Good practice during post harvest treatment

• Treat fruit for 60 seconds maximum.
• Fruit should not be treated above 21^oC or below 100C (optimum 16^oC).
• Top-up using solution diluted to the correct concentration.
• Change solution every 2 or 3 days or when excessively dirty. DPA manufacturers suggest refilling with fresh solution after every 100 bins.  This may be fewer than are treated in practice, particularly where dip tanks are used.