An article in The Guardian says that “Organic food and drink sales rise to record levels in the UK”. That is good news but there is still scepticism about the value of organic food. Some say it is too expensive others argue that it is a con. The thing that finally convinced me it was the only food i wanted to eat was finding the information about pesticide residues in food. That was in the early 1990s when the government stipulated a ‘safe’ minimum amount of residue for each common pesticide and fungicide. For many years two government scientists, McCance and Widdowson, produced a report of the amounts of each pesticide found in fruit and veg that they bought from supermarkets. There were items that exceeded the allowed maximum and this was included in a yearly report.
What was not recognised was that most crops received multiple applications of different products. There might be applications of fungicide, then pesticides for insect infestation followed by weed killers. There was never any limit for cocktails of chemicals.
Then in a drought year we heard about high levels of chemicals in carrots and the government told us to wash them. The problem is that modern pesticides are systemic. That means they are taken up into the cells of the plant and cannot be removed, even by fancy veg washing products. And peeling does not help as the chemicals are in every cell.
Those of you of a certain age will remember crops of corn slowly turning a golden colour in late summer and then the harvest that followed when the weather was right. Now, cereal crops and potatoes are ‘sprayed off’ so that harvest can happen at set times. On corn they use weed killer and acid on potatoes to kill the tops.
Modern farms are part of the supermarket supply chain and if they are contracted to supply 100 tonnes of potatoes in the first week of September that is what they must do or lose the contract. It is supermarkets who control agriculture as it must be part of a production line to ensure continuous supply. There is no such thing as seasonal fruit and vegetables, we want everything all the time and we it now!
There have been arguments about organic produce being more nutritious. An idea fiercely contested by conventional farming. A study by Newcastle University found that organic milk was higher in nutrients. Such research is not so common now as universities rely on external funding.
Other groups round the world looked at simple indicators of quality in veg like the Brix reading. Although this is a simple test that anybody can do it does provide an overall indication of quality. I have a brix refractometer bought several years ago when experimenting with different growing techniques and did a random test on carrots last week. Comparing a standard carrot from Waitrose with one in our box from Riverford Organics. The results are clear
It is not all about pesticides as non-organic, or factory farming, methods also have an effect on soil, our greatest natural asset. Since the 1940s the emphasis has been on increasing production through the widespread use of chemical fertilisers. While the use of N-P-K (Nitrogen Phosphorous Potassium or Potash) does give rapid growth, it produces plants that do not have the strength to withstand insect attacks. Previously farms mixed and crops on land manured by the animals. That was a natural cycle and produced rich healthy soil.
A somewhat ironic side effect of not applying organic matters to soil such as compost or manure is that it results in thin soils which are easily eroded. Farmers use high cost inputs to get bigger, quicker crops and lose their soil in the process.
There is growing evidence that the strongest, healthiest and most nutritious crops are grown on good quality soils that provide the whole spectrum of minerals and nutrients. That is not surprising! The fact that the nutritional value of food has declined since the 1940s is overlooked see this report from 2002 And this one from McCance and Widdowson
This is why I decided to buy organic food nearly 30 years ago. Some will argue it is an expensive luxury but now the price of organic veg is the same or only slightly more than the other stuff. In the end it is your choice but remember one thing, your body is you, if you look after it and feed it well you will feel the benefits. Like I said to a man one day if you bought a top of the range luxury car would you put paraffin (kerosene) in the tank to save money. He told me not to be so stupid, so, I asked him why did he put the cheapest possible food down his throat. My only conclusion was that he valued his new car more than he valued himself.
The answer? Grow you own and if not have it delievered to your door. We use Riverford as we no longer able to grow much of our own food.