Dr Karan Raj issued a warning to anyone who finds a mouldy slice of bread, explaining that the visible mould is not the only thing you need to worry about (Image: Getty Images/iStockphoto) ...

What To Do If You See Mould On Just 1 Slice Of Bread Unfortunately, mould on one slice is essentially mould on every slice (which is also the case for produce, by the way).

This indicates that discarding a single mouldy slice does not render the bread safe for consumption. Dr Raj advises that the entire loaf should be discarded to avoid any health risks.