Hi! It would be interesting to know more and know how it's manifesting itself.
Mould could be an issue with being unsightly in your environment but also limit product shelf life. In either case, the first step is good cleaning and good disinfection. If you're doing both of these then it shouldn't be an issue. That said, if you have problems with mould in your product it's not only environmental mould which could be an issue. If you're using MAP packing especially to lengthen life then mould complaints or detection in end of life samples can be an indicator of sealing issues. Even micro holes in packaging can let in enough oxygen to let the mould grow.
If you tell us a bit more we might be able to help?