The food industry is our inevitable companion throughout our life.
It is creating more and more new products, improving technology and brainwashing us. 

Well, the latter is not necessary because we don't use our brain when deciding what to fill our stomach with. We definitely use something else, otherwise we would never be able to enjoy  a mixture of fried sugar, phosphoric acid, corn syrup, caffeine and glycerin.  

The industry is developing rapidly so we get more and more affordable food and no longer die of hunger. 

Now we are dying of obesity, diabetes, cancer and heart disease by consuming sugar, gluten, transgenic fats (including fake Olive oils obtained by heating), solvents, artificial flavours, colorants and other rubbish. 

Year after year we can see more and more cheap food in supermarkets.
We don't even try to think about where it comes from and why it is so cheap. 
We just want more and more cheap food...  

Every month, thousands of people google cheap olive oil, good cheap olive oil, cheap extra virgin olive oil and other nonsense. Sometimes they even search the best cheap olive oil. Why? To get the best cheap cancer in 10 years?  

Why do we decide to buy something cheap when similar products differ in price at times?

Maybe we think something like this: “Olive oil for 6 euros is good; anything that is more expensive is perhaps a little better, but I don’t want to overpay ”.
Just like buying a camera: “20 megapixels is enough for me, I don’t want to overpay”. 

No, it doesn't work that way! The price of olive oil does not correlate linearly with its health benefits.

Yes, starting from a certain level this is exactly how it works: the more expensive the olive oil, the better it is. And yes, 18€ olive oil for is better than olive oil that you buy for 12 euros. 

However, what you are buying for 6 euros is not just less healthy olive oil. It's not olive oil at all, it is poison! 

Hexane. They use it to press more olive oil from olives to get more profit. 

And the saddest thing is that it is a delayed-acting poison, quietly killing us inside for many years. Like many other things we enjoy  every day. 

You may say: "That's all very well, but what to do? Not everyone can afford to buy olive oil for 25€". You know, olive oil is not that vital and nobody dies because of its absence. So it's better to live without it or buying it less often than consuming carcinogens. 

Below you can see a small excerpt from the book Extra Virginity by Tom Mueller. Here is a detailed explanation of how is produced Cheap Olive Oil that we can buy in the supermarket. 

 “Front-end loaders dump the pomace into a large hopper, from which it moves into a steel tube heated by the furnaces, that rotates slowly until most of the moisture in the pomace has evaporated. The dried pomace is transferred into tall silos and drenched with hexane, an industrial solvent. After the residual oil dissolves into the hexane, leaving the pomace, a blast of steam as loud as a cannon-shot drives the mixture of solvent and oil into a separate tank, where it’s heated to evaporate off the hexane. What’s left is a dense, black liquid known as crude pomace oil… 
… Before this oil can be sold as food, it’s piped into a refinery in an adjoining building for desolventization, deacidification, deodorization, degumming, and other chemical processes. The resulting clear, odorless, tasteless fat is blended with a small quantity of extra virgin olive oil to give it flavor, and is sold as “olive pomace oil.”
This substance is a poor cousin to extra virgin olive oil, with a dubious past. From time to time, Italian and EU health inspectors have detected toxins, mineral oil, and carcinogenic material in pomace oil; there have been Europe - wide health alerts for contaminated pomace oil, leading to product recalls and confiscations.” 

The book was published in 2011. 
Has something changed? It’s even worse now.