PEAKfresh® USA
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​PEAKfresh is modified atmosphere packaging (MAP) made specifically for fruit and vegetables as well

as cut flowers and plants. With a natural mineral embedded in our products, we are able to modify the
composition of the air surrounding the packaged item in order to extend the initial fresh state of the
product. PEAKfresh has long been used by growers, shippers and retail chains to preserve the
freshness of produce during transit and storage. Most recently, NASA began using PEAKfresh to

extend the life of produce sent to and consumed by the astronauts at the International Space Station. 

   Ripening and associated softening of avocados can be delayed by
   quickly pre-cooling the fruit immediately after harvest and placing
   the fruit in a ethylene free storage environment. This is critical where
   long storage periods are required or where field temperatures are
   high 25°C (77°F). Forced air is generally carried out within 24 to 48 
   hours or sooner after harvest. Hydro cooling of Hass verity is also
   used commercially and the target temperature recommendations
   vary between 5°-15°C (41°- 53°F) and may be influenced by the
   emphasis on whether fruit should be graded with condensation or not. 

   Avocados produce ethylene and the ripening process will accelerate
   if exposed to a buildup of natural ethylene or ambient ethylene. There
   are a number of different cultivars of avocado and all of them vary in
   sensitivity to chill damege. The popular Hass and Fuerte varieties
   have a medium range of sensitivity to chill injury.

​   Recommended Post Harvest Temperatures
   Fuerte variety 7º – 10ºC (44º – 50ºF) 90% humidity
   Hass variety 5º – 12ºC (41º – 53ºF) 90% humidity.

   Packaging Method:
   Properly pre-cooled mature avocados can be stored in bulk in   

   PEAKfresh carton liners for around three weeks prior to packaging
   into trays. This application provides a reasonable level of humidity
   and a degree of protection against excessive ethylene gas damage.
   Mature avocados can also be packed using PEAKfresh vented box
   liners and stored for around six weeks. Ripe fruit stored under
   ambient temperature conditions has a life of around three to six days.
   The optimum ripening temperature for mature fruit is l6ºC (60ºF).
   Storage Temperatures:
   Fuerte variety 7º – 10ºC (44º – 50ºF) 90% humidity
   Hass variety 5º – 12ºC (41º – 53ºF) 90% humidity
   Important Please Read:
   All recommendations for the use of PEAKfresh products are given in

   good faith and based on proven field experience. Packaging method
   storage temperatures and humidity levels, transit and destination
   conditions are factors likely to affect the performance of PEAKfresh
   and no liability for indirect or consequential damage can be accepted.
   We recommend that PEAKfresh products be trialed under local
   conditions before introduction to large scale commercial applications.