How to Ship a Cake: A Guide to Shipping Cake Jars

Multiple cake jars with silver lids, each labeled with a purple "LOVE JARS Legacy Cakery" sticker, are neatly arranged in rows on a table.

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So, you’ve received a request to ship a cake but have no clue how to ship a cake?

In today’s post, I’ll go over the steps that I took to ship cake jars which you may want to consider with your clients.

First Attempts to Ship a Cake

Shipping cakes is not as hard as you may imagine. It takes a lot of trial and error on your part but it can be done, safely.

This is my third attempt to ship cakes and cupcakes to our domestic customers in the USA. Ohhh yes, my cakes have gone international as far as Africa to be exact.

The first two attempts were not total failures and I can honestly say I have learned so much from both experiences that I can’t say they weren’t a total loss. 

Shipping Cake Jars

1st Birthday in 2009

The first cake was a two-tier small fondant cake that was shipped expressed to Tennessee for a 1st Birthday in 2009. There were minor dents in the cake upon delivery imagine but from a structural standpoint, it was ok.

The second attempt was shipping cupcakes to two different states, Pennsylvania and Maryland in 2015. It was an epic failure, the cupcakes were in shambles and the frosting was everywhere, while the presentation was a hot mess due to mishandling of the box in transport.

I did get great reviews from both clients regarding taste. With cupcakes being so delicate, I am still working on improving the art of shipping cupcakes.

A great alternative might be nice to make it a DIY cupcake package to prevent the frosting from going everywhere, it’s a nice thought but I would still have to do more research and run more tests.


Embrace Failures to Move Forward

These two attempts didn’t discourage me from shipping my cakes but they did make me more cautious about taking orders that require a shipment. 

Proper packing methods and shipping techniques are important to me and my brand as I take pride in making sure every cake can successfully reach its destination in one piece. So it was interesting when I got a request in mid-June for a cake shipment.


The Idea of Shipping Cake Jars

My client posed the idea of shipping cake jars to Chicago for her daughter’s 13th Birthday in December. The idea lingered for a while and we finally got the ball in motion in November. 

Shipping Cake Jars

Plastic Peanut Butter Jars

The crucial component to this order was the containers, I knew plastic jars would be the best options but we also had to find a brand that was also food safe.

We found a suitable option through Michaels.com using their 4oz and 8oz plastic jar containers with screw-on lids. 

Since the containers were small, I thought cupcakes instead of baking a sheet cake would be best. When picking what cakes to bake I decided to go with a frosting that I knew would freeze well and not turn to mush at room temperature.

Buttercream and cream cheese frosting were my two go-to’s for frostings. The client chooses 4 flavors, Red Velvet, Vanilla, Chocolate, and Lemon cake.


I paired the cakes and fillings as follows: 

  • Red velvet with cream cheese frosting 
  • Lemons with lemon curd buttercream 
  • Chocolate with chocolate buttercream 
  • Vanilla with vanilla buttercream 
  • Vanilla with Oreo buttercream 
  • Chocolate with Oreo buttercream 
  • For a total of 12 cake jars

How to prepare the Jars for Cake

Step 1:

  1. I washed and steamed each jar. It took about 24 cupcakes to make 12 cake jars. Once all the jars were made I placed them in the freezer for at least 24 hours. 
  2. To keep the jars cold, I used a Cool Shield Thermal Bubble Mailers or insulated foil bubble bag and placed the jars inside the insulated bubble wrap while in the freezer to help maintain the cold while in transit.
  3. Since the weather is already cold we used it to our advantage and shipped everything 2-day priority rather than overnight. 

Step 2:

  1. Next, I placed the foil-insulated bubble wrap bag in the medium-sized flat-rate shipper and surrounded the package with gel packs to keep it cool while in transit. The box was pretty secure and no additional packing with bubble wrap or peanuts was not necessary in my opinion to prevent movement. 
  2. To give your carrier a heads up, note which side of the box is up and add fragile and perishable to the box as well. Since the jars were plastic and closed tightly. I didn’t see the need to add these signs, to the outside of the shipper. 

