<<Disclaimer: Verify this information before applying it to your situation.>> > Does xanthan gum need to be stored in a special way--does it go bad > quickly? I put mine in the refrigerator after opening--could this be the > problem? I believe Ener-G Foods recommends keeping it in the frig. Is it in an air tight jar? If not, it has probably absorbed all the refrigerator odors, just like a box of baking soda.