The Importance of Temperature

Temperature – One of the most essential measurements of our existence. But how many of us stop and think about the importance of temperature?

From measuring our air temperature outdoors to making chocolate, temperature is an important factor in our lives.

What is Temperature?

In the most straightforward terms, temperature is an indicator of how hot or cold something is—the measure of hot and cold.

More specifically, it is a measure of the average kinetic energy of the particles in an object, which is a type of energy associated with motion. The more heat, the faster the particles move. However, how hot is hot and how cold is cold? This is determined by measuring temperature in degrees with an instrument known as a thermometer.

Why is Temperature Important?

Temperature is important because we rely on it for so many aspects of our lives but broadly speaking our comfort and safety. These are numerous, but a few are listed as follows.

Food

Temperature holds significant importance for food manufacturers as well as individuals who are merely looking to cook at home. Whether barbecuing, broiling, frying, or waiting for water to boil, the proper temperature is important in preparing a meal; it affects the quality, flavor, and freshness of food.

Proper temperature is crucial for both the storage and cooking of food. Temperature is a major factor that controls the formation of bacteria (microorganisms) in food.

For safety, fresh foods must be held at suitable cold temperatures to restrain bacterial growth or cooked to temperatures high enough to kill harmful microorganisms.

This applies especially to meat, poultry, and egg products. Therefore, it is essential to use a food thermometer to prevent undercooking, and as a result, prevent food borne illness. These illnesses include Salmonella, Campylobacter, E. coli O157:H7, and Listeria monocytogenes.

For storage, use an appliance thermometer to be sure the temperature of the refrigerator is constantly 40 °F (4.4 °C) or below and the freezer temperature maintains 0 °F (-17.8 °C) or below.

For more information on cooking meat, read the article, The Healthiest way to Cook Meat on this website.

Beverage

In beer and winemaking, temperature plays a major role in the quality of the final product. Atmospheric temperature alone could have a positive or negative effect during the winemaking or brewing process, as well as the temperature at which fermentation takes place.

In milk pasteurization, the temperature is essential for ensuring the removal of the harmful pathogens listed above (i.e. Listeria, Salmonella, and Escherichia commonly known bacteria, E. coli).

Agriculture

In agricultural and greenhouse applications, the temperature can be the variation between life and death for food, plants, and other cultivated products. Should a greenhouse produce too much heat, plants can become stressed or even die

As the fall temperature gradually changes downward, it is essential to remember the important effect that temperature has not only on our health but also on the quality of foods and beverages we make and consume.

Medical-MedicineThe Importance of Temperature - Medicine

Temperature plays a crucial role in medical care for both humans and animals. Our overall health is often reliant upon the correct temperature in many ways as well.

Maintaining proper temperature levels in medical cold storage areas is vital. Incorrect temperatures can negate the medications or vaccines kept in medical refrigerators. Excess temperatures and high humidity are the two most crucial factors in drug deficiency. When subjected to these conditions, the medications can weaken. Furthermore, medical institutions can face fines and or penalties if their medical refrigerators are not performing properly as this poses a health hazard.

The CDC (center for disease control) carried out a study that addressed the improper storage and handling of vaccines. Unfortunately, 76 percent of the chosen 45 providers in the study had some of their vaccines exposed to temperatures that were not within the required cold chain range for a period-of-time. This study prompted the CDC to make changes and illuminations in guidance and requirements for vaccine care.

HealthThe Importance of Temperature - Health

 

 

 

 

 

 

 

An important barometer for health is body temperature. What we know as body temperature is the average temperature of the human body. In humans, this average temperature is estimated at around 97 to 99F or 37°C, although this can vary depending on the time of day. This is measured with a body thermometer.

Body heat is generated by the normal metabolic processes that occur within the body. The majority of our body heat is created in organs, for example, the liver, brain, and heart. Additionally, the muscles create a lot of heat, especially when they are active. The hypothalamus and the autonomic nervous system continuously adjust the complex activities in the body so the body temperature is generally near the normal range.

When the body temperature rises above the normal range, this is usually an indication of a fever caused by some kind of inflammation. This is an indication of the body’s defense system taking action.

A fever is a reaction to a specific-disease stimuli. The body regulates its temperature to support the body’s own defense mechanisms. Fever is the most widespread form of a disease-related (pathological) increase in body temperature.

When the body temperature lowers below the range (below 95F), it is indicative of a condition known as hypothermia and is a medical emergency.

Measuring body temperature is very crucial in medicine. A number of diseases are recognized by a change in body temperature. With other illnesses, the track of the disease can be monitored by measuring body temperature. This allows the physician to analyze the efficiency of treatments based on body temperatures.

