Ever Wondered About Your Cooking Oil's Journey?
Have you ever thought about where your cooking oil comes from?
Cooking oils play a crucial role in our daily meals. We pour, sauté, and drizzle without much thought about the intricate journey these oils take from their source to our kitchens. Today, various methods are used to extract oils from seeds, including cold pressing, expeller pressing, solvent extraction, hydraulic pressing, and maceration. The technique chosen to extract your oil affects the oil’s taste, nutrition, and health impact.
While some methods use intense heat and pressure to extract oils, today, we will talk about a kinder & gentler method that has been used since ancient times in India: Cold-Pressing; a choice that has been part of mindful cooking for generations. We’ll explore why this matters for your well-being. After all, making informed choices about what goes into our meals is the first step towards a healthier lifestyle.
Cold-Pressing: A Healthier Choice?
Cold-pressed oils are oils extracted from seeds, nuts, vegetables, or fruits through a mechanical pressing process that operates at lower temperatures, typically below 120 degrees Fahrenheit (49 degrees Celsius). This method avoids using heat or chemical solvents, preserving the source ingredients’ natural flavours, aromas, and nutritional qualities.The process involves crushing the oilseeds or fruits and then mechanically pressing them to extract the oil. Traditional terms like ‘Chekku,’ ‘Ghani,’ and ‘Kolhu’ have been used to describe cold-pressed oils in India. Previously, oilseeds were extracted using a long cylindrical device called a ‘Ghani’.
What Sets Cold-Pressing Apart
A few features set the cold pressed oils apart from oils extracted using another method.
1. Extraction Method
Cold-pressed oils are extracted using a mechanical pressing process that involves crushing and pressing oilseeds or fruits at a relatively low temperature, usually not exceeding 120 degrees Fahrenheit (49 degrees Celsius).
In contrast, conventional extraction methods subject oils to high temperatures, around 200 degrees Celsius, breaking the very antioxidants that make them beneficial. This heat risks the breakdown of essential nutrients and leads to the formation of undesirable trans fats.
2. Avoidance of Heat and Chemicals
Unlike conventional oil extraction methods, cold-pressing does not involve heat or chemical solvents. This is a crucial factor in maintaining the oil’s natural properties of the source ingredients. The high heat, gases like hexane, synthetic antioxidants like TBHQ, and many other chemical solvents used in refined oils can alter the oil’s flavour, texture, and nutritional profile.
3. Preservation of Nutritional Content
Cold-pressing is known for preserving the natural nutrients present in oilseeds or fruits. The process minimises exposure to heat, which can degrade sensitive compounds like vitamins, antioxidants, and essential fatty acids, which refined oils often lose during refining processes, such as degumming, winterisation, deodorisation and more. As a result, cold-pressed oils often retain a higher nutritional value than oils produced with heat-based methods.
4. Quality of Oil
The cold-pressing method is often associated with producing high-quality oils. The absence of heat and chemicals helps maintain the oil’s natural colour, flavour, and aroma which is intentionally removed or neutralised in the refining process.
5. Small-Batch Production
Cold-pressed oils are often produced in smaller batches to maintain quality and freshness. This approach allows for more precise control over the extraction process. It ensures that the oil is not exposed to prolonged periods of heat or light, which could compromise its integrity.
6. Rich Flavor Profiles
Cold-pressed oils often exhibit a more authentic flavour profile. The natural taste of the oilseed or fruit is better preserved, offering a distinct and flavorful experience.
7. No Chemical Residues
The absence of chemical solvents in the cold-pressing process eliminates the risk of chemical residues in the final product. This makes cold-pressed oils cleaner and more natural for those seeking minimally processed and chemical-free food products.
8. Emphasis on Artisanal and Sustainable Practices
Cold-pressed oils are often associated with artisanal production and a commitment to sustainable practices. Producers prioritizing small-batch, environmentally friendly methods contribute to the unique identity and appeal of cold-pressed oils in the market.
Health Benefits of Cold-Pressed Oils
1. Rich In Antioxidants
Antioxidants are vital for overall health, as they contribute to the prevention of cellular damage and inflammation and support a healthy immune system. Cold-pressed oils retain essential antioxidants such as tocopherols and sterols. These compounds play a crucial role in protecting the body from oxidative stress by combating free radicals.
2. Retained Nutritional Value
Retaining the nutritional content ensures you receive the maximum health benefits from these oils. The cold-pressing method preserves the natural nutrients in oilseeds, including essential vitamins like Vitamin E and beta-carotene.
3. No Harmful Chemicals
The absence of chemical residues ensures the oil’s purity, addressing concerns related to potential health risks associated with chemical processing. Cold-pressed oils are extracted without harmful chemicals such as hexane, phosphoric acid, or bleaching agents.
4. Enhanced Immunity
A strengthened immune system is crucial for preventing infections and maintaining overall health and well-being. Cold-pressed oils contain oleic acid and lauric acid, which are known to boost the immune system.
5. Improved Cholesterol Levels
Cold-pressed oils promote good cholesterol (HDL) and help remove bad cholesterol (LDL) from the body, contributing to heart health.
6. No Production of Free Radicals
Unlike commercial extraction methods that generate free radicals, cold-pressed oils are devoid of these potentially harmful compounds.
Choosing the Right Cold-Pressed Oil
When cooking with these oils, it’s crucial to consider their smoke points, Which refers to the temperature at which an oil begins to smoke and break down, leading to a loss of flavour and producing harmful compounds. Different oils have different smoke points, and choosing the right oil for your cooking method is essential. For high-heat cooking methods like frying, oils with high smoke points are preferable, while delicate oils with lower smoke points are better suited for low-heat cooking or drizzling.