The retail industry has reiterated its call to the public to avoid bulk buying groceries.
Retail Ireland said there are no issues whatsoever with the supply chain and there is therefore no rationale for people to panic buy.
Such action undermines normal supply processes, it said.
Retail Ireland director, Arnold Dillon, said bulk buying is putting totally unfair strain on retail workers and is totally unnecessary.
Earlier today representatives of the main supermarket chains met with Minister for Business, Heather Humphreys and sources present said it was clear that there are no problems with supply at manufacturing, distribution or retail level.
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SuperValu saw a surge in demand yesterday and is calling on its customers to "bear with us" as it delivers stock to stores across the country.
Managing Director Martin Kelleher said SuperValu had made every effort to stock our stores overnight and all 223 SuperValu stores were replenished again today.
"We would call on shoppers to only purchase items where necessary, as we may have to introduce some restrictions in certain stores out of fairness and particularly in consideration of vulnerable people in the community," Mr Kelleher said.
He assured customers that its retailers, staff in stores, drivers, warehouse staff and suppliers are all going above and beyond to minimise disruption. "We thank them for their ongoing efforts and thank you for your patience," he said.
Aldi said its 142 stores remain open across Ireland. It said its store and warehouse teams are working around the clock to restock and replenish all daily essentials as fast as they can.
It says that due to unprecedented demand it has limited customer purchases to four units on all products to ensure all customers have an opportunity to purchase them.
Tesco said its stores continue to be very busy today. It is reiterating its call for people not to alter their normal buying habits.
Lidl also repeated that its supply chain is robust and agile and it is confident of maintaining supply of key lines as consumer demand remains high and its stores are continuing to receive deliveries as planned.
Retail Excellence Ireland's chief executive David Fitzsimons also said there is no necessity to panic buy saying all major grocery outlets are "bulging with product".
He said the continuity of supply, especially in grocery, has been boosted by Brexit planning.
He said over the last few years all major groceries outlets had "doubled and trebled" warehouse capacity in planning for a potential hard Brexit and as a result are 'bulging with product'.
He said people "need to calm down" as robust contingency plans will ensure food supply "for months and months".
But he said we need to very carefully plan emergency supports for those businesses which will have to curtail hours or close.