JBS Canada is back to two shifts this week after going for a month with one shift.
It will not change employment which runs between 700 and 1,100.
Some employees have chosen not to work after some employees tested positive for COVID-19, but the plant kept on processing cattle at a reduced rate.
Spokesman Rob Meijer said the company has implemented more than 100 preventive measures since January, including temperature tests of all workers, providing face masks, and partitions on production lines.