Dry ice is commonly used as refrigerant for shipping frozen food products. If you haven’t used it in the past and are thinking of doing so, it’s important for you to know that it is a dangerous material. Following the right procedure to pack dry ice is the key to using it successfully as your refrigerant, avoiding extra shipping costs, and preventing accidents during transportation.

Here are some tips to shipping frozen food with dry ice.

Dry Ice Basic Information 

Described as solid carbon dioxide, dry ice is considered a dangerous material specifically for air transportation within the country and internationally. It is hazardous as it displaces oxygen when it changes to carbon dioxide gas.

Packaging Requirements for Dry Ice  

When shipping with this type of refrigerant, keep in mind that you must never pack it in an airtight container; otherwise, pressure could build up and lead to rupture. Expect to use multiple materials to pack your frozen food products.

For the outermost packaging, it’s recommended to use a corrugated box. You would also need an insulated container lined with at least a 2-mil plastic liner. Place a layer of dry ice inside the insulated container and your frozen food product over it. Have another layer of dry ice on your frozen goods. Finally, ensure that the insulated container lid is sealed properly.

How Much Dry Ice to Use for Shipping 

The amount of dry ice needed depends on both storage volume and time in transit. For example, for each 24-hour transit period, you can use from 5 to 10 lbs. per 15 quarts of container space. The shipping container is also important. Consider using a 2” thick insulted shipper. Many eco-friendly packaging options are now available as well.

Other Requirements When Shipping Frozen Seafood    

Shipping frozen seafood? You will need additional materials to ensure safe and proper delivery of your products.

Apart from the standard packaging requirements, you’ll need to have a layer of absorbent material placed on the bottom of your insulated container. This will absorb any liquid that may seep through the 2-mil sealed plastic bag during transportation. In addition, the 2-mil plastic bag, which contains your frozen seafood, should follow a fold-over bag closure. Don’t forget to double-bag your frozen food products for additional protection from leaks and seepage.

Labeling Requirements  

The labels on the outer box must meet the following requirements:

  • Your box should have the label “UN 1845.” This shows that the box contains a dangerous material.
  • Make sure to have a Class 9 label for your package, which shows that your box contains dry ice.
  • “Dry Ice” or “Solid Carbon Dioxide” must be written clearly and is noticeable on the outer packaging
  • The recipient’s information must be complete and written properly
  • Your name and address must also be written legibly on the box
  • Don’t forget to have the net weight of dry ice indicated on the box. Use kilograms as the unit of measurement.

Paperwork and Documents  

Don’t forget to fill out a Shipper’s Declaration form, where you will be required to write all the information pertaining to your shipment. This may include your basic information and the recipient’s full name, shipping address, and contact details. That said, you may not need to complete a “Shippers Declaration” form if the only hazardous material in the package is the dry ice.

Shipping Route 

When shipping with dry ice, it’s best to choose the shortest route as possible. You should also consider the day and time that you’re shipping the package. Avoid sending the package out on a Friday or during the weekend. Depending on the logistics company or the courier, your package may not be shipped out immediately and could sit in a warehouse for the weekend. 

Not sure if you’re doing the right thing when shipping with dry ice? Don’t worry. Gray Growth has the experience and resources to ship your frozen food products safely and efficiently. With our frozen food fulfillment services, we could even expedite packing and shipping of your products to ensure it reaches your customers on time.

Ready to grow your frozen food business? Call us at (212) 247-1800 or fill out our contact form to schedule an appointment and learn about our services.