Do Uncrustables Go Bad? How Long Can It Sit Out?

Have you ever heard of Uncrustables? These peanut butter and jelly sandwiches are a popular snack among kids and adults alike, thanks to their convenience and delicious taste. In this post, we’ll explore the history of Uncrustables, their nutritional information, shelf life, storage recommendations, and how to tell if they’ve gone bad.

What are Uncrustables?

Uncrustables are pre-made peanut butter and jelly sandwiches that come frozen and ready to eat. They were invented in the 1990s by the J.M. Smucker Company and have since become a popular snack and lunch item. The sandwiches come with the crusts removed, making them easy to eat and appealing to kids who don’t like crusts.

Uncrustables come in a variety of flavors, including grape jelly, strawberry jelly, honey, and chocolate hazelnut spread. They are made with simple ingredients, such as bread, peanut butter, and jelly. Let’s take a closer look at the ingredients and nutritional information.

Ingredients and Nutritional Information

The ingredients in Uncrustables vary slightly depending on the flavor, but the basic ingredients are bread, peanut butter, and jelly. Here’s a breakdown of the ingredients in a typical grape jelly Uncrustable:

  • Enriched Wheat Flour (Wheat Flour, Niacin, Reduced Iron, Thiamine Mononitrate, Riboflavin, Folic Acid)
  • Peanut Butter (Roasted Peanuts, Sugar, Contains 2% or Less of: Molasses, Fully Hydrogenated Vegetable Oils (Rapeseed and Soybean), Mono and Diglycerides, Salt)
  • Grape Jelly (Grape Juice, High Fructose Corn Syrup, Corn Syrup, Pectin, Citric Acid, Sodium Citrate)
  • Water
  • Sugar
  • Contains 2% or Less of: Yeast, Soybean Oil, Salt, Wheat Gluten, Dough Conditioners (Distilled Monoglycerides, Sodium Stearoyl Lactylate), Calcium Propionate and Sorbic Acid (to Maintain Freshness)
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Uncrustables are relatively low in calories, with each sandwich containing around 200-250 calories. However, they are also high in sugar and carbs, which can be a concern for those watching their sugar and carb intake.

Do Uncrustables Go Bad?

Like any food product, Uncrustables have a shelf life and can go bad if not stored properly. The good news is that Uncrustables have a relatively long shelf life compared to other perishable foods, thanks to their frozen state.

Shelf Life of Uncrustables

According to the J.M. Smucker Company, Uncrustables have a shelf life of up to nine months when stored in the freezer at 0°F or below. This means that you can buy a pack of Uncrustables and keep them in your freezer for up to nine months without worrying about them going bad.

Factors that Affect the Shelf Life of Uncrustables

Several factors can affect the shelf life of Uncrustables, including:

  • Temperature: Uncrustables must be stored in the freezer at 0°F or below to maintain their quality and freshness. Storing them at higher temperatures can cause the sandwiches to thaw and spoil.
  • Humidity: Moisture can cause ice crystals to form on the sandwiches, which can affect their texture and quality.
  • Contamination: Uncrustables can become contaminated with bacteria or other pathogens if they are not handled or stored properly.

How Long Can Uncrustables Sit Out Before Going Bad?

Once you thaw an Uncrustable, you should consume it within 2 hours or discard it. Leaving an Uncrustable at room temperature for too long can cause bacteria to grow and potentially make you sick.

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Can Uncrustables be Stored at Room Temperature?

While it may be tempting to store Uncrustables at room temperature for convenience, it is not recommended. Uncrustables must be stored in the freezer to maintain their quality and safety.

Safety Considerations When Storing Uncrustables

When storing Uncrustables, it is important to follow proper food safety guidelines to prevent contamination and ensure that the sandwiches remain safe to eat. Here are some safety considerations to keep in mind:

  • Store Uncrustables in the freezer at 0°F or below.
  • Thaw Uncrustables in the refrigerator or microwave, not at room temperature.
  • Do not refreeze thawed Uncrustables.
  • Wash your hands before handling Uncrustables to prevent the spread of bacteria.

Best Practices for Storing Uncrustables

Here are some best practices for storing Uncrustables:

  • Store Uncrustables in airtight containers or resealable bags to prevent moisture from affecting their quality.
  • Label containers with the date that you froze the Uncrustables so that you can keep track of their age.
  • Organize your freezer so that you can easily access your Uncrustables without having to dig through other frozen items.

Can Uncrustables be Stored at Room Temperature?

No, Uncrustables cannot be stored at room temperature. They must be stored in the freezer at 0°F or below to maintain their quality and safety.

How to Tell If Uncrustables Have Gone Bad

It is important to know how to tell if Uncrustables have gone bad to prevent foodborne illness. Here are some signs that your Uncrustables may have gone bad:

  • The bread is soggy or stale.
  • The peanut butter or jelly has an off odor or flavor.
  • Ice crystals have formed on the sandwich.
  • The color of the bread or filling has changed.
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How to Check the Freshness of Uncrustables

To check the freshness of your Uncrustables, examine the packaging for any signs of damage, such as tears or holes. If the packaging is intact, thaw an Uncrustable and inspect it for any signs of spoilage, such as those listed above.

What to Do If Uncrustables Have Gone Bad

If you suspect that your Uncrustables have gone bad, do not eat them. Discard them in the trash and clean any surfaces that they may have come into contact with to prevent the spread of bacteria.


Uncrustables are a popular snack food that is enjoyed by people of all ages. They are easy to prepare, convenient to store, and come in a variety of flavors. However, it is important to handle and store Uncrustables properly to prevent spoilage and ensure their safety. Follow the guidelines and best practices outlined in this post to keep your Uncrustables fresh and safe to eat.

If you are concerned about the safety or freshness of your Uncrustables, it is always better to err on the side of caution and discard them. Paying attention to the signs of spoilage and following proper food safety guidelines will help you enjoy your Uncrustables without any health risks.

As a final tip, it is always a good idea to have some fresh fruits and vegetables on hand as a healthy alternative to processed snacks like Uncrustables. Incorporating a variety of foods into your diet will help you maintain a balanced and nutritious diet.

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