What Knife to Use to Cut Watermelon


Watermelon is a summertime staple, and nothing beats a refreshing slice on a hot day. But, cutting into a watermelon can be a daunting task, especially if you don’t have the right knife. In this article, we will discuss the different types of knives suitable for cutting watermelon and provide a step-by-step guide on how to do it.

Why choosing the right knife matters

Choosing the right knife is essential when it comes to cutting watermelon. Using the wrong knife can make the process difficult, messy, and even dangerous. For example, using a dull knife may require more force, leading to a higher risk of slipping and cutting yourself. On the other hand, using a serrated knife may leave you with uneven slices or a torn-up mess. Therefore, it’s crucial to choose the right knife to make the task easier and safer.

Types of knives suitable for cutting watermelon

Chef’s knife

A chef’s knife, also known as a cook’s knife, is a versatile knife that can handle most cutting tasks in the kitchen, including cutting watermelon. It typically has a broad blade that curves upward to a point, making it suitable for slicing and chopping. Its weight and size make it easy to handle and provide leverage when cutting through the thick skin and flesh of a watermelon.

Santoku knife

A Santoku knife is a Japanese knife that is becoming increasingly popular in Western kitchens. It has a shorter and wider blade than a chef’s knife, making it perfect for slicing and chopping vegetables, fruits, and meat. Its flat blade makes it easier to achieve straight and even cuts.

Paring knife

A paring knife is a small, versatile knife used for peeling, trimming, and slicing small fruits and vegetables. Although it’s not the best choice for cutting a whole watermelon, it’s handy for removing the rind and cutting the fruit into smaller pieces.

Serrated knife

A serrated knife has a jagged edge that can grip the tough skin of a watermelon, making it perfect for cutting through the rind. It’s also useful for slicing soft fruits without squishing them. However, it’s not recommended for cutting the flesh of the watermelon as it may result in uneven slices.


A cleaver is a large, heavy knife with a broad blade, perfect for chopping through bones and hard vegetables. While it’s not the most obvious choice for cutting watermelon, its weight and sharpness make it suitable for cutting through the tough skin and flesh.


How to choose the right knife

When choosing a knife to cut watermelon, you need to consider the type of knife, the blade’s length, and the handle’s grip. A knife with a longer blade will make it easier to cut through the watermelon, while a knife with a comfortable handle will reduce hand fatigue.

Step-by-step guide on cutting a watermelon

Step 1: Preparing the watermelon

Before cutting into the watermelon, you’ll need to prepare it properly. Start by washing the watermelon thoroughly with water to remove any dirt or debris. Then, place it on a cutting board, and position it so that the stem end is facing up.

Step 2: Cutting the ends

Using a sharp chef’s knife or a cleaver, slice off both ends of the watermelon. This will give you a flat surface to work with and prevent the watermelon from rolling around as you cut it.

Step 3: Cutting the watermelon in half

With one end of the watermelon removed, turn the watermelon onto one of its flat sides. Using a sharp chef’s knife, cut the watermelon in half, lengthwise, down the middle.

Step 4: Cutting the watermelon into wedges

Place one half of the watermelon flat-side down on the cutting board. Using a sharp knife, cut the watermelon into wedges, about 1-2 inches thick, starting from the top of the watermelon down to the bottom. Repeat the process with the other half of the watermelon.

Step 5: Removing the seeds

Using a small paring knife, carefully remove any visible seeds from each wedge. Alternatively, you can also use a melon baller to scoop out the seeds.

Tips for cutting watermelon

Use a sharp knife to make clean cuts and avoid injuries.
Make sure to stabilize the watermelon on a cutting board to prevent it from rolling around.
Cut the watermelon in half before slicing it into wedges for easier handling.
Remove the seeds from the wedges using a small paring knife or a melon baller.

Frequently asked questions

Q: Can I use a serrated knife to cut watermelon?
A: While a serrated knife can be useful for cutting through the tough skin of a watermelon, it’s not recommended for slicing the flesh as it may result in uneven cuts.

Q: How do I know when a watermelon is ripe?
A: Look for a watermelon that is symmetrical, firm, and heavy for its size. The skin should also have a uniform color, and the underside should have a creamy yellow spot indicating ripeness.

Q: How do I store cut watermelon?
A: Store cut watermelon in an airtight container in the fridge for up to four days.

Q: Can I eat the watermelon rind?
A: Yes, the watermelon rind is edible and can be used in recipes such as pickled watermelon rind.

Q: Can I freeze watermelon?
A: Yes, watermelon can be frozen, but it may become mushy when thawed. It’s best to use frozen watermelon in smoothies or as a refreshing snack on a hot day.


Choosing the right knife is crucial when it comes to cutting watermelon. A sharp chef’s knife or a cleaver is ideal for slicing through the tough skin and flesh. Remember to stabilize the watermelon on a cutting board and remove the seeds from each wedge. With these tips, you’ll be cutting watermelon like a pro in no time.

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