Which is better, self-pressed oil or supermarket oil? Can self-pressed oil be eaten?
The quality of edible oil bought in supermarkets is guaranteed. Most of the oils sold in supermarkets are from large manufacturers such as Luhua, Jinlongyu, and other brands. The selection of materials, oil pressing, and packaging have all undergone strict inspections before leaving the factory. Therefore, the branded edible oils purchased in large supermarkets generally do not have quality issues.
However, most of the edible oils in supermarkets lack the fragrance of self-pressed oils. This is because large factories typically use solvent extraction methods, which result in a high oil extraction rate but a lighter aroma. This is the main reason why many people who are used to self-pressed oil find it hard to adjust to commercial oils.
Many people prefer self-pressed oil because they can use their own materials and can oversee the processing, feeling it is safer. Self-pressed oil is usually pressed after cooking, resulting in a lower oil extraction rate but a richer flavor. However, self-pressed oil also has a fatal flaw, which is the potential presence of aflatoxins.
In rural areas, there are mostly small oil mills where the machines are rudimentary and lack equipment for removing aflatoxins. Rural self-pressed peanut oil ranked first on the list of suspected carcinogenic foods released last year, mainly due to the lack of aflatoxin removal equipment in rural oil mills.
Comparatively, commercially sold standard oils from supermarkets are better, but it is important to note that you should buy from reputable supermarkets and choose oils from major brands. Avoid purchasing cheap oils from small vendors as they may be using low-quality ingredients.
Can self-pressed oil be eaten?
The oil pressed by household oil presses is edible, but it is essential to ensure cleanliness during the operation and the quality of the raw materials. It is also not recommended for long-term consumption.
1. Oil pressing process: Ensure the cleanliness and hygiene of household oil presses to avoid oil deterioration and contamination. During operation, follow the instructions for use to prevent a decrease in oil quality due to improper operation. Before pressing the oil, clean and disinfect all parts of the oil press to ensure there is no bacterial or stain residue. Additionally, regularly replace the filter and other components of the oil press to maintain its proper functioning.
2. Raw material quality: Purchase fresh, dry, and mold-free ingredients to ensure the quality of the oil. Choose high-quality seeds, nuts, or plants to make the oil, ensuring a higher quality of the pressed oil. Avoid using deteriorated, odorous, or moldy ingredients to avoid affecting the oil’s quality.
3. Storage method: Store the pressed oil in a dry, cool, and dark place in a clean, airtight container to prevent oxidation and deterioration. Exposure to sunlight or high temperatures can cause a decrease in oil quality. Additionally, ensure the container holding the oil is tightly sealed to prevent external contaminants from entering the oil.