Temperature is crucial, as it is something we feel. Adjustments have to be made to our housing and clothing to it if we live in different places or at different times of the year. If we get too cold or too hot, survival is impossible. However, the heat from the sun also evaporates water
from the ground and drives the water cycle. Water is a necessity.

The EnvironmentThe Importance of Temperature - The importance of temperature on the environment

Temperature is among the most all-encompassing and crucial physical factors in the environment. Elements such as viscosity or fluidity, and changes in conditions from solid to liquid to gas, depend on temperature.

The temperature of the earth has an extraordinary impact on our environment. Our use of greenhouse gases has caused the earth’s temperature to rise. As the Earth warms up, heat waves are becoming more frequent in some places, including the US. Heat waves occur when a region experiences exceedingly high temperatures for a number of days and nights.

Heat waves can be hazardous, and cause such illnesses as heat cramps and heat stroke, or even death.

Warmer temperatures can additionally lead to a chain reaction of other changes around the world. This is because increasing air temperature also affects the oceans, patterns in the weather, snow, and ice, and plants animals, and humans. The warmer it becomes, the harsher the impact is on people, and the environment will be.

Below are the major effects that higher temperatures can have on people and the environment:

  • Agriculture
  • Energy
  • Forests
  • Health
  • Plants, Animals, and Ecosystems
  • Recreation
  • Water Supplies

On the other hand, temperatures in the other direction can have a strong impact on the environment as well.

For starters, the average number of deaths ascribed to cold is considerably higher than the number ascribed to heat.

Just as it is with warmer temperatures, colder temperatures long-term can affect a host of life’s necessities.

TransportationThe Importance of Temperature - The importance of temperature for transportation

There is a variety of transportation effects due to prolonged cold weather. Diesel engines are stressed and, often fuel gels in extremely cold weather, which has an impact on trucking and rail traffic. Rivers and lakes can freeze, halting barge and ship traffic. Consequent ice jams stress bridges and can close major highways.

Cold temperatures take their toll on vehicle batteries. Shear cold temperatures stress metal bridge structures. Transportation losses for one extreme winter totaled $6.5 billion. That amount would be higher in today’s dollars.

Farming

The Importance of Temperature - The importance of temperature for farming
Soil temperature is crucial for optimum harvests

Cold temperature impacts on agriculture are usually discussed in terms of frost and freeze impacts early or late in the growing seasons. Zero temperatures and duration of extreme cold can have destructive effects on trees and winter crops as well.

Prolonged cold snaps can affect livestock that is not protected from the frigid temperatures. In one winter of 1983-84, a single cold snap around Christmas damaged over $1 billion of the citrus crop in Florida. In Louisiana, 80% of its citrus crop was destroyed. Tennessee lost an estimated $15 million in agriculture losses. Texas additionally encountered hundreds of millions of dollars in crop ruin.

Energy

Energy consumption rises significantly during extremely cold weather. This includes increases in the costs of electricity, fuel oil, and coal.

Water Resources and Infrastructure

The Importance of Temperature - The effects of freezing temperatures
Prolonged sub-freezing temperatures can play havoc on infrastructure.

Prolonged extreme cold temperatures will cause significant ground freezing problems, especially if there is little snow cover. Buried water pipes can burst and cause massive ice problems and loss of water pressure in metropolitan areas.

This creates an assortment of public health and public safety problems. For example, one case of a broken water main in Denver, Colorado required the total evacuation in sub-zero temperatures of the medically fragile patients of the Veteran’s Hospital. Other similar cases of broken water mains have caused the shutdown of subway systems and financial centers.

Schools are generally closed during extreme cold snaps to protect the safety of children who wait for school buses affecting the education process.

As you can see, temperature has a tremendous impact on our environment and well-being and an extreme in either direction can have a divesting impact on our quality of life. Therefore, we must do all we can to avoid having an adverse effect on our climate.

All questions, comments, and concerns are welcomed below.

Good health!!

 

 

 

 

 

 

The Healthiest Way to Cook Meat

Meat is an important component of western diets. It tastes good; it is satisfying and is an excellent source of high-quality protein and other crucial nutrients. However, different methods of cooking can have an effect on the quality and healthiness of meat. So, what is the healthiest way to cook meat? The purpose of this article is to reveal an answer to that question.

Temperature and Meat

As mentioned earlier, meat is an excellent source of protein. These sources contain many nutrients and include chicken, lamb, and beef, and others. On the other hand, these meats can also comprise bacteria, including Salmonella, Campylobacter, E. coli O157:H7, and Listeria monocytogenes, which can