Saturday, August 8, 2015

Processed Foods: The good, the bad, and the ugly


   The first step in processing foods is the act of harvesting. So, saying that a person doesn't like processed foods is a bit on the silly side. Picking an apple off of a tree or shucking an ear of corn is processing the food.

   The next stage of processing involves changing the food physically. Food is cut up. It is ground. It is juiced. It is shredded. If it doesn't look the same as when it was harvested, then it has been changed physically.

   Now we come to the part that involves chemical change. This isn't always what people consider to be chemical change. Drying something in the sun will involve chemical (and physical) changes. Fermenting a juice into an altered liquid that contains alcohol is a chemical change. Applying heat and cooking a food is a chemical change. Putting something in a different substance (even water) will often -- but not always -- initiate a chemical change.

   Processing food makes it easier to eat -- or more interesting to eat -- or makes it easier to store for longer periods of time. These are not bad goals. So, what is the big deal about processed foods? Why would anyone object to processed foods.

   As usual, the problems arise out of the details -- the hows, whats, and whys. Harvesting isn't usually considered a big problem -- unless it is done in a way that has "side-effects". For example, some foods are most easily harvested by starting a big fire and sifting through the remains. Other foods might be harvested by killing the main plant when only a small part is going to be used for food. Finally, there is the background issue (not to be discussed at length here) of production which is necessary for harvesting to occur.

   Physical processing takes energy. If physically preparing food is part of the daily routine then it is a closed system -- energy given by eating the foods is used in the preparation of those same foods. However, when we buy something already processed then we are also requiring energy to be used for the preparation as well as transport. That energy is likely to include non-renewable energy sources.

   Now comes the most controversial part of processed foods -- chemical changes. The previously mentioned changes would usually be considered "natural" (although they are not all likely to occur without some intervention by some other living entity). When "artificial" processing (as mentioned in another blog, these terms don't have as distinct of a difference as people often seem to think) is involved, the food will change in ways that cannot always be predicted.

   Edible items (we'll continue to call them foods) can be produced from inorganic (not originally alive) components. During the processing of foods, additives can be included that change flavors (this can include spices and herbs -- but also inorganic chemicals) or make the food last longer (usually called preservatives), or become more addictive (added sugars, salt, certain chemical substances) to increase marketing and sales. These types of processing can make the food less healthy -- and this is the big deal about processed foods. Commercially prepared processed foods are often less healthy than fresh or personally processed foods.

   So, why do people buy processed foods -- and why are people buying a larger and larger percentage of their food in the form of processed foods? I would categorize that in the regions of time, convenience, marketing susceptibility, and (for many items) monetary savings. Using processed foods saves time -- it reduces the time to prepare, the time to consider the recipe, and usually time to cook or put on the table.

   In the case of processed fresh fruits and vegetables, you will probably be paying quite a bit extra to have someone process them for you -- but you may save, if you are single, because you are only buying the amount that you will eat. This is a cost trade-off.

   In the case of stored (frozen, refrigerated, canned, or packaged) processed foods, it is often true that it will cost you less to buy processed food from the store. This is because the food processing company pays less for the ingredients because they buy in huge quantities and because the energy costs in labor and machinery are less than what it would take for you to prepare. The actual costs of the food may amount to 1/4 of what you would have to spend to prepare it personally. With the markups of transportation, storage, and profits at different stages, the final price is still often less than what you could realistically prepare. So, it ends up being a choice concerning time and quality.

   Marketing susceptibility is a huge topic (and one on which I have briefly discussed in other blogs). This is buying products that you KNOW are not good for you and which may not even taste as good as healthier alternatives -- but if convinced that it is the popular thing to eat (in the popular quantities) then you may choose to buy and consume it.

   The "ugliest" part of commercially processed foods is the addictive parts. Processed sugar (including High Fructose Corn Syrup) is an addictive and unhealthy substance. It can be found in many processed foods including canned vegetables. Check the ingredient list! Salt is a flavor enhancer but, for some people, it can be hard on the body in excessive amounts. Governmental control agencies have stopped the addition of such substances as cocaine, coca leaves, and other known addictive chemicals (yes, they did use such at one time) into foods but there isn't enough oversight to make sure that other newer chemicals do not have addictive or destructive effects.

   The bottom line is that processing food is a long, and reasonable, thing. Local processing is probably always healthier than commercial processing but there are reasons why people choose to buy commercially processed foods -- and why they take more and more shelf space in the supermarkets and grocery stores.

   Do you make use of processed foods? What kinds do you purchase? Do you check the ingredient lists when you make choices? Does it matter to you if you are preparing for one or two versus preparing for a large family gathering?

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