Polar Freeze-Retention Times
Ice Cream Test
Product: PB 27
Test Specifications:
Interior Capacity Size: 27 Cubic Feet
Dry Ise Use: None
Product Used: Ice Cream
Capacity: Full
Container put on non-insulated, non-refrigerated trailer in hot sun at 11:00 am, ambient
temperature 880 Fahrenheit. Note: Unit pre-colled in -180 freezer.
|
Time
|
Elasped
Time
|
Ambient
Temperature
|
Temperature
Interior
Container
|
Ice Cream
Product
Composition
|
|
11:00 am
|
Start
|
88o
|
-18o
|
Hard
|
|
5:00 pm
|
6 hours
|
84o
|
-8o
|
Hard
|
|
5:45 pm
|
6 hrs. 45 min.
|
85o
|
-8o
|
Hard
|
|
6:30 pm
|
7 hrs. 30 min.
|
80o
|
-5o
|
Firm
|
|
8:00 pm
|
9 hours
|
70o
|
-4o
|
Firm
|
|
9:00 pm
|
10 hours
|
70o
|
-4o
|
Firm
|
|
10:00 pm
|
11 hours
|
70o
|
-4o
|
Firm
|
|
11:00 pm
|
12 hours
|
70o
|
-2o
|
Firm
|
|
12:00 am
|
13 hours
|
68o
|
0o
|
Firm
|
Upright Container Testing
Product: PB 55
Frozen Foods Used for Test
CO2 bunker charged with approximately 80 lbs. of snow
Probe 1: Product temperature at bottom
Probe 2: Product temperature at 36"
Probe 3: Product temperature at 48"
Probe 4: Product temperature at top air space
|
Elasped
Time
|
Probe
#
|
Product
Temperature (oF)
|
|
6 hours
|
1
|
-31.9o
|
|
|
2
|
-5o
|
|
|
3
|
-23.7o
|
|
|
4
|
-34.1o
|
|
12 hours
|
1
|
-16.1o
|
|
|
2
|
-3.1o
|
|
|
3
|
-12.9o
|
|
|
4
|
-12.9o
|
|
18 hours
|
1
|
-3.1o
|
|
|
2
|
-4.8o
|
|
|
3
|
-0.4o
|
|
|
4
|
8.4o
|
|
24 hours
|
1
|
8.0o
|
|
|
2
|
-1.2o
|
|
|
3
|
17.7o
|
|
|
4
|
30.9o
|
Estimated Frozen Times
|
Product:
PB 27
|
Non-Frozen Container
No Dry Ice
No Cooled Truck
|
Non-Frozen Container
Dry ice
No Cooled Truck
|
Non-Frozen Container
No Dry Ice
Cooled Truck
|
|
Ice Cream
|
1-2 hours
|
4-6 hours
|
6-8 hours
|
|
Frozen Food
|
2-4 hours
|
4-6 hours
|
6-8 hours
|
|
Product:
PB 27
|
Frozen Container
No Dry Ice
No Cooled Truck
|
Frozen Container
Dry ice
No Cooled Truck
|
Frozen Container
No Dry Ice
Cooled Truck
|
|
Ice Cream
|
2-4 hours
|
8-10 hours
|
12-24 hours
|
|
Frozen Food
|
4-6 hours
|
10-12 hours
|
12-24 hours
|