How to clean:Should preferably be observed for obvious signs of infestation; worms may develop when stored in warm areas.
The presence of infestation is much more prevalent during the warm summer months. Recently, we have found occasional infestation of the black flour beetle in flour. As such, we advise that the surface of flour be checked using sifter. Insects will be clearly visible and moving across the surface.
Additionally, infestation may occur to yoshon flour stored through the winter. Store these items in a cool, dry place or, when possible, refrigerated.
When properly stored, it is unusual to find worms in these products especially those made in Canada and the USA. If worms are found, the entire box or bag must be carefully sifted or checked on a white paper plate before use.