How to filter dirty oil: Hot topics and practical guides on the Internet in the past 10 days
Recently, "dirty oil filtration" has become a hot topic in the fields of environmental protection and family life, especially in discussions about food safety and resource reuse. The following is the relevant content and practical filtering methods that have been hotly discussed on the Internet in the past 10 days, presented in structured data.
1. Statistics of hot topics in the past 10 days
| Ranking | keywords | Search volume (10,000) | Main discussion platform |
|---|---|---|---|
| 1 | Gutter oil filtration method | 45.6 | Weibo, Douyin |
| 2 | Household cooking oil reuse | 32.1 | Xiaohongshu, Bilibili |
| 3 | Environmentally friendly oil pollution treatment technology | 28.7 | Zhihu, WeChat public accounts |
2. Common methods of filtering dirty oil
1.physical filtration method: Use multi-layer gauze or coffee filter paper to filter impurities in oil, suitable for home kitchens.
2.adsorption method: Activated carbon or diatomaceous earth can absorb pigments and odors in oil and need to be left for 24 hours before separation.
3.centrifugation(Commonly used in industry): Impurities are separated through high-speed rotation, which has high efficiency but high equipment cost.
| method | Applicable scenarios | Time consuming | cost |
|---|---|---|---|
| Physical filtering | Small amount of oil used at home | 5-10 minutes | Low (<10 yuan) |
| adsorption method | Catering/Household | 24 hours | Medium (20-50 yuan) |
| centrifugation | food processing plant | 30 minutes | High (equipment＞2000 yuan) |
3. Testing standards for filtered oil
According to the latest "Hygienic Standards for Edible Oils and Fats", qualified filtered oil must meet:
4. Comparison of popular methods measured by netizens
| method | Filtering effect (5-point scale) | Operation difficulty | Recommendation index |
|---|---|---|---|
| Gauze + filter combination | 4.2 | simple | ★★★★☆ |
| Activated carbon adsorption | 4.5 | medium | ★★★★★ |
| cryoprecipitation | 3.8 | more complex | ★★★☆☆ |
5. Things to note
1. It is recommended to discard oil that has been filtered more than three times to avoid the accumulation of carcinogens.
2. Industrial grade filtration requires a "Waste Grease Treatment License".
3. Data from Douyin’s popular challenge #FilterOilCompetition# shows that 82% of users are more concerned about the safety of filtered food than the cost.
Through the above methods and data reference, users can choose a suitable dirty oil filtration solution according to actual needs, which not only protects health but also practices environmental protection concepts.
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