July 2022 - 12

COLD STORAGE & CONTROLLED ATMOSPHERE
STORAGE
CONTINUED FROM PAGE 10
" Some storages that I've worked with
in Washington for the past four years
started using SafePod on only their
organic rooms, because they needed a
way to prevent scald and extend storage
life without the use of chemicals that
are not organic certified, " Madison
Schaefer said.
" Since then, they've gradually
extended the use of SafePod to many
conventional varieties as well, because
the organic fruit was coming out of
storage in better condition than their
conventional fruit, " she said.
What's behind door No. 2 ...
and doors 3-40?
Large-scale apple growers who store
and then ship hundreds of thousands
of bushels a year are constantly using
educated guesses on which CA rooms
to open next. When a shipper has up
to 40 CA rooms to choose from, which
one should be opened next?
" Following and comparing the
respiration rate of each room is very
telling of how sensitive apples are
to changes in storage atmosphere, "
she said. " Respiration rate defines
storability and can tell operators which
Each apple variety has its own respiration rate, and
controlled-atmosphere rooms can be used to give the
fruit the optimal levels of oxygen to prolong shelf life
and guard against certain disorders.
room needs to be packed next.
" Before, operators would use lot
history, harvest date, and maturity
going into storage to plan room opening
order, " Madison Schaefer said. " Now,
they appreciate having SafePod as an
extra tool and clear view into the room
to confirm the planned order is optimal.
Or, the respiration data will inform
them of a problematic lot or room they
otherwise would have held longer in
storage, sometimes saving them up to 25
times the investment of the SafePod in
the room. "
During the hustle and bustle of
harvest, growers are trying to get fruit
into storage as soon as possible, and
they aim to get fruit from the same
Another Storage Control Systems product, LabPod, allows researchers
and growers to manipulate oxygen, nitrogen and CO2 levels, giving
them the ability to research optimal levels for different varieties without
needing a CA room of fruit.
block of trees into storage together.
Grouping them together leads to a
better chance of estimating when they
should be released from CA.
A new variety, a new
respiration rate
Different varieties need different
levels of oxygen in storage, and
stakeholders - growers, university
horticulture departments as well as
SCS - want to ensure varieties brought
to market can hold up. Madison
Schaefer said researchers are using
the SafePods on the newer varieties.
The company has been working with
SnapDragon growers in New York, and
Cosmic Crisp growers in Washington.
O
Some companies are using another
SCS product, LabPod, which has
hookups for oxygen, nitrogen and CO2
(if desired) so they can manipulate
the environment, allowing for
experimentation without putting an
entire controlled-atmosphere room
at risk.
Madison Schaefer recently talked
with a pear grower in Hood River,
Ore., who plans to learn about the low
oxygen limit and respiration rate of a
new variety with a SafePod unit. Other
groups in the U.S. and elsewhere are
using the system to collect respiration
data on potatoes, cherries, avocados,
mangos, kiwi, and cherry tomatoes,
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12 | FruitGrowersNews.com
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July 2022

Table of Contents for the Digital Edition of July 2022
