Ella Walter
Deep-fried foods are often associated with being unhealthy, but there are ways to make them healthier. Using a deep fryer can help regulate the temperature of the oil, which is key to preventing the breakdown of fats and the release of harmful free radicals. Oils with high smoke points, such as avocado oil, are recommended to prevent the formation of harmful free radicals and carcinogens. Additionally, using clean oil for frying, avoiding overcrowding the pan, and salting after frying can also contribute to healthier deep-fried foods. While deep frying may not be the healthiest cooking method, making conscious choices about oil selection and cooking techniques can help improve the overall healthiness of deep-fried dishes.
Characteristics of cooking healthy with a deep fryer
| Characteristics | Values |
|---|---|
| Oil temperature | 160°C to 200°C, depending on the food item |
| Oil type | Avocado oil, extra-virgin oil, virgin coconut oil, grapeseed oil |
| Food items | Vegetables (Okra, Broccoli, Zucchini), Shrimp, Chicken, Bacon |
| Other techniques | Use clean oil, salt after frying, use a slotted spoon, don't crowd the pan |
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What You'll Learn
Use a high smoke point oil
Using oil with a high smoke point is essential when cooking with a deep fryer. The smoke point is the temperature at which an oil starts to break down, releasing harmful free radicals and a carcinogen called acrolein. To prevent this, use an oil with a smoke point above 205°C, such as avocado oil, which can withstand temperatures up to 271°C. Extra-virgin oil is also a good option due to its low polyunsaturated fat content and high antioxidant content. More than 90% of its fats are saturated, making it very heat resistant.
When deep frying, the oil temperature can range from 160°C to 200°C, depending on the food being fried. It's important to preheat your fryer to the correct temperature. For example, 190°C is a suitable temperature for frying vegetables with a light and crispy batter. Fry in small batches for around three minutes, turning the food occasionally to ensure even cooking.
If you're using a manual deep fryer, you'll need to regulate the temperature of the oil yourself. When you add food to the fryer, the heat will drop, so you'll need to increase the heat source to maintain the desired temperature. If the oil gets too hot, lower the heat to prevent it from smoking and burning your food.
To ensure the best results and maintain the quality of your oil, always use clean oil for frying. Reusing oil can cause it to smoke and burn your food. It can also absorb flavours that may ruin the taste of your food. If you're concerned about waste, look for centres that recycle used cooking oil.
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Regulate temperature
Regulating the temperature is crucial when cooking with a deep fryer. The ideal temperature range for frying is between 160°C and 200°C, depending on the food being fried. For instance, one recipe suggests preheating the fryer to 190°C, while another recommends 170°C.
It is important to note that the temperature of the oil will drop when food is added, so the heat source should be adjusted to compensate and maintain the desired temperature. This can be done manually by increasing the flame, or with an electric fryer that has adjustable temperature controls.
Using a thermometer is an effective way to monitor the oil temperature, especially when frying manually with a pan and slotted spoon. A deep fryer, on the other hand, regulates the temperature automatically, making it a convenient option.
Additionally, the type of oil used can impact the temperature. Oils with a high smoke point, such as avocado oil (up to 271°C) or extra-virgin oil, are suitable for deep frying due to their heat resistance.
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Use clean oil
Using clean oil is an important step in cooking healthy food with a deep fryer. While some people like to strain and reuse oil, this is not recommended as the properties of the oil break down each time it is used. Reusing oil can cause it to smoke and burn your food. It can also absorb flavours that will ruin the taste of your food.
To ensure you are using clean oil, it is best to use a new batch each time you fry. If you feel bad about throwing oil away, you can look for centres that recycle used cooking oil.
It is also important to regulate the temperature of the oil. When you add food to the pot, the heat will drop, so you should raise the flame to return it to the correct temperature. If the oil gets too hot, lower the temperature. The ideal temperature range for frying is between 160°C and 200°C, depending on what you are frying.
Oil has a smoke point, which is the temperature at which the fats in the oil begin to break down and release harmful free radicals and a carcinogen called acrolein. A deep fryer is useful as it regulates the temperature for you. To prevent the oil from reaching its smoke point, choose an oil with a high smoke point, such as avocado oil, which can withstand temperatures up to 271°C.
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Salt after frying
While frying is a surefire way to elevate a dish, there are some rules to follow when it comes to preparing your food. One of the most fundamental mistakes is salting your food before frying it. Salting draws out moisture from the food via osmosis, and if you leave salted meat or vegetables to sit, you will notice droplets of water forming on the exterior. This moisture can cause oil to splatter when the food is placed in the fryer, which is not only messy but can also be dangerous.
Salt can also negatively affect the oil itself. If there is too much salt in the oil, it can give your food an unpleasant taste. This is because salt can accelerate the breakdown of oil through oxidation, creating impurities that can cause the oil and food to become overly brown and taste stale.
Instead, it is recommended to wait until after your food is done frying to add salt. This way, you can still get a rich flavour and a nice, crispy texture without the negative effects of salting beforehand.
When frying, it is also important to use an oil with a high smoke point, such as avocado oil, to prevent the release of harmful free radicals, and to preheat your fryer to the appropriate temperature, which can range from 160°C to 200°C depending on the food you are frying.
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Fry vegetables
Frying vegetables is a great way to add a crispy texture to your meal. You can deep fry almost any vegetable, from broccoli to potatoes, and even okra.
To fry vegetables healthily, use a pressed oil with a high smoke point (205°C+). Avocado oil, for example, can withstand temperatures up to 271°C. Good-quality extra-virgin olive oil is also a good option, as it can handle exposure to high temperatures due to its low polyunsaturated fat content. It's also a source of antioxidants.
When frying, use canola oil—it's lower in saturated fat and doesn't absorb into the food like other oils. Always pat dry whatever it is you are going to batter and fry; this way, the batter will stick better. Preheat your oil to 325-350°F. Use a thermometer to ensure the oil is at the right temperature before frying. With a large spoon or skimmer, stir the contents of the fryer so they don't stick together. Fry in batches for about 3 minutes or until floating and lightly browned. Do not overcook—you don't want your veggies to be mushy. Remove the vegetables from the oil and place them on a platter with a good-quality paper towel to drain and absorb the excess oil.
You can also add a batter to your vegetables before frying. To make a batter, whisk flour, baking powder, sesame seeds, tahini paste, and soda water in a bowl. Don't worry if it's a bit lumpy. Submerge the vegetables in the batter before adding them to the fryer. Fry for about 3 minutes or until light and crispy, then scoop out and let them rest on a cooling rack to drain.
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Frequently asked questions
The temperature of the oil is key and can range from 160°C to 200°C, depending on what you’re frying. Preheat your fryer to 170°C-190°C.
Pick a pressed oil with a high smoke point (205°C+) to prevent the release of harmful free radicals. Avocado oil can withstand temperatures up to 271°C. Good-quality extra-virgin oil can also handle exposure to high temperatures. Virgin coconut oil and grapeseed oil are also good options.
You can make tempura vegetables, such as broccoli and zucchini.
Salt after you fry, as salting beforehand will make the oil splatter. Use a slotted metal or heat-resistant silicon spoon to take things out of the oil. Don't overcrowd the pan as it lowers the oil temperature.
It is recommended to use clean oil to fry as the properties of the oil break down each time you use it. Reused oil is more likely to smoke and burn your food, as well as absorb flavours that can ruin the taste.
