Frequently Asked Questions and Help Center

How Can I Keep My PlanetBox Food Cold, For How Long?

Last Updated: Nov 30, 2016 11:38AM PST

Our boxes are not insulated however, all our bags are insulated and will fit the PlanetBox ColdKit which helps to keep foods cold.  

If you want your foods to stay cold until lunchtime, the best thing to do is to pack the refrigerated foods the night before and chill the entire lunchbox, without the magnets on it, overnight in the refrigerator.  In the morning add the dry foods, the ColdKit,
wipe any condensation from the top of the box and apply the magnets, and store the box inside the Carry Bag and you are set to go.  

Our ColdKits are not included with our lunchboxes but they can be purchased separately.  Here is a link to them -

http://www.planetbox.com/products/coldkit-1?variant=20535653697

The length of time that the box will stay cold is dependent on many factors - ie, what temperature it started out at, what temp it is being stored at, what type of ice pack you use, etc.  

We have tested our ColdKit in combination with the PlanetBox lunchbox and Carry Bag on a typical school day. By pre-cooling the PlanetBox in the refrigerator overnight and then placing it inside the Carry Bag with the ColdKit in the morning, a substantial lowering of temperature can be maintained. The exact temperature maintained throughout the day will depend on the ambient temperature the PlanetBox is stored in for the morning, exposure to direct sunlight or shade, and the number of times the lunchbox is opened throughout the morning.

In our tests, a consistent 40° F temperature was maintained inside the lunchbox while the exterior temperature was 75° F through the morning hours. 40° F is a safe temperature to store perishable foods, according to the USDA. If a significantly higher exterior (ambient) temperature is anticipated, then we would suggest using two cold packs – one placed below the lunchbox and one placed above – to sandwich the PlanetBox in a blanket of cold throughout the morning. As reminder, the ColdKit can only maintain the cool for as long as it remains frozen. To truly keep perishable foods from spoiling for long periods, store them in a refrigerator.

For more information on our lunch packing systems and what to expect, check out our video: https://www.youtube.com/watch?v=mhKDMbZq918

Contact Us

  • Email Us
  • For General Questions and Help Ordering Our Products:
    Please feel free to email us at info@planetbox.com and we will reply just as soon as we can. If you would rather call our call center for assistance, you can reach us at (844) 752-6388 (Planet8)

    For Quality Control Issues (if you are having an issue with your PlanetBox product):
    Please email us at info@planetbox.com. Please describe your question or concern, include any pictures you can take to demonstrate the issue, and our quality control team with get back to you shortly. Email is the BEST way to contact us about quality issues as we can find your order by your email address and quickly resolve your issue.

    For Media Inquires:
    Please email us at info@planetbox.com with "media inquiry" in the subject line and the appropriate person will get back to you shortly.

    For Wholesale Inquires:
    Please email us at wholesale@planetbox.com

5518a9901bdbcaeff9b4fb4b6c32d9cd@planetbox.desk-mail.com
http://assets2.desk.com/
false
desk
Loading
seconds ago
a minute ago
minutes ago
an hour ago
hours ago
a day ago
days ago
about
false
Invalid characters found
/customer/en/portal/articles/autocomplete