Hazards and their management during the initial stages of grain storage

Production of

ochratoxin A

***

Critical control point

Commence drying above 18% MC

Immediately, dry grain to 14.5% MC

Measure temperature and moisture content

Investigate changes in moisture content; review practices and grain condition

Introduction of

fungi with potential to cause mycotoxins

**

Clean area and equipment

Inspect for mouldy grains

Dry grain to 14.5% MC; commence drying of grain above 18% MC immediately

Introduction of insects and mites from store fabric

**

Clean area and equipment

Use traps

Consider need for pesticide treatment

Growth and development of insects and mites

*

Cool and dry to recommended levels

Use traps; measure temperature and moisture content

Investigate significant changes in moisture content; review practices and grain condition

Pesticides exceed maximum residue levels due to incorrect admixture

**

Use only approved products in line with manufacturer’s guidance; check condition and calibration of spray equipment

Check records of pesticide application

Review applications and practices

Introduction of hydrocarbons from direct-fired drying systems

**

Use appropriate grade oil; ensure efficient combustion and adequate ventilation

Check before use

Remedy defects

Introduction of rodent faeces during grain cleaning

*

Clean store and proof to prevent ingress of rodents

Check for presence

Check proofing measures; consider control options