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How to Fry the Perfect French Fries

How to Fry the Perfect French Fries

Last updated on 8/06/2019

The secret to achieving the perfect french fries is to fry them twice. Eliminating a majority of your potatoes' moisture before the final frying is key to yielding a crispy, golden brown product. To help you improve your restaurant's fries, we share the best potatoes for frying, how to choose the best oil, potato preparation tips, and how to season your french fries for the best flavor.

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The Best Potatoes for French Fries

crisp french fries

The following varieties are some of the best types of potatoes for making french fries:

  • Russet
  • Katahdin
  • Norkotah
  • Kennebec

Choose a Starchy Potato with Low Moisture

The best frying potatoes have a high starch content and low moisture content. Starchy, low-moisture potatoes will yield the crispiest french fries. Once you choose a starchy variety like the ones above, you can test the moisture content of each potato with a saline test.

Here is how to test the moisture content of your potatoes:

  1. Create saline solution: Dissolve 1 cup of salt into 8-10 cups of water.
  2. Insert potato: Place each potato individually into the saline solution.
  3. Observe potato: Look at the potato in the solution. If the potato floats, it has a high moisture content. If it sinks or is suspended in the middle, it has a low moisture content.
  4. Organize: Sort your potatoes, setting aside the high moisture potatoes to be used for another dish that isn’t fried.

The Best Oil for Deep Frying French Fries

french fries in oil

The best cooking oil for deep frying french fries is any neutral oil with a high smoke point. Canola oil and peanut oil are two common choices. A neutral oil won’t affect the flavor of your fries, and an oil with a high smoke point (the point at which an oil starts to break down when heated) will be stable throughout your frying process.

How Old Should My Oil Be for Frying French Fries?

Ideally, you should use oil that has been used a few times and has had the chance to break down a bit. Since they haven't broken down at all, the molecules in brand new oil may not bond well with your french fries. As a result, your fries won't be as crispy. On the other hand, oil that is at the end of its life in your deep fryer may have some residual flavors from other menu items, or it may start to smoke as a result of too much breakdown.

How to Deep Fry French Fries

The best method for achieving perfect, crispy french fries is to deep fry your potatoes twice. Below, we’ll explain the best way to prepare potatoes for frying, how long to fry french fries, and how long you can hold fries before serving.

  1. Wash the potatoes: Ensure that your potatoes have been properly washed before you begin the cooking process.
  2. Optional: Peel the potatoes Depending on your preferences, peel your potatoes before frying.
  3. Cut the potatoes to your desired size: You can cut them by hand or use a french fry cutter for maximum efficiency and uniformity.
  4. Soak the potatoes: Be sure to soak the potatoes for 3 to 24 hours in a water and vinegar mixture. Soaking them will help to remove the excess starch and promote crispness. To make the mixture, put 1 tablespoon of vinegar into a gallon of water. This vinegar will help to keep the potatoes from oxidizing and discoloring.
  5. Dry the potatoes: It is important to dry your potatoes before frying them to prevent spattering. Use a clean towel to pat them dry on a sheet pan or put them into a salad dryer to remove the excess moisture. If you store the potatoes uncovered in your cooler overnight, this will help to further dry them out.
  6. Blanch the potatoes: Begin to blanch the potatoes by frying them at 325 degrees for 3-6 minutes. The time will vary depending on the cut of your fries. Shoestring fries, also known as matchsticks, are only 1/8 inch thick and cook in a minute or less. Small, 1/4 inch French fry cuts take 2-3 minutes. Larger cuts like 3/8 or 1/2 inches will take 4-6 minutes. You are done blanching the potatoes when you can bend them without breaking them.
  7. Cool the fries: For efficiency, you can blanch several batches of potatoes and let them cool in your fridge or walk-in cooler. When it’s almost time to serve them, remove them from the cooler to be fried a second time.
  8. seasoned french fries
  9. Fry them again: After cooling the fries, fry them a second time at 375 degrees for 2-3 minutes. Since you have already blanched the potatoes to partially cook them, this second round in the fryer will make them crispy. Look for a golden brown exterior to know they’re finished.
  10. Season the fries: Be sure to season your fries while the oil is hot. The hot oil will help your seasonings stick to the fries. Use salt, spices, fresh herbs, or even oils to flavor your fries.
  11. Serve: The ideal holding time for french fries is no more than 5 to 10 minutes. After that, the fries will lose some of their crispiness and become cold.

Creating the perfect french fries takes time. This process will help you to achieve the crispiest final product, but you can always adjust the frying time if you prefer soft fries. Experiment with seasonings, cuts, or even frying oils to create the best signature fries for your establishment.

Related Resources

French Fry Cutter Buying Guide

Fresh cut fries are a big moneymaker for anyone in the foodservice industry. From concessions, to bars, to casual restaurants, customers are always looking for good fries to complement their meals or munch on as a midnight snack. A french fry cutter is the perfect way to reduce prep time, ensure uniformity in your fries, and provide the freshest tasting product! This guide will teach you how to cut french fries while determining the best french fry cutter for your application. Shop All Commercial French Fry Cutters

How to Clean & Boil Out a Deep Fryer

Regularly cleaning deep fryers is essential for establishments like Southern kitchens, fast food operations, and diners that rely heavily on their fryer. One of the best ways to clean your fryer is by boiling it out. Keep reading to learn what boiling out a deep fryer means, why you should do it regularly, and how to boil out your deep fryer successfully with these easy steps. Shop All Fryer Cleaner What Does It Mean to Boil Out a Deep Fryer? Boiling out a deep fryer is the process of removing old oil , adding water and cleaning solution, and then boiling the water to thoroughly clean the interior of the fryer and remove any hard, stuck-on grime. Why Should I Boil Out My Deep Fryer? One of the main reasons you should boil out your deep frye

French Fry Holder Guide

French fries are an all-time favorite, and serving them up in the right french fry holder is important. French fry containers come in a variety of materials and shapes, making it easy to find one to match the style of your business. As a bonus, they also help you serve a consistent portion to guests and manage product costs efficiently.

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