Adding vinegar to oil when frying, especially for potatoes, helps create crispier results by slowing pectin breakdown and reducing excess sugars, preventing browning while allowing longer frying; it also adds a tangy flavor, balances richness in things like bacon, and can absorb cooking odors. While sometimes added to the soaking water before frying or drizzled while cooking, it's not typically mixed directly into hot oil as a permanent emulsion but rather as a treatment to the food.
Another of her secrets: Vinegar added to the oil helps make them extra crispy. Unlike with most fried dishes, when cooking egg rolls, the oil temperature should be lower so that the raw mixture is thoroughly cooked and the wrappers reach golden perfection.
In the presence of an emulsifier adding the oil slowly will create an emulsion. The oil will be basically dissolved into the vinegar. This will result in a vinaigrette that will be slightly more viscous and will adhere better to the target food.
Why It Works. Parboiling the fries in a vinegar and water solution before an initial quick-frying slows the breakdown of pectin in the potatoes to yield fries with tiny, bubbly, blistered surfaces that stay crisp even when cool. It also rinses off excess sugars to prevent over-browning.
So why is vinegar a game-changer for crispy fries? Much like soaking potatoes in water gives extra-crispy results, a vinegar soak helps remove excess surface starch, allowing more moisture to escape during frying and preventing the dreaded sogginess. But vinegar does more than just remove starch.
The acidity or sourness of vinegar brightens the flavor of food and adds balance to a rich dish. It is found in popular kitchen staples like salad dressings, marinades, sauces, mayonnaise, and ketchup.
Rub the skin with olive oil, and either vinegar or lemon juice, to help conduct the heat of the oven to the skin. Turn the oven to at least 230C and blast the joint with heat for about 30 minutes or until the skin starts to bubble and brown.
Soak the Potatoes: Place the potato strips in a bowl of cold water for at least 30 minutes (or up to 2 hours). This removes excess starch and helps make the fries extra crispy. Drain and Dry: Drain the potatoes and pat them dry thoroughly with a kitchen towel.
first time trying @fiveguys french fries 🍟 ps, don't forget about the malt vinegar like i did.
The main reasons to cut the potatoes and pre-soak in water are: To allow the excess starches and sugars to be removed from the outer surface of the fry strips AND to keep the potatoes from browning prematurely from exposure to air. Covering in water helps the potato from turning a dark color.
The basic ratio for vinaigrette is 1:3 or one part vinegar to three parts oil. Always start with the vinegar and always end with the oil.
Olive oil only has three enemies: heat, light, and air. When exposed to these elements, the oil can turn rancid and lose healthy antioxidants, in turn degrading the flavor.
Red wine vinegar and an olive oil blend. It's how a Jersey Mike's sub gets its exquisite zing. It's how bites get boosted, and a great sub becomes an even better one.
Why Pair Oil and Vinegar. The combination of oil and vinegar has long been used in many cuisines for several dishes. Acidic vinegar balances and contrasts with fatty oil in a base for salad dressings, marinades, and more.
Place all the potatoes together in the bowl. Now add water to the bowl. Next add two tablespoons of white vinegar. The vinegar helps make the fries dryer when frying.
If it smells like something waxy, it has likely gone rancid. Taste → Take a small sip. Olive oil should taste fresh, peppery, or slightly bitter in a pleasant way. If it tastes flat, stale, or even greasy, that is a clear sign it is no longer suitable for cooking.
Five Guys has by far the least healthy fries in our study, while KFC is the fifth least healthy, with significantly fewer calories and lower saturated fat than Five Guys fries. French Fries have high salt and fat levels, which can tip an already unhealthy fast-food main into the danger zone.
Unlike Americans who love to drench french fries in ketchup, or Belgians who prefer mayonnaise, British people have a fondness for malt vinegar, a traditional fish and chip condiment that reputedly became popular in the late 19th century.
Most people think Five Guys burgers are just smashed on a grill — but that's not actually how it's done. 🔥 They use a 3-stage cooking method. The patty hits the flat top, cooks until the pink turns gray up the sides, then it's flipped and pressed — not before.
The suppliers we work with first peel, cut and blanche the potatoes. They then dry, partially fry and quickly freeze the fries for our restaurants. Once in our kitchens, we cook them in our canola-blend oil so you can have them crispy and hot—just the way you like them.
The Science of Double Frying
Once the first fry is done, the heat is cranked up for the second frying. While frying at a higher temperature, the exterior quickly becomes crispy achieving that wonderful golden crunch we all love.
Soaking potatoes in cold water helps get rid of the starch. Starch makes things crumbly and soft, and we want our fries to be sturdy and crisp. Soak them for at least one hour, or as long as overnight. The longer you can soak them, the better.
The secret to super crispy crackling involves three key steps: deeply scoring the skin, ensuring it's bone-dry (ideally by leaving it uncovered in the fridge overnight or pouring boiling water over it), and starting the roast in a blisteringly hot oven (around 220-240°C) to puff the skin, then reducing the heat to cook the meat. Generously salting and oiling the scored skin helps it crisp up beautifully.
The acid in the vinegar can also help to slightly break down the surface of the potatoes, aiding in the development of a crispier texture during frying. Additionally, the vinegar can contribute to a golden-brown color on the exterior of the fries.
Vinegar also helps to dry out the pork skin quickly, increasing the chances of perfect puffy crackling. It doesn't seem to matter if you use red wine vinegar (which Matt uses), or white vinegar or rice wine vinegar, the result is the same.