The Government and the main supermarket chains have sought to reassure the public that shelves will remain stocked and that there is no need to bulk-buy groceries or other products.
They have maintained that the security of the supply chains into the shops is unaffected by the spread of Covid 19.
This morning, the Minister for Business, Enterprise and Innovation, Heather Humphreys met about 40 food producers and representatives from the main supermarkets.
She said she had been "absolutely assured that there was plenty of product in the supply chain".
The Minister also reiterated her call to the public not to panic-buy or stockpile after long queues formed at supermarkets yesterday.
Lidl says some of its branches had customers queuing again from early this morning. Tesco said its stores have also been very busy, while Aldi says it is limiting purchases to four units on all products to ensure that customers can buy what they need.
Most major grocery outlets doubled their warehouse capacity as part of their planning for a potential hard Brexit and say they have robust contingency measures in place.
Lidl has four regional distribution centres on the island of Ireland, including a warehouse in Newbridge, County Kildare, that supplies the Leinster area.
Regional director Niall Murray said the company has doubled the number of trucks servicing the Leinster distribution centre today, and has increased the number of pallets being filled by 80%.
Despite the significant increase in demand from shoppers, Lidl said its logistics and supply chain will ensure that its supermarket shelves remain stocked up.
Mr Murray said supermarkets have strong working relationships with their suppliers and that customers should have confidence in that system.
He also called for people to behave in a rational manner. He said products were being "picked and shipped on a daily basis".
Retailers like Lidl say they can react within 24 hours to increase the volume of locally and internationally sourced produce like fruit and vegetables and dairy products.
The supermarket chain has been dealing with the spike in demand caused by recent panic buying by doubling the amount of products it usually stocks.
While supermarkets are experiencing a sharp increase in demand, the retail industry said it is concerned about the fall-off in business in certain sectors.
Retail Ireland is calling on the Government to provide emergency supports to businesses which may have to curtail hours or close over the coming weeks or months.
Director Arnold Dillon said footfall has fallen significantly in some town centres over recent days.
Retailers say they want customers to continue to use and buy their services, and to do so in a responsible manner, abiding by the current recommendations provided by the HSE.
