Transport
Transport Refrigeration
Refrigeration
Food
Food Safety
Safety and
and Quality
Quality
Transport Refrigeration Food Safety and Quality
◆ What are the issues?
◆ How important is food safety and quality?
◆ Transport refrigeration unit technology improvements to
improve food safety and quality
◆ Additional factors to consider to improve food safety and
quality
◆ Conclusions
Food Safety and Quality
The Issues
◆ Tremendous increase in consumer awareness
regarding food quality and food safety
◆ Many retailers are focusing
on food quality as a key
differentiator
Food Safety and Quality
The Issues
◆ Food Quality is driven by the Consumer
● Product Appearance
● Product Aroma and Flavor
● Product Shelf Life
◆ Food Safety is driven by the Consumer
● Heightened awareness via media
● Foodborne Illness cases are touching home
● Consumers are lobbying their legislators to
“do something!”
Food Safety and Quality
How Important is Food Safety?
◆ Up to 33 million people effected each year
◆ 7,000 people die each year
◆ Cost to the Industry is HUGE !
● Remember Jack-in-the-Box incident
● Remember Swanns Ice Cream incident
● Remember Hudson Foods meat incident
Transport Refrigeration Technology
◆ Higher Capacities
● Maintaining setpoint
● Pulldown (Pre-cooling)
● Temperature recovery
70,000 66,000
60,000 125%
50,000 Improvement 46,000
BTU's
40,000 37,000
31,500
30,000 25,000
23,000
20,000 16,500 15,000
11,000
10,000
0
Early Mid-Range Today
Transport Refrigeration Technology
Technology Enhancements
To Achieve Higher Capacities
And Faster Pulldown
HEAT
HEAT
TRANSFER
TRANSFER
AIR
AIR
MANAGEMENT
MANAGEMENT
COMPRESSION
COMPRESSION
ELECTRONICS
ELECTRONICS
Transport Refrigeration Technology
Increased capacity and
airflow provide faster
temperature recovery
after a door opening
Door switch is recommended
Transport Refrigeration Technology
◆ Higher Capacities
◆ Microprocessor Control Features
● IntelliSet Features
● Easy Of Use Features
● Communications
• Satellite
• Cellular
• RF Yard Monitoring
● Multiple Language Capability
Transport Refrigeration Technology
◆ IntelliSet
● Insures proper setpoint
● Eliminates potential for
driver error
● Improves product quality
LETTUCE
ICE-CREAM
VALLEY PRODUCE
Transport Refrigeration Technology
Ease Of Use Features
Remote Control Panel Option
Transport Refrigeration Technology
◆ Communications
● Satellite
● Cellular
● Radio Frequency (RF)
Transport Refrigeration Technology
◆ Advantages of remote communication
● Provides unit location
● Verifies proper setpoint, unit operation, etc.
● Provides temperature record
● Allows remote control of unit
● Product quality
Transport Refrigeration Technology
◆ Multi-language Capability
● Insures proper unit settings
● Eliminates driver error
● Improves product quality
IDIOMAS / LANGUAGE: ESPANOL
TEMP AIRE DE RETORNO: 35.0 F
FUNCTIONAMIENTO OK
Transport Refrigeration Technology
◆ Higher Capacities
◆ Microprocessor Control Features
◆ Air Management
● Improved Fan Design
● Air Volume
● Air Velocity
● Discharge Configurations
Transport Refrigeration Technology
◆ Improved fan design
● Increased airflow Air distribution nozzle
● Increased air velocity
Centrifugal fan
● Center discharge
Transport Refrigeration Technology
◆ Benefits of improved air management
● Tighter temperature control
● Improved product quality
● Less food waste
● Extended shelf life
Transport Refrigeration Technology
Temperature Control & Shelf Life?
◆ How does temperature control affect product shelf life?
➨ Chilled pork: Optimum 29 Degrees F
➨ Rule of thumb: 2 Degree Increase = 10% decrease in shelf life
➨ 29 F - 100% Life Attainable
➨ 32 F - 70%
➨ 34 F - 60%
➨ 36 F - 50%
➨ 41 F - 30%
Transport Refrigeration Technology
◆ Higher Capacities
◆ Microprocessor Control Features
◆ Air Management
◆ Data Recording
● Electronic recorders
● Printers
Transport Refrigeration Technology
◆ Data Recording
● Verifies proper setpoint, unit operation, etc.
