BIBLIOTECA HORTICULTURA

BIBLIOTECA HORTICULTURA

Vacuum Cooling prevents Botrytis in packed flowers by eliminating the excess of moisture

Vacuum Cooling prevents Botrytis in packed flowers by eliminating the excess of moisture

Weber equipment highly appreciated by growers, packers and dealers of ornamentals

Vacuum cooling for flowers and cold chain management allows a fast and uniform cooling (15 to 30 min); Weber Cooling equipment guarantees minimal energy costs & space requirements. Vacuum cooling also leads to the maximization of vase life and quality preservation, minimization of Botrytis risk and quality reject, and optimization of storage & shipping flexibility.
 

Reducing the risk of Botrytis
With many flowers, there is a risk of botrytis due to the collection of moisture within and on the sleeve. As vacuum cooling is based on moisture evaporation & extraction, it will remove (all) moisture from the inside of the sleeve, and from the flower surface, thus reducing or eliminating the Botrytis risk. It is important to tune the control system in the correct way, otherwise it will not work.

One of the leading importers in the UK for fresh flowers (mainly roses) from Columbia has tested Weber vacuum coolers extensively, and made a full report.

Conclusions are that vacuum cooling reduces moisture in packed flowers. Therefore, there is hardly any Botrytis thanks to the dryer conditions in the sleeve.

“Vacuum cooling is a quick, effective approach to reducing temperature

… removing condensation from sleeves has positive effects on botrytis reduction

… time (along with pressure) is a critical factor in the cooling process

… vacuum cooling at the arrival site does not have any detrimental effect on vase performance, but is positive for the reduction of rejects & complaints”.

 

Sources
Case prevention of Botrytis in packed flowers

Cold chain management for flowers with vacuum cooling