Food Preservation

How Long Does Mochi Last? Does Mochi Go Bad?

In this article, you will know the answer to the query “How Long Does Mochi Last? Does Mochi Go Bad?“.

You might not be familiar with mochi if you haven’t heard of it before, but it’s a sweet rice cake that’s chewy and sticky.

Japan is the origin of this famous dish, but it has now spread to all corners of the globe.

Even though mochi isn’t always easy to find in American grocery stores, you can make your own at home.

Keeping mochi fresh and long-lasting is key to enjoying this delicious treat throughout the year.

What is Mochi?

A delicious Japanese rice cake that dates back to the 8th century, mochi is a staple of Japanese cuisine.

It is made from glutinous rice flour and stuffed with sweet or savory fillings, such as azuki beans.

There are many types of mochi, including round balls called dumplings and flat rectangles called sticky cakes.

While mochi is often served at room temperature with various toppings and flavors, it can also be eaten cold in the summer.

Mochi cakes are made by pounding rice into a paste and shaping them on a wooden board into various shapes, including round balls, flat square sheets, cones (with holes), etc.

Each ball/sheet/cone shape is then individually wrapped before being steamed again to become soft before consumption.

How to Store Mochi?

In traditional Japanese culture, mochi is a rice cake made from glutinous rice.

Because it comes out beautifully when steamed or grilled, it has become a popular food in many Japanese celebrations, weddings, and holidays.

If you’ve ever ended up with leftover mochi after a party, you might have been wondering what to do with it.

You can extend the life of your treats by up to three days per layer of wrap if you refrigerate them darkly.

It is also possible to freeze mochi for later use.

You should wrap it tightly in layers of aluminum foil, then place it in an airtight plastic bag or container.

As long as you store the product properly, the freezing process won’t affect its flavor.

Whether you heat leftover mochi with water or simply eat them cold, make sure they are fully defrosted before heating.

How Long Does Mochi Last?

It takes about 24 hours for homemade mochi to go bad.

When it reaches that point, it will begin to mold and harden so much that it will no longer be edible.

When refrigerated, homemade mochi can last up to a week, but keep in mind that it will dry out over time.

In the course of two weeks following the expiration date of your freezer, frozen mochi can retain its texture and flavor.

Mochi can be preserved by freezing while still giving everyone a chance to eat it first.

Buying pre-made mochi from a store may be the best option for you.

Because they’re packaged individually with foil or plastic wrap, these usually last longer than homemade varieties.

Most grocery stores also carry ready-to-eat rice cakes that are specifically designed to keep fresh for a long time.

A moisture-proof material like paperboard or plastic is usually used to wrap them airtight.

There are also mochi brands that are shelf-stable or long-lasting for up to a year if unopened in the refrigerator, so you can keep them on hand for friends and family.

How to Tell if Mochi is Bad?

Which is the best way to determine whether your mochi has expired? Are there any telltale signs that it may have gone bad?

The best way to spot spoilage on Japanese rice cakes (mochi) is to look for expiration dates on the packets or boxes.

If there aren’t any written directly on the product label, then you may want to check its original packaging.

If this is not possible, find out the date and year each cake was packaged – sometimes “Best before” dates will be stamped on their surface to indicate how long they’ll keep.

You can also tell by looking at the texture of the mochi.

When you bite into slightly dried and hardened pieces, they will crack, meaning they are most likely past their prime.

The mochi should be soft when biting into it, otherwise, it has been sitting around for too long.

After sitting for a long time, mochi will begin to turn dark and sour.

In this case, you should probably toss them since they are no longer edible.

Has your mochi turned slimy and gooey? It’s time to throw away this batch if that’s the case.

How should you store mochi to keep it fresh? Keep the sweet dessert refrigerated before serving so that bacteria don’t have time to grow on top.


As a result, mochi is able to last a few hours at room temperature.

Keeping mochi in the freezer will allow you to enjoy it for up to two weeks.

The texture may change slightly over time, but it will remain delicious.

Thank you for reading this post. We hope it was informative for you.

Are there any questions you would like to ask? If you have any questions, comment below and we’ll get back to you as soon as we can.

How Long Does Mochi Last? Does Mochi Go Bad? (Recipe)


15 minutes


15 minutes


30 minutes


  • Mochi
  • Air-tight containers or Ziplock bags
  • Labels and markers


  • Read the guide thoroughly to learn how long it lasts.
  • Label your container with the content and date and keep track of how much you’re using!
  • Make sure to store in an airtight container in a cool, dark place (pantry or fridge).

Ayub Khan

Ayub Khan is an accomplished culinary author with a passion for cooking and 6 years of experience. His creative ideas and valuable tips inspire readers to explore new flavors and take their culinary skills to the next level.

Rehmat Dietitian

Rehmat is a certified food dietitian having experience of 10 years in reviewing and practicing on foods different aspects.

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