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Insulated Bags - Test Results
We have conducted a test to help illustrate how well our Insulated Carrier Bags perform in the real world compared to the next best available solutions.
What happens to the surface temperature of our food during a shopping trip?
We placed a selection of chilled & frozen good into a standard cotton ‘bag for life’. The ambient outside temperature on the day of testing was approximately 21 degrees centigrade.
The chilled & frozen goods placed in the ‘bag for life’ consisted of frozen poultry, chilled vegetables and chilled dairy products.
If we look at the graph above, we can determine the following:
- after 35 minutes the vegetables were entering the danger zone.
- after 65 minutes the frozen poultry also entered the danger zone
- at 80 minutes the dairy products followed.
If we use the above data and translate this into a shopping experience, what would it mean? The average shopping trip will vary from shopping environment to shopping environment (as shown in the graph below). In addition to this, we must also consider the commuting time to and from the store. Therefore, from the moment a shopper puts their first product into the basket, the items are warming to the room's ambient temperature. Thus, when the shopping is over and the drive home is complete, all the perishable products enter the Temperature Danger Zone.
Ambient Temperature Changes
The following graph shows the ambient temperature changes in a standard 2 ply cool bag compared with an Insulated bag from InsulatedBags.Online. You can see that the temperature within our Insulated Bag dropped sharply after closing the bag, and the temperature stayed steady outside the Temperature Danger zone for nearly 4 hours. The competitors 2-Ply bag did not perform in the same way. You can see that the ambient temperature was only marginally lower than the outside temperature, indicating that the thermal insulation was not very good. The other observation was that the closure mechanism did not keep the air locked in the bag – something that our comfort handle takes care of.
We measured the surface temperature of the contents within the bags. After approximately 4 hours, the Surface Temperature of the Vegetable and Poultry within the Insulated Bag had still not entered the Temperature Danger Zone, protecting it from altered taste and microbial growth.
Try them for yourself...