Scientists say this might explain why outbreaks happen in countries that haven't had any cases in long periods.
In the study, individual slices of salmon, chicken and pork from supermarkets in Singapore were sliced and a sample of the virus was added to them.
They were then stored in freezing temperatures - between 4C, which is standard refrigeration temperature, and minus 20C, which is standard freezing temperature.
After 21 days, researchers found the virus was still present within the fish and meat samples, The Telegraph reports.
Scientists argue transmission via contaminated food isn't a serious infection route, but the movement of contaminated items to a neighborhood without infections could potentially initiate an epidemic .
The study states: "An explanation is required for the re-emergence of Covid-19 outbreaks in regions with apparent local eradication.
"Recent outbreaks have emerged in Vietnam, New Zealand and parts of China where there had been no cases for a few months.
"Importation of contaminated food and food packaging may be a feasible source for such outbreaks and a source of clusters within existing outbreaks.
"While it are often confidently argued that transmission via contaminated food isn't a serious infection route, the potential for movement of contaminated items to a neighborhood with no Covid-19 and initiate an epidemic is a crucial hypothesis.
"An infected food handler has the potential to become an patient of a replacement outbreak.
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