Can I Reheat Oatmeal? A Guide to Leftover Oatmeal

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As a dietitian, I love oatmeal because it is an extremely versatile and healthy breakfast option that can be reheated and enjoyed in various ways.

When I have busy weeks, I usually make a big batch of oatmeal to last me throughout the whole week, which allows me to have healthy and easy breakfasts prepared.

Whether it's steel-cut oats, quick-cooking oats, or even overnight oats, YES, you can reheat your oatmeal to enjoy a warm and delicious breakfast even when time is limited.

Key Takeaways

Oatmeal can be reheated in the microwave or on the stovetop.
The microwave is the fastest method, but the stovetop is best if you’re a picky eater.
Add a bit of extra liquid when reheating oatmeal to prevent it from becoming too thick.
Store cooked oatmeal in an airtight container in the fridge or freeze

The Best Methods for Reheating Oatmeal

Microwave Method

For those looking for the easiest way to reheat oatmeal, the microwave method is the best method.

Place your leftover oatmeal in a microwave-safe bowl.
Add a splash of water or milk to prevent dryness. The amount will depend on the desired consistency and quantity of oatmeal.
Stir the oatmeal to distribute the liquid evenly.
Microwave the oatmeal on high for 1-2 minutes, pausing every 30 seconds to stir. Heating times may vary depending on the microwave and amount of oatmeal

Stovetop Method

If you have enough time, the stovetop method is ideal for consistent reheating, especially for steel-cut oats.

Place your leftover oatmeal in a saucepan or small pot.
Add a splash of milk or water to the oatmeal, ensuring it doesn't stick to the pan.
Heat the oatmeal over medium heat, stirring occasionally, until it reaches the desired temperature. This usually takes around 5-10 minutes.

Air fryer Method

For individual portions or for reheating baked oats, the air fryer works well.

Transfer the desired amount of oatmeal to an oven-safe dish.
Add a splash of water or milk to prevent dryness.
Place the dish in the air fryer and air fry at 350F for 5-6 minutes, or until the oatmeal is heated through.

How should I store leftover oatmeal?

When it comes to storing leftover oatmeal, it's important to do so properly to maintain its freshness and quality.

The best way to store leftover oatmeal is by placing it in an airtight container. This helps to prevent air and moisture from entering, which can lead to spoilage.

Before storing, allow the oatmeal to cool to room temperature.

Then, transfer it to the container and seal it tightly. Refrigerate the oatmeal for up to three days, ensuring it is stored in a section where the temperature remains consistently cold.

If you have a large batch of oatmeal, you can divide it into individual portions in ziplock bags, mason jars, of even muffin tins and store them separately for easy grab-and-go breakfasts.

vegan baked oatmeal with blueberries — Single Serving Baked Oatmeal RECIPE (No eggs, High Protein)

The Benefits of Reheating Oatmeal

Reheating oatmeal offers numerous benefits, making it a popular choice for busy individuals who want a healthy meal. Some advantages include:

Convenience

Reheating oatmeal allows you to enjoy a warm and nutritious breakfast for later use even when you have limited time to cook from scratch.

Versatility

Whether you prefer your oatmeal hot or cold, reheating already-cooked oatmeal provides the flexibility to enjoy it according to your preferences.

Reduced Food Waste

Reheating leftovers reduces food waste by utilizing leftover portions the next morning instead of discarding them.

Customization

Reheated oatmeal can be personalized with a variety of toppings, such as fresh fruit, nuts or nut butter, and spices, to suit your taste preferences and add nutritional variety.

FAQs

What are the drawbacks of eating oatmeal?

While oatmeal is generally healthy, some drawbacks include its high carbohydrate content, which can cause blood sugar spikes in some individuals.

Those with gluten sensitivity should opt for certified gluten-free oats to avoid cross-contamination. Oats also contain phytic acid, which can hinder mineral absorption, but soaking or fermenting oats can help mitigate this issue.

Is oatmeal better for you cooked or raw?

Cooked oatmeal is recommended for better digestibility and nutrient absorption. Raw oats can be harder to digest and may cause gas and other stomach discomfort for some people.

Is steel-cut oatmeal better for you than regular oatmeal?

Steel-cut oats and regular oats have similar nutritional profiles, but differ in texture and cooking time.

oatmeal cooking times by method infographic

Steel-cut oats have a chewier texture, while regular oats (quick-cooking, old-fashioned) are flattened for quicker cooking.

From a nutritional standpoint, they are relatively comparable, with the difference being personal preference and desired texture.

Can you freeze oatmeal?

Yes, cooked oatmeal can be frozen to extend its shelf life.

Portion cooked oatmeal into individual servings and store in airtight containers or freezer bags for up to 6 months.

Thaw in the refrigerator overnight and reheat as desired. Frozen oatmeal may have a slightly different texture, but it remains a convenient option for meal prepping and saving time.

If you're a visual learner, follow this tutorial by Janky Cooking with Jessi on YouTube showing how to reheat oatmeal.

Reheating oatmeal is a simple and effective way to enjoy a warm and delicious breakfast. By following the appropriate methods and incorporating creative toppings, you can elevate your reheated oatmeal to a satisfying and nutritious meal that fits seamlessly into your busy morning routine.

Don't like leftovers? Try my single serving baked oatmeal instead.