Although lockdown measures are being eased across England, the rhetoric from government to encourage people to wear face masks has increased.
At the moment, it is not compulsory to wear face masks in supermarkets but it is on public transport like buses and trains.
Despite this, shops have their own individual rules and guidelines on whether customers should wear face coverings when browsing in store.
Here are all the latest rules and guidelines on wearing face masks for supermarket shoppers at five of the UK's most popular food retailers, according to Surrey Live.
Aldi
Aldi issued face masks to all staff early on in the pandemic but it is not compulsory for them to wear.
"Aldi will be providing the option of face masks to all its store-based colleagues to further support their safety as they continue to feed the nation," a statement said.
"This move is in addition to the previously announced provision of gloves and clear screens that are being installed at more than 7,000 checkouts.
"Colleagues can also now access the Government’s Covid-19 testing programme for critical workers.”
Customers also have the choice of whether they want to wear a face covering or not.
Asda
The supermarket giant has also left the choice up to customers when they visit stores.
A spokesperson said: "We are complying with all Government guidelines and we welcome customers wearing face masks or not.
"Our colleagues all have the option of wearing face masks which we have supplied and the colleagues in clinical settings (pharmacy and optical) have been required to wear masks since the start of the pandemic as per the government guidelines on clinical workers."
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Tesco
The supermarket chain has not made wearing masks compulsory for customers or staff, although they are available if staff wish to wear them.
Instead, social distancing measures have been introduced, including how many shoppers can shop at one time.
The retailer previously said the government guidance refers to indoor spaces where social distancing is not possible.
Sainsbury's
Similar to its rival, the supermarket chain has masks available for all colleagues should they wish to wear them.
A spokesperson explained: "Masks are available for all our colleagues who wish to use them while they work or travel to their place of work.”
However, no one in the store is made to wear these and social distancing measures have been introduced to keep shoppers safe.
Marks and Spencer
M&S Foodhall stores have remained open throughout the pandemic and made changes to how operations are run.
Face visors have reportedly been available to staff since the beginning of April.
However, wearing the visors - or any face coverings - is not enforced.