● Provides temperature record
• At loading
• During transportation
• At delivery
● Maintains record for
up to 2 years
Transport Refrigeration Technology
◆ Printers
● Immediate proof of product protection
● Graphic or tabular printouts
● Easy to use
● Handheld or trailer mounted
● Thermal technology
● Fast / High quality printouts
Transport Refrigeration Technology
◆ Higher Capacities
◆ Microprocessor Control Features
◆ Air Management
◆ Data Recording +65 °F
◆ Multi-temp Units
● Various Host Units
● Remote Evaporators
• 1/2 Width
• Full Width -20 °F
• Single or Dual Discharge
Transport Refrigeration Technology
◆ Multi-temp Products
● High performance
● Independent compartment control
● Superior product quality
Transport Refrigeration Technology
◆ Remote evaporators
● High airflow
● Flexibility
● Dual discharge capability
● Superior product quality
Where Are We Today?
◆ Higher Capacities
◆ Microprocessor Control Features
◆ Air Management
◆ Data Recording
◆ Multi-temp Units
◆ Superior Product Protection!
Additional Factors To Consider
◆ Refrigeration Unit Selection
◆ Trailers
◆ Chutes
◆ Bulkheads
◆ Loading Practices
◆ Data Recorders
Refrigeration Unit Selection
◆ Know the application before selecting the
refrigeration unit
◆ Setpoint, door openings per day, products to
be transported, transit time, operating area,
trailer specifications, etc.
◆ Perform a load calculation to size unit
properly for each application
Refrigeration Unit Selection
◆ Consider the Following:
● Capacity Requirements
● Air Management Requirements
● Controller Features
● Multi-temp or Single-temp
● Communication Capabilities
Insulated Trailers
◆ Heat Transmission Rate
● Insulation Type / Construction
● Insulation Thickness
● Door Type
Insulated Trailers
◆ Heat Transmission Rate
◆ Air Leakage
Insulated Trailers
◆ Heat Transmission Rate
◆ Air Leakage
◆ Floor Type
Trailer Duct Floor
Deep Channel Floors
Air Chutes
◆ Recommended by Refrigerated
Transportation Foundation
◆ Proper Installation
Required
Air Chutes
Bulkheads
◆ Types
● Solid
● Lattice
◆ Proper Design
● Sealed
● Adequate Airflow
● Bulkhead Protection
Bulkheads
Loading Practices
◆ Inspect Equipment
● Trailer Damage
● Air Chutes
● Debris
Inspect Equipment - Damage
Inspect Equipment - Chutes
Inspect Equipment - Chutes
Inspect Equipment - Debris
Loading Practices
◆ Inspect Equipment
◆ Pre-Cool Trailer
● Check Setpoint
● Check Operating Mode
Pre-Cool Trailers
Pre-Cool Trailers
Pre-cool or pulldown to temperature prior to loading
Removes the heat
that has entered the
body from the sun
Loading Practices
◆ Inspect Equipment
◆ Pre-Cool Trailer
◆ Load Product at Temperature
Loading Temperatures
Loading Temperatures
Loading Temperatures
Loading Practices
◆ Inspect Equipment
◆ Pre-Cool Trailer
◆ Load Product at Temperature
◆ Insure Proper Airflow
Loading Practices
Airflow - Top
Top Airflow
Top Airflow
Top Airflow
Loading Practices
Airflow - Side Walls
Side Airflow
Side Airflow
Side Airflow
Side Airflow
Side Airflow
Loading Practices
Airflow - Rear Doors
Rear Airflow
Rear Airflow
Rear Airflow
Loading Practices
Airflow - Return
Return Airflow
Return Airflow
Return Airflow
Monitor And Record Temperatures
◆ Use Data Recording Devices
● Verifies proper setpoint, unit operation, etc.
● Provides temperature record
• At loading
• During transportation
• At delivery
● Maintains record for
up to 2 years
Summary: Additional Factors To Consider
◆ Use Proper Equipment
● Configuration
● Condition
◆ Pre-Cool Trailer
◆ Load Product at Temperature
◆ Allow for Proper Airflow
◆ Properly Monitor and Record Temperature
Conclusions
◆ Understand food safety issues
◆ Use technology available to improve product protection
◆ Take all factors into consideration
● Refrigeration unit selection
● Trailer specifications
● Air delivery systems
● Proper loading procedures
● Temperature control
● Record keeping
◆ Become an “Industry Expert”
on the issues
◆ Educate customers
Food Safety and Quality
