Our lives are inseparable with cooking oil. Every day we consume cooking oil through stir frying, sauté, deep frying and dressing our food. Not only does it act as a medium for heat delivery, cooking oil also boosts flavour and makes essential nutrients for the human body. Learning to choose the right cooking oil and mastering the proper way of application is extremely important. Scandals outbreak of gutter oil and adulterated oil in recent years induces public fear in cooking oil consumption.
Test-it™ sampled 115 types of cooking oil in the market, analyzed with world leading biological testing technology Testing 2.0. The safety tests conducted in professional testing laboratories shows that 49 gets the Green Fish (Excellence), 23 gets the Yellow Fish (Basic) and 43 gets the Red Fish (Sub-Optimal). Contrary to common believe, the oil perceived as more healthy actually show less favourable results. Olive oil and coconut oil scored less than their counterparts. This also applies to European brands compared to oil from other origins. Expensive oils do not necessarily means safer.
According to World Health Organization and United Nations, choosing the wrong product could cause cancers, infertility, precocious puberty, obesity and neurological disorders. Test-it™ provide clear, direct test reports with lifestyle tips. Equipped with scientific and objective information, consumers can make safer purchasing choices. Stay tuned for more interesting facts.
The results of olive oil and coconut oil (often perceived as healthy alternatives) are below average in this test. Among the 5 tested coconut oil samples, only 1 (20%) obtained Green Fish. 2 (40%) obtained Yellow Fish and 2 (40%) obtained Red Fish.
Among the 44 tested olive oil samples, only 7(19.15%) obtained Green Fish. 7(19.5%) obtained Yellow Fish and 29 obtained Red Fish.
Adulteration is the possible cause. It had been uncovered by the media that vast majority of Italian oil (80%) were adulterated. 35% of olive oil in China are imported from Italy. According to our test, the results of Italian oil are below average.
The median price of the 115 samples is: 86.40 HKD/L.
One third falls in the price range of 50 HKD/L : 30 Green Fish, 10 Yellow Fish, 4 Red Fish.
One third fellas in the price range of 130 HKD/L: 13 Green Fish, 8 Yellow Fish, 10 Red Fish.
The Most expensive oil costs 140 times of the cheapest oil.
The cheapest oil costs 14.78 HKD/L, the most expensive oil costs 2,084 HKD/ L.
The standard for cooking oil tests under the existing regulations : BaP, total aflatoxin , acid value, peroxide value, total polar material, heavy metals: As, Cd, Cr, Hg, Pb, Sb, Sn.
Yet the existing regulations failed to reflect the following harmful substances that could potentially be found in cooking oils:
Toxic lipid oxidative derivatives，Pesticides ，Phyto toxins，Preservatives.Test-it™'s world leading technology Testing 2.0 can cover the above harmful substances.
Conventional chemical test 1.0 and the basic regulations only reflects the basic requirement for a product’s market entry. The mission of Test-it™ is to further improve product safety with world leading technology Testing 2.0. Though horizontal analysis in similar products, Test-it™ provides consumers with information and data for better consumer choices. Products are categorised as Green Fish, Yellow Fish and Red Fish according to test results.
Test-it™ has developed a high standard as a third party consumer goods evaluation platform. Developed by an experienced research and development team and an advisory board of toxicology experts from 12 countries, Test-it™ references from the global standard of China, EU, the U.S., Japan, WHO and OECD. With the application of fish embryo toxicity (FET) test technology (Testing 2.0), The standard of Test-it™ could be higher than the existing regulations.
Market research and product
Test-it™ selected 115 best selling cooking oil brands by analysing sales and attention span from the Test-it™ fans group. The research is conducted in both e-commerce platform and physical store.
Purchasing Method and Channel
All tested samples were purchased by Test-it as a common customer. Samples were purchased from the brands’ official beauty counters and their globally recognised sales channels ( official flagship stores ) on major E-commerce platforms ( JD, Tmall, Koala, Amazon) . All sample were purchased anonymously.In order to maintain neutrality and objectiveness, Test-it reports will not accept products submitted by manufactures.
1. Transgenic medaka embryo testing for chronic toxicants
2、Zebrafish embryo testing for acute toxicants
Vitargent adopts an exclusive ingredients screening system comparing restricted and high risk ingredients regulated by the CODEX Alimentarius of the WHO&FAO, USFDA, EU, Food and Drug Administration of Japan and China to further enhance product safety.
Ingredient Screening: Products must not contain any chemicals that are associated with health complications, eco-toxicity, or contamination by scientific safety evaluations, or are banned by the following governmental agencies and authoritative bodies.
US: USFDA’s ‘Summary of colour additives for use in the United States in foods, drugs, cosmetics, and medical devices’, ‘Prohibited & Restricted Ingredients’, and 'Everything Added to Food in the United States (EAFUS)'.
EU: European Commission Nos. 1333/2008, 1223/2009, 1129/2011, and 1130/2011, and Candidate List of substances of very high concern for Authorisation (SVHC) by European Chemicals Agency (2017).
China: China FDA’s ‘Safety and Technical Standard for Cosmetics’ (2015), and 'National food safety standards: food additive standard (GB2760-2014).
Japan: Japan’s ‘Standards for Cosmetics’ (2000), and 'Standard for use of food additives (2017)
WHO&FAO: CODEX Alimentarius
Results Analyzing Method
|Category||Medaka embryo testing for chronic toxicants||Zebrafish embryo testing for acute toxicants||Ingredients check|
|Pass WHO guideline on Acceptable Daily Intake (ADI)||No LC50 (50% fish death) detected at highest concentration||No banned or high concernedingredients|
||Pass WHO guideline on Acceptable Daily Intake (ADI)||LC50 detected within highest centration to Vitargent category-based reference line||No banned but contain high concerned ingredients|
||Fail (reading exceed ADI or over 50% fish death at Vitargent category-based reference line )||LC50 detected below Vitargent category-based reference line||Contain banned ingredients|
|Hong Kong Technological Achievement Award(2014)||Davos Global Innovation Pioneer (2015)||Geneva International Inventions 43rd Grand Prix Winner (2015)||World Intellectual Property Organization Gold Medal (2016)||APEC & GIC Future Maker (2016)||Unreasonable Impact (2017)|