Cake Jars Postal Package

Shipping Updated 02/09/2024: We’ve refined our packaging process to enhance the safety and freshness of your shipped cake jars. Below, you’ll find our latest guidelines, including a newly added video demonstration to walk you through the updated packaging technique.

Next, I choose the right USPS Priority Mail Flat Rate® box—medium or large, tailored to the order’s size. 

An image displaying a Priority Mail Flat Rate® Medium Box from the United States Postal Service, with dimensions labeled as 11-1/4"(L) x 8-3/4"(W) x 6"(H). The product page indicates that the box is in stock, available in single, packs of 10 or 25, and is tracked and insured.
USPS Medium Flat Rate Box—ship with ease. Tracked & insured. Available in packs. Image from USPS.

After assembling the box, I insert a customized insulated styrofoam panel kit from TSK Supply, ensuring a snug fit for temperature control.

An open Priority Mail box on a black background, the interior is white and the flaps display the Priority Mail Service print.
Sturdy and reliable TSK Supply shipping box, perfect for mailing your items safely. Image from TSK Supply.

I then seal the panel corners with HVAC multi-purpose foil tape to maintain coolness, a step we find crucial, especially when unexpected delays occur.

A roll of Tape Plus Professional Grade Aluminum Foil Tape, marked as 33% longer than competitors, highlighting its high quality and value pack size.
Extra-long Tape Plus Aluminum Foil Tape is a professional-grade solution for your sealing and repair needs.

Ice packs are placed based on the number of cake jars, which are securely wrapped in bubble pouch bags for added protection. For enhanced safety, we intersperse the cake jars with additional Storopack Clear Cushioning Air Pillows, offering an extra layer of protection.

 Finally, the package is topped off with an insulated styrofoam cover and weighed using our USPS 25lb USB postal & Freight Scale, ready for shipment.

A blue digital postal scale with an open lid, a visible digital display showing "00", and buttons for operation, possibly for weighing letters or small packages.
Accurate and reliable USPS digital postal scale for all your mailing needs. Image from USPS.

For a hands-on demonstration, don’t miss our YouTube Short video showcasing the entire packaging process, providing you with practical tips to ensure your cakes arrive in perfect condition.

Watch how I pack & ship cake jars for safe delivery!

Postal Carrier for Shipping Cake Jars

I decided to go with USPS as the carrier for this shipment and I added insurance to the order.  I shipped on Saturday 12/15 and It was estimated to arrive by Tuesday 12/18.  

It was nerve-racking as I must have checked the tracker all weekend. Thankfully, it arrived on Monday in Chicago at 6:30 am.

The client and I kept in close contact to be sure there were no delivery delays. Just my luck, It arrived before they left for work, unfortunately, the postal office didn’t ring the doorbell but the client was able to spot the package under the porch.

(USPS) United States Postal Service in Brooklyn, NY


Here is a video review by the client


Let’s Go Over the Steps for Shipping Cake Jars:

  1. Clean containers you will be using for cake jars 
  2. Place cake and frosting in jars, alternating each item.
  3. Freeze all jars for at least 24 hours prior to shipping.
  4. Place jars in an insulated foil bubble bags and seal the bag with tape, freeze if possible.
  5. Place the wrapped container in the shipping box. 
  6. Add gel packs to the side and top of the wrapped content inbox.
  7. Seal the shipper with tape securely.
  8. Place stickers on the box noting this side up, perishable and fragile.
  9. Choose a shipping service that can ship and deliver cakes express or within 2 days.
  10. Choose the option for shipping insurance.
  11. Take the labeled box to the desired drop-off shipping location or schedule a pick-up. 
Shipping Cake Jars

Shipping cake jars can be a delicate process, but with the right tools and techniques, you can ensure that your cake jars arrive at their destination in perfect condition.  

By following these steps to shipping cake jars, you’ll learn the best practices for packaging, shipping, and tracking your products.  

Whether you’re shipping cakes for a special occasion or running a cake business, this guide will help you streamline the process and ensure customer satisfaction.  

With a little bit of planning and attention to detail, you can ship your cake jars with confidence and delight your customers every time. 

