Blue Bell Creameries has voluntarily stopped operations at its manufacturing plant in Broken Arrow, Oklahoma, so it can be inspected to determine out how some ice cream products recently were contaminated with listeria.

“We are taking this step out of an abundance of caution to ensure that we are doing everything possible to provide our consumers with safe products and to preserve the trust we have built with them and their families for more than a century,” said the company in a release.

The shut-down comes not long after listeria monocytogenes was found on a chocolate ice cream cup that was produced at the Broken Arrow plant on April 15, 2014, and recovered from a hospital in Wichita, Kansas.