What Does The L Symbol Mean On The Instant Pot? – Discovering the Hidden Features

The Instant Pot – the multi-cooker that has revolutionized home cooking, earning its rightful place in kitchens across the globe. From slow-cooking to pressure-cooking, steaming to sautéing, this wonder device does it all.

However, as with any sophisticated kitchen appliance, it comes with its share of symbols, buttons, and digital readouts, which can be a little overwhelming for new users. One particular symbol that often raises eyebrows is the mysterious “L” that sometimes appears on the display. So, what exactly does this “L” symbol mean on your Instant Pot? Let’s demystify it.

Unraveling the L Mystery

instant pot

The “L” on the Instant Pot display typically appears after a cooking program ends. It signifies the beginning of the ‘Keep Warm’ function, a feature that maintains your food at a safe and appetizing temperature until you’re ready to serve it. The “L” is followed by a timer that begins to count up, providing you with the duration your meal has been kept warm post-cooking.

Don’t confuse this with the initial countdown timer, which indicates the cooking time. Once the cooking cycle is complete, the cooker beeps, and the display transitions from the cooking time to the ‘Keep Warm’ mode, indicated by the “L” symbol.

Why the Keep Warm Function Matters

Having understood the “L” symbol, let’s delve into the importance of the ‘Keep Warm’ function. Imagine this scenario: you’re cooking a hearty stew in your Instant Pot, but your family isn’t ready to eat yet. If the stew cools down, it won’t taste as delicious, and reheating it could change the texture and flavor. This is where the ‘Keep Warm’ feature comes in handy.

The ‘Keep Warm’ function ensures that your food stays at a temperature between 145-172°F (63-78°C), which is within the safe temperature range defined by the U.S. Food Safety and Inspection Service. This means your food will not only stay deliciously warm, but it will also be safe to eat, even if it’s been sitting in the pot for a while.

How to Use the Keep Warm Function


The ‘Keep Warm’ function automatically activates after any cooking program ends unless you’ve manually turned it off. Here’s a step-by-step guide on how to use it:

  1. Select your cooking program: Choose the cooking program for your dish, whether it’s pressure cooking, slow cooking, or any other option on your Instant Pot.
  2. Set your cooking time: After selecting your program, adjust your cooking time. Once this is set, the Instant Pot will begin its cooking process.
  3. Wait for the cycle to end: When the cooking time ends, the Instant Pot will beep to indicate that the cooking process is complete.
  4. Observe the “L”: After the beep, the display will switch to the ‘Keep Warm’ mode. You’ll see the “L” symbol, followed by a timer counting up.
  5. Serve your meal: You can open the lid and serve your meal whenever you’re ready. The ‘Keep Warm’ function can keep your food warm for up to 10 hours, giving you plenty of flexibility.

Tips and Tricks for the Keep Warm Function

Keep Warm Function

Preventing Overcooking

While the ‘Keep Warm’ function is handy, remember that your food continues to cook, albeit at a much lower temperature. If your dish is delicate or prone to overcooking, it’s best to manually turn off the ‘Keep Warm’ function once the cooking cycle is complete. You can do this by pressing the ‘Keep Warm/Cancel’ button.

Quick Release vs. Natural Release

When your cooking time is over, there are two ways to release the pressure: a quick release or a natural release. If your recipe calls for a natural release, the ‘Keep Warm’ function can start while the pot is still pressurized. This might result in a little more cooking than expected. Keep this in mind and adjust your cooking times accordingly.

Reheating Food

You can also use the ‘Keep Warm’ function to reheat your food. Simply place your food in the Instant Pot, close the lid, and press the ‘Keep Warm/Cancel’ button. The Instant Pot will gradually warm up your food without overcooking it.

The Role of the L Function in Delayed Cooking

How to use Delay Start on Instant pot

The Instant Pot is equipped with a ‘Delay Start’ function, which allows you to delay the start of cooking up to 24 hours. This is an excellent feature if you want to come home to a freshly cooked meal. Once the cooking process is finished, the Instant Pot will automatically switch to the ‘Keep Warm’ mode, indicated by the “L” symbol on the display. This ensures your meal is warm and ready to serve, no matter when you get home.

Safety Precautions While Using the Keep Warm Function

While the ‘Keep Warm’ function is a blessing for our busy lives, it’s essential to use it safely:

Avoiding Foodborne Illnesses

The ‘Keep Warm’ function maintains your food within the safe temperature range, which helps prevent the growth of bacteria that could lead to foodborne illnesses. However, it’s not advisable to leave your food on the ‘Keep Warm’ function for extended periods. The USDA recommends consuming the food within two hours of cooking.

Using the Right Amount of Liquid

If you’re using the ‘Keep Warm’ function for a long time, ensure there’s enough liquid in your recipe to prevent the food from drying out or burning.

Handling the Appliance with Care

As with any heated appliance, always handle your Instant Pot with care, especially when the ‘Keep Warm’ function is active. Use oven mitts to open the lid and serve the food.

Understanding the Keep Warm Function Across Different Models

It’s important to note that the functionality and features of the Instant Pot can vary depending on the model. For instance, the Duo series, one of the most popular, comes with the automatic ‘Keep Warm’ function. However, the Lux series, another favorite, requires you to manually switch on the ‘Keep Warm’ function after the cooking cycle. So, the appearance of the “L” symbol and the way it functions can be slightly different based on the specific model you have. Always refer to your model’s user guide for the most accurate information.

Using the L Function for Different Types of Recipes


The ‘Keep Warm’ function with its “L” symbol indicator is not just useful for main courses or stews, but it can be a game changer for various types of dishes:


Keeping soups warm without continuing to cook them can be tricky. The ‘Keep Warm’ function allows you to maintain the perfect serving temperature without overcooking the ingredients.

Rice and Grains

If you’ve cooked rice or grains, the ‘Keep Warm’ function can keep them fluffy and ready to serve without drying out or sticking to the pot.

Cakes and Desserts

Yes, you can make cakes and desserts in your Instant Pot! After cooking, the ‘Keep Warm’ function can help maintain the right temperature for your sweet treats without drying them out.

Exploring the L Function’s Impact on Energy Consumption

Instant Pot Power Consumption

One of the many reasons why the Instant Pot is celebrated is its energy efficiency. But how does the ‘Keep Warm’ function fare in this aspect? Quite well, in fact. This function uses very little energy to maintain the temperature, especially when compared to reheating food or keeping your oven on a low setting for extended periods. So, while keeping your food appetizingly warm, it also supports your energy-saving efforts.

The L Function in the Context of Smart Cooking

As we evolve towards smart homes and connected devices, appliances like the Instant Pot are becoming more intelligent. Some newer models of the Instant Pot can connect to your smartphone via an app, allowing you to monitor and control your cooking remotely.

In this context, the “L” symbol on your Instant Pot display can also be viewed on your phone screen. You can keep track of how long your food has been warming and decide when to switch off the ‘Keep Warm’ function, all from the convenience of your phone.

Final Words

The Instant Pot, with its multifunctional capabilities, has modernized home cooking, making it more convenient and efficient. The “L” symbol and the ‘Keep Warm’ function play a vital role in this convenience, ensuring your meals are always ready to serve, warm, and safe to eat.

With these insights, you can now confidently navigate your Instant Pot’s functions, avoiding common mistakes, fully utilizing its potential to create delicious meals that accommodate your schedule.