCowFan]

You have leftovers??

Icing never lasts at our house.