Selling and marketing
Muffin Clamshell Packaging: Cost per Muffin and What to Buy
A clear way to pick muffin clamshells, cost them per muffin, and protect your profit.
On this page

What to remember
- Measure your muffin before you order.
- A clamshell that is too big lets the muffin slide and crack.
- Cost per muffin is the number that matters, not cost per case.
- Buy a small test pack before a full case.
When you sell muffins from home, muffin clamshell packaging does more than hold the muffin. It tells the customer the muffin is fresh and protected. It also adds a cost you must build into your price.
What size clamshell fits a standard muffin?
Muffin sizes vary. A standard muffin from a home kitchen often has a top that is wider than the base. Measure the widest part of your muffin, including any domed top. Then look for a clamshell with an inside diameter that matches that measurement. A clamshell that is too small will squash the top. One that is too large will let the muffin slide around and crack.
Single clamshell or a multi pack?
Single muffin clamshells are the most common for market sales. They let a customer grab one muffin without touching the others. If you sell muffins by the half dozen, a 6 count clamshell can lower your cost per muffin. But check the depth. Muffins with tall domed tops may not fit in a multi pack without squashing. Test with your tallest muffin.
How to cost muffin clamshell packaging per muffin
The cost per muffin is the case price divided by the number of clamshells in the case. That sounds simple, but you also need to add the cost of any label or sticker you put on the clamshell. Add that number to your muffin cost to get the true cost before your margin.
Find the case price and count
Look at the total price and the number of clamshells in the case.
Divide to get cost per clamshell
Case price divided by the count gives you the cost of one clamshell.
Add label and any insert
If you use a sticker or a paper liner, add that cost to the clamshell cost.
Add that number to your muffin cost
Your muffin cost plus packaging cost is the true cost before your margin.
For a full picture of what a muffin costs to make, including ingredients, labor, and overhead, see our guide on how much a muffin costs. That guide walks through the batch math so you can plug in your own numbers.
What to check before you buy a case
Before you commit to a full case, check the material and the temperature range. Ask the supplier if the clamshell is meant for warm or cool items. Check the hinge. A flimsy hinge can pop open in a bag or box. Also check the stack height. If you stack clamshells, the bottom ones must not crack. Check that the lid snaps shut and stays shut. A clamshell that pops open will let the muffin fall out. Also check the clarity. A cloudy clamshell hides the muffin. You want the customer to see the top.
Mistakes that cost you money on muffin packaging
The biggest mistake is buying a clamshell that is too large. You pay for plastic you do not need, and the muffin slides and cracks. Another mistake is buying a case before you test one. A clamshell that looks right online may not fit your muffin. A third mistake is forgetting the label. If you write the flavor on a sticker, that sticker is part of your packaging cost. For a similar cost breakdown on another baked good, see cookie packaging cost.
Where to buy and how to store clamshells
You can buy muffin clamshells from restaurant supply stores, online packaging suppliers, and some big box stores. Compare the price per clamshell, not the price per case. A larger case often has a lower unit price, but only if you will use them before they get dusty or crushed. Store clamshells flat in a dry place. Stack them no more than the manufacturer recommends to avoid cracking.
For more on choosing packaging for a home bakery, see our guide on home baking packaging. If you sell mixed boxes, our guide on packaging for baked goods shows how to cost per order. For more selling guides, see our selling topic hub.
How Brevl helps you track packaging costs
Brevl is a shop for home bakers. It costs one flat $20 a month, with no cut of your sales. You can add packaging as an ingredient in your recipes, so every muffin price includes the clamshell. Brevl works on your phone and computer. You can take card payments through your own Stripe or Square account, plus Venmo, Cash App, Zelle, and cash. There is a 14 day free trial.
Try the free bake pricing calculator
Free, no signup.
- How Much Does a Muffin Cost? Batch Cost and Price
- Home Baking Packaging: Cost per Box and Your Margin
- Packaging for Baked Goods: Cost per Order and Margin
Common questions
What size clamshell do I need for a standard muffin?
Measure the widest part of your muffin, including the domed top. Look for a clamshell with an inside diameter that matches your measurement. Buy one test clamshell in two sizes and see which one holds your muffin without crushing or sliding.
Can I put a warm muffin in a clamshell?
Let muffins cool completely before you close the lid. Warm muffins release steam, which can fog the clamshell and make the muffin soggy. If you must package warm, leave the lid open for a few minutes, but that is not practical for a market. Cool first.
How do I calculate the cost per muffin for clamshells?
Divide the case price by the number of clamshells in the case. That gives you the cost per clamshell. Add the cost of any label or sticker. Then add that number to your muffin cost to get the true cost before your margin.
Where can I buy muffin clamshells in small amounts?
Restaurant supply stores and online packaging suppliers often sell small packs. Some big box stores carry them in the baking aisle. Buy a small pack first to test the fit. Then order a larger case once you know the size works for your muffins.
Do I need a label on the clamshell?
A label helps the customer know the flavor and any allergen information. It also makes your muffin look professional. The label is part of your packaging cost, so add it to your per muffin math. A simple sticker with the flavor and your shop name is enough.
General information, not legal or tax advice.