A total of 12 food outlets were served with closure orders by the Food Safety Authority of Ireland last month.
In addition, a Dublin-based cash and carry received a prohibition order, meaning it has been banned from selling food deemed to have been dangerous to consumers.
The FSAI said the 13 orders, which represented a four-fold increase on the same month last year, was the highest number of monthly enforcements dished out in over a decade.
Among those eateries on the receiving end of FSAI's sanctions were Daniel's take-away of Strand Street Kanturk, Cork and Zaika restaurant of Stephen Street Lower, Dublin.
FSAI chief executive Prof Alan Reilly said those in the food industry ought to acknowledge their legal responsibility to ensure that the food they serve is safe.
"This increase is extremely disappointing and serves as a stark reminder that there continues to be food business operators who put consumers' health at risk by not complying with their legal obligations for food safety and hygiene," he said.
"We are re-emphasising to all food businesses the need for rigorous compliance with food safety and hygiene standards."
Enforcement Orders are issued by HSE environmental health officers for poor food safety and hygiene standards.