If you’ve ever turned a Tupperware cup or container upside down and noticed a cluster of tiny symbols — maybe a fork and cup, a snowflake, or a few wavy lines — you’ve probably wondered what those little markings stand for. Are they random decorations? A hidden code? In fact, they serve a very practical purpose. These symbols are there to guide you on how to safely use, clean, store, and recycle your container. Understanding them can help you get the most out of your Tupperware while keeping your food and kitchen safe.

Here’s a complete breakdown of what each one means — and why it’s worth paying attention to those tiny icons.

1. The Fork and Cup — Food Safe

Among all the marks you’ll find on Tupperware products, the fork and cup icon is one of the most important. It’s not decorative — it’s the international symbol for food safety. When you see this, it means that the material used to make that item has been tested and approved for direct contact with food. In other words, it won’t release harmful chemicals or substances into your meals or beverages.

So, if your container has this mark, it’s perfectly safe for storing or serving food and drinks. You’ll also find the same symbol on other household kitchenware like reusable plastic plates, cups, utensils, and jars. However, if an item doesn’t feature this fork-and-cup mark, it may not be designed for direct food contact — so it’s best to err on the side of caution and avoid using it for that purpose.