If you’re curious to sample our delicious cake jars or see how we package them, be sure to check out our cake jar business at Legacy Cakery!  

We’d be more than happy to give you a taste of our sweet treats and show you how we ship them to ensure they arrive in perfect condition.  

Don’t hesitate to stop by and experience our cake jars for yourself! 

I hope this blog provides you with enough details to try and ship your own cakes.

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Happy Caking!!

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I am truly driven by what I create and bring the knowledge of what I have learned throughout the years to help other bakers turn a hobby into a new venture. I hope you find this blog warm and inviting as my goal is to fill it with delicious treats and awesome recipes.

14 thoughts on “How to Ship a Cake: A Guide to Shipping Cake Jars

  1. I am so thankful that you shared this information I have been looking for how to ship and people will not share how to ship cakes in jars.

    1. Hi Darlene,

      So glad this blog was a great resource to you, I do hope your first shipment went well; be sure to add a lot of ice packs in this hot weather. Should you have any additional questions please feel free to email me at bakewithmelissa@gmail.com. Best of luck with shipping your jars. 🙂

      1. Hi, I was wondering what gel ice packs do you use? I’ve looked at different brands and some people either complain about leakage or not lasting cold as long. Due to the delay with mail, I want to make sure that I use the right kind before I attempt to ship

        1. Hi Sammy,

          Thank you for your comment, I use a variety of ice packs and I like the following brands:
          Polar Tech IB6 Ice Brix Leakproof Viscous Gel Refrigerant Poly Pack, 4″ Length x 6″ Width x 3/4″ Thick
          Sonoco Thermosafe PP12 PolarPack Refrigerant Gel Packs (16 oz)
          Nordic Ice NOR1003 Reusable Long-Lasting Gel Pack, 8 oz.
          Freez Pak The Icicle Lunch Bag Cooler 16 oz. Blue
          Although they say refrigerant, they can all be placed in the freezer safely. I try to have them in the freezer for at least a week or more before using them, the longer in the freezer the better.
          Due to so many unforeseen circumstances with packages currently being delayed, I have been adding more ice packs to my orders. Although this cost more I at least want the shipment to arrive chill if not frozen. It’s hard for ice packs to last in this heatwave, I would also suggest using a styrofoam box or additional insulated packaging if you don’t like using styrofoam. You can also have your clients choose express shipping while it does cost more the shipment seems to arrive much faster than priority mail. I hope these examples help and best of luck on your first shipment. Please be sure to come back and tell me how the experience went.

          1. Hi Melissa, thank you so much for your feedback! I have a company I want to order from for insulated liners but they are pretty pricey. I also don’t want to get one that doesn’t keep it cool enough. Any suggestions?

          2. Hi Sammy

            We are running into the same problem, especially during the summer months, if you are not opposed to styrofoam I would say to try styrofoam shippers they hold temp better but they can be costly. We have actually been making our own shippers using Double Reflective Insulation Roll and Multi-Purpose HVAC Foil Tape this can be cost-effective but very time-consuming. You can also make your own styrofoam shippers as well. Unfortunately, you may have to pick which one is more important to you less time or saving money? Also, you can try amazon for insulated shippers but I don’t feel they are as thick as using the double reflective insulated roll. Uline is also a great website as well but pretty costly. I hope this answers your question 🙂

    1. Hi Linda,
      Thank you for your question, I am not sure what true buttercream is but I make American style buttercream for my cake jars. The recipe can be found on my blog, I hope that helps 🙂

  2. What a great idea! I have been trying to think of a way to send a cake to my Dad, but difficult.. this is perfect. Not many people like a whole cake, too many calories, but a piece is perfect!

    1. Hi Melinda,

      So happy you found this post helpful…good luck with shipping cake to your dad, we would love to see pics and how the process went.

    1. Hi Karen

      Unfortunately, our jars were not sealed, you could use a heat gun and shrink wrap sleeves to seal your jars. Or you can also do sealing by induction but that machine can be expensive. I would check out uline.com for more info on both. Happy Caking!!

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