How to fry corn to produce oil
In recent years, with the rise of healthy diet, corn oil has attracted much attention because of its rich content of unsaturated fatty acids and vitamin E. Many people are curious about the extraction process of corn oil, especially how to fry the oil from corn under home conditions. This article will combine the hot topics and hot content on the Internet in the past 10 days to give you a detailed introduction to the methods, steps and precautions of corn frying.
1. Extraction principle of corn oil
Corn oil is mainly extracted from corn germ. The germ accounts for about 10%-15% of the weight of corn, and the oil content is as high as 35%-50%. Home frying oil usually uses physical pressing, which uses high temperature and pressure to separate the oil from the germ.
2. Basic steps for corn frying
| steps | Operating Instructions | Things to note |
|---|---|---|
| 1. Selection of materials | Choose fresh, plump corn kernels, giving priority to high-oil corn varieties | Avoid using corn that is moldy or damp |
| 2. Separate the germs | Soak the corn kernels and then peel off the germ manually, or use professional equipment to separate it. | The germ needs to be kept dry |
| 3. Drying | Dry the germ at low temperature around 60°C until the moisture content is less than 5% | Too high a temperature will destroy nutrients |
| 4. Press | Use a household oil press to press at a temperature of 120-150℃ | Control the temperature and time |
| 5. Filter | Filter the oil residue with fine gauze to obtain clear oil. | Can be filtered multiple times to improve purity |
| 6. Storage | Store in dark glass bottles and avoid light | Recommended to refrigerate after opening |
3. Key data of corn frying oil
| Project | data |
|---|---|
| Oil yield | The oil yield rate of high-quality corn germ is about 30%-40% |
| Optimal pressing temperature | 120-150℃ |
| shelf life | 12 months unopened, 3-6 months after opening |
| Nutritional information | Each 100g contains 20-30mg of vitamin E and more than 85% unsaturated fatty acids |
4. Frequently Asked Questions
Q: Can ordinary corn be fried in oil?
A: Yes, but the oil yield is low. It is recommended to choose special high-oil corn varieties.
Q: What equipment is needed for home frying?
A: Basic equipment includes: corn degerming machine (optional), drying equipment, household oil press, filtering device, etc.
Q: Can fried corn oil be eaten directly?
A: It needs to be fully filtered and precipitated to ensure there are no impurities before it can be eaten.
5. Health Benefits of Corn Oil
1. Rich in unsaturated fatty acids, which helps lower cholesterol
2. High in vitamin E, it has antioxidant effects
3. High smoke point (about 230℃), suitable for Chinese cooking
4. Cholesterol-free and good for cardiovascular health
6. Precautions
1. Pay attention to fire safety during operation
2. The pressing temperature should not be too high to avoid the production of harmful substances
3. Avoid direct sunlight when storing
4. Stop eating immediately if there is any peculiar smell or discoloration.
Through the above detailed introduction, I believe you have a comprehensive understanding of the process of corn frying. Although the process of making corn oil at home is more complicated, it can ensure the purity and quality of the oil and provide healthier cooking oil choices for the family.
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