A Leyton Aldi was forced to close after a customer found mouse droppings and bite marks on her Easter egg.
The store on Heybridge Way was immediately closed by Waltham Forest Council and was allowed to reopen on April 28 after pest control treatment and proofing measures.
Council officers visiting on April 20 following the customer’s complaint found rodents among food items for sale and gnaw marks on some products.
Cllr Clyde Loakes, deputy leader and cabinet member for the environment, said: “Now more than ever we need to be able to rely on supermarkets and stores to make sure they are keeping their premises tidy and free of pests.
“Closing a store at a time when residents are struggling to get food and household goods is the last thing we want to be doing – but if the health of customers is at risk, it is our duty to take firm action.
“I hope that the necessary action of our food safety officers sends a clear message to business owners: even during Covid-19, we are still enforcing against food safety breaches and we are still prepared to take the required steps to keep residents safe.”
Residents with concerns about food safety at any business – takeaways, restaurants or supermarkets – can report them to the council online via the website.
An Aldi spokesperson said: “Our Lea Bridge store closed temporarily after falling short of our usual high standards, but has since re-opened. We are sorry for any inconvenience this caused.”.