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How to Decode the Tupperware Symbols on Every Product

If you’ve ever wondered what those little symbols on the bottom of your Tupperware or food storage containers mean, you’re not alone! Many people are unaware of the important information these symbols provide. The next time you reach for a plastic container, take a moment to understand the symbols on it—they’re there for a reason.

Tupperware and other food storage containers often come with a set of symbols that can tell you how to care for the product, what materials it’s made from, and whether it’s safe for specific uses. Decoding these symbols can help you make informed decisions about how to store your food and ensure that your containers last longer. Here’s a breakdown of the common Tupperware symbols and what they mean.

Why Are There Symbols on Tupperware?

The symbols on Tupperware containers serve as a guide to help consumers properly care for their products. These symbols can convey important information about the container’s material, temperature limits, and cleaning methods. Knowing what these symbols mean can also help you avoid accidentally damaging your containers or using them inappropriately.

Each symbol provides information about how the container should be used, whether it’s dishwasher safe, microwave safe, freezer-friendly, or safe for food storage. Understanding these symbols ensures you’re using your Tupperware products in the safest and most effective way possible.

The Most Common Tupperware Symbols and Their Meanings

Tupperware symbols can vary slightly depending on the manufacturer, but here are the most common symbols you’ll encounter on food storage containers:

1. Microwave Safe Symbol (Microwave with Waves)

Symbol: A microwave with three wavy lines inside it.

Meaning: This symbol indicates that the container is safe to use in the microwave. Containers with this symbol are designed to withstand the heat of the microwave without warping or leaching harmful chemicals into your food. However, it’s important to check whether the lid is also microwave-safe, as some lids may not be suitable for microwave use.

Tip: Avoid using containers that aren’t marked microwave-safe in the microwave, as this can lead to warping, cracking, or even releasing harmful substances into your food.

2. Freezer Safe Symbol (Snowflake)

Symbol: A snowflake.

Meaning: The snowflake symbol means the container can safely be used in the freezer without cracking or becoming brittle. Tupperware that’s freezer-safe is designed to handle low temperatures and can store your food for extended periods without risk of damage.

Tip: Make sure you leave some space at the top of the container when freezing liquids or foods that expand as they freeze. This will prevent the container from cracking or breaking.

3. Dishwasher Safe Symbol (Dishwasher)

Symbol: A square with a plate and a fork or spoon, accompanied by water droplets or lines.

Meaning: The dishwasher-safe symbol means the container can be safely cleaned in the dishwasher. Containers with this symbol are made from materials that can withstand the high temperatures and strong detergents in the dishwasher.

Tip: Even if a container is dishwasher-safe, you should still check the manufacturer’s instructions to determine whether it’s safe to place it on the top or bottom rack. Some containers may be too delicate for the bottom rack.

4. Hand Wash Only Symbol (Wavy Lines)

Symbol: A bowl or container with wavy lines underneath, often combined with a “no dishwasher” warning.

Meaning: This symbol indicates that the Tupperware is not dishwasher-safe and should only be washed by hand. Typically, this is the case with more delicate materials or containers with intricate designs or seals.

Tip: If you see this symbol, be sure to wash your Tupperware by hand with warm soapy water to avoid damaging it.

5. BPA-Free Symbol (No Chemical Structure)

Symbol: A symbol with “BPA-free” or a “no chemical structure” icon.

Meaning: This symbol indicates that the container is free from Bisphenol A (BPA), a chemical that has been linked to health risks. Many people prefer BPA-free containers to store their food, as BPA can leach into food, especially when exposed to heat.

Tip: If you’re concerned about BPA, always check for the BPA-free symbol when purchasing Tupperware or any food storage containers.

6. Not Safe for Oven Use Symbol (Oven with a Line Through It)

Symbol: An oven with a line crossing through it.

Meaning: This symbol indicates that the container is not safe for oven use. The material of the container cannot withstand the high temperatures of an oven, and using it there can cause the container to melt, warp, or catch fire.

Tip: Always check the symbol before placing any container