Bix Produce, the company that the Minnesota Department of Health has identified as the supplier of E. coli-contaminated lettuce to Taco John’s restaurants in Minnesota and Iowa, announced that it will implement new measures to ensure produce safety.

The Minneapolis Star-Tribune reports that Bix is hiring a longtime crisis management spokesman and trying to prevent further loss of sales.

The changes came a day after the produce processing company was dropped by Taco John’s as its supplier of shredded lettuce. Minnesota health officials have linked the E. coli cases to shredded lettuce supplied by Bix. The E. coli-contaminated lettuce has sickened more than 20 people in Taco John’s restaurants in Minnesota and Iowa.