Safety chiefs served a record number of closure orders on food firms last month.
A total of 13 outlets were hit for breaches of food safety laws in July, with regulators warning businesses to step up hygiene practices or face being shut down.
Food Safety Authority of Ireland (FSAI) chief executive Professor Alan Reilly said he was hugely disappointed by the record monthly figure for closures.
"The same recurring, but easily preventable faults continue to contribute to the closure of food businesses and this must be addressed by food businesses operating to unsatisfactory standards," he said.
"Dirty premises, unhygienic practices and improper storage of food simply will not be tolerated.
"Food inspectors across the country are as active as ever during the summer months carrying out food inspections so that consumers can feel confident about the food they are purchasing."
Closure orders are issued when there is likely to be a grave and immediate danger to public health, or where an improvement order is not complied with.
The order can refer to the immediate closure of all or part of the food premises, or all or some of its activities.
The owners of four food stalls in Dun Laoghaire, Co Dublin, were reprimanded and made to cease trading during the popular Festival of World Cultures.
Failures in food standards were also found at a Chinese food stall at the Oxegen Festival.