
French fries are a popular snack, but getting them crispy can be a challenge. The conventional method involves soaking the raw fries in water, followed by a double fry. The first fry is at a lower temperature to cook the interior of the potato and make it soft, while the second fry is at a higher temperature to crisp up the exterior. The type of potato and oil used, as well as the temperature and cooking time, all play a crucial role in achieving the perfect fry.
How long do you cook French fries in a deep fryer?
| Characteristics | Values |
|---|---|
| Soaking time | 30 minutes to an hour |
| First fry temperature | 275–300 °F (135–149 °C) |
| First fry duration | 4-7 minutes |
| Second fry temperature | 350–400 °F (175–204 °C) |
| Second fry duration | 1-6 minutes |
| Total cooking time | 5-13 minutes |
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What You'll Learn

Soak the potatoes before frying
Soaking the potatoes before frying is a crucial step in achieving the perfect french fries. While it may seem like an unnecessary step, soaking the potatoes brings multiple benefits that will elevate your fries from good to excellent.
Firstly, soaking the potatoes helps to remove excess starch. Potatoes naturally contain a high amount of starch, and by soaking them, you can reduce the starch content, resulting in crispier fries. The starch removal also contributes to a fluffier inside texture. Additionally, soaking helps to rinse away excess sugars, enhancing the overall flavor of the fries.
Another advantage of soaking is that it prevents the potatoes from browning prematurely during the frying process. This is achieved by placing the cut potatoes in a bowl of cold water as you prepare them, preventing oxidation and maintaining the desired color.
The duration of soaking can vary depending on your preferences and time constraints. A minimum of 15 minutes is recommended, but for optimal results, aim for 30 minutes to an hour. If you're short on time, even a quick soak will make a difference. Alternatively, you can prepare ahead and soak the potatoes for 2-3 hours or even overnight.
After soaking, it is essential to thoroughly pat the potatoes dry with paper towels or a kitchen towel. Removing excess water is crucial, as it ensures your fries will be crispy and prevents sputtering when they come into contact with hot oil.
In summary, soaking the potatoes before frying is a simple yet impactful step that improves the texture, color, and flavor of your french fries. By removing excess starch and sugars, preventing premature browning, and promoting crispiness, this technique elevates the overall quality of your homemade fries. So, the next time you're craving french fries, remember to soak those potatoes!
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Use the right oil
When it comes to deep-frying French fries, choosing the right oil is essential for achieving the perfect flavour and texture. Here are some key considerations to keep in mind:
Smoke Point
The smoke point of an oil is the temperature at which it begins to break down and produce smoke. Using an oil with a low smoke point, such as extra virgin olive oil or avocado oil, can result in burning and a compromised flavour. Oils with a high smoke point are better suited for deep frying, as they can withstand higher temperatures without breaking down. Examples of oils with high smoke points include peanut oil, canola oil, vegetable oil, and sunflower oil.
Flavour Profile
The flavour of the oil you choose can also impact the taste of your French fries. Some oils, such as canola oil, may impart an unwanted flavour to your fries. Refined peanut oil, on the other hand, is known for its neutrality, allowing the natural potato flavour to shine through. If you're looking for a richer, deeper flavour, consider using beef tallow or duck fat, which are also stable at high temperatures.
Cost and Availability
Cost and availability are also important factors when choosing an oil for deep frying. Refined peanut oil is a popular choice due to its affordability and wide availability in most grocery stores. Vegetable oil is another economical option, but it may be less suitable if you're seeking a neutral flavour profile.
Reuse and Storage
If you plan on reusing your frying oil, consider using tallow, which can be filtered and reused multiple times without compromising quality. Additionally, think about the storage life of the oil and choose an option that aligns with your usage frequency.
Personal Preferences and Experimentation
Ultimately, the "best" oil for deep frying French fries may vary from person to person. Don't be afraid to experiment with different oils to find the one that suits your taste preferences and cooking needs. You can also try combining oils or adding flavours to enhance the taste of your fries.
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Use a thermometer to check temperature
When making French fries, it is important to use a thermometer to check the temperature of the oil. This is crucial for successful frying and will ensure that your fries are cooked evenly and safely.
If you are using a deep fryer, follow the manufacturer's instructions to set up and preheat your machine. Most electric deep fryers will reach the target temperature within 10 to 20 minutes. If your machine has a lid, keep it on and secure during this time to help lock in the heat.
The ideal temperature for the first round of frying is between 275 and 300 °F (135-149 °C). This initial fry is meant to heat the potatoes through and make them soft. Your fries should still be relatively soft when you take them out. If they start to brown or crisp, your oil is too hot or you've fried them for too long.
After the first fry, increase the heat of the oil to 375 °F (190 °C). This second fry is where you'll achieve the golden brown colour and crunchy texture of the fries.
If you don't have a deep fryer, you can use a heavy-bottomed saucepan and a thermometer to monitor the temperature of the oil. Fill the saucepan with a few inches of your chosen frying fat, such as beef tallow, duck fat, or peanut oil, and heat it to the desired temperature before adding the potatoes.
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Fry in two batches
To make French fries in a deep fryer, you'll need to fry them in two batches at two different temperatures. This is the conventional way of making French fries and is the default method used by many restaurants and pubs.
First, cut your potatoes into fries. Then, soak them in cold water for 30 minutes to an hour to reduce the amount of starch and prevent premature browning. Drain the potatoes and dry them thoroughly with paper towels or a kitchen towel.
Now, you're ready to fry your first batch. Fill your deep fryer about 1/3 of the way with your preferred frying oil, such as peanut, canola, vegetable, or sunflower oil. Preheat the oil to 275°F (135°C). Gently place half of your potatoes into the hot oil, being careful to avoid splashing. Fry for about 5 minutes, stirring and flipping the potatoes occasionally. The purpose of this first fry is to cook the interior of the potato, so they should be relatively soft when you take them out.
Remove the first batch of fries from the oil and place them on a paper towel-lined plate to cool. Increase the oil temperature to 350°F (175°C) to 400°F (204°C). Once the oil reaches the desired temperature, fry the first batch for another 3 to 6 minutes, or until they are golden brown and crunchy.
Repeat the above steps for the second batch of fries. Serve your French fries hot with a sprinkle of salt, and enjoy!
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Drain and season
Once you've cut your potatoes into fries, it's important to soak them in cold water for at least 30 minutes to an hour. This will prevent them from turning brown and reduce the amount of starch, resulting in crispier fries. If you're short on time, you can soak them for as little as 10 minutes or even skip this step altogether. However, the longer you soak them, the crispier they'll be.
After soaking, it's crucial to dry the potatoes thoroughly before frying. Use a kitchen towel or paper towels to blot them until they are as dry as possible. This step is important because excess moisture can cause sputtering and increase the time it takes for your fries to brown.
Now, you're ready for the first fry. Set your deep fryer to 275–300 °F (135–149 °C). If your deep fryer has a lid, make sure it's secure to retain the heat. Depending on the model, it should take 10-20 minutes to reach the desired temperature. Once the oil is hot, carefully place the potatoes into the fryer. Use a slotted spoon, tongs, or a fry basket to avoid splashing. Fry the potatoes for about 5 minutes, stirring and flipping them occasionally. The purpose of this first fry is to cook the interior of the potato, so they should still be relatively soft when you take them out.
Remove the fries from the oil and place them on a paper towel-lined plate or baking sheet to drain and cool. Spread them out in a single layer so they can "breathe." Let them sit for at least 5 minutes, or until they are completely cool. While the potatoes are resting, increase the oil temperature to 350–375 °F (175–190 °C).
For the second fry, carefully place the potatoes back into the hotter oil. This step is crucial for achieving the desired golden brown color and crunchy texture. Fry for an additional 3-6 minutes, stirring frequently. Keep a close eye on them during this final stage as they can quickly go from golden brown to burnt.
When your fries are done to your liking, remove them from the oil and drain them on paper towels once again. Blot any excess oil and season with salt and pepper, or your favorite seasonings. Enjoy your freshly made, crispy French fries!
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Frequently asked questions
French fries are usually cooked in two stages. First, cook them for around 5 minutes at 275–300 °F (135–149 °C) until they are soft. Then, increase the oil temperature to 375 °F (190 °C) and cook for another 3-6 minutes until golden brown and crispy.
First, cut the potatoes into fries. Then, soak them in cold water for 30 minutes to an hour to remove excess starch and prevent premature browning. Drain the potatoes and dry them thoroughly with paper towels or a tea towel.
Peanut, canola, vegetable, and sunflower oil are all good choices due to their high smoke points. You can also use tallow, which is more stable at high temperatures than other fats and will give your fries a delicious flavour.











































