Here's the link to more info from Sierra Nevada, including exactly what is being recalled and how to tell if your bottles are the ones at risk
http://sierranevada.com/qualitymatters
It's only bottles and only the ones from the Mills River NC plant. If the date code on your bottle or box of bottles has a "C" in it, it's from Chico, CA and is not affected. The bottles with "M" in the code might be affected, check the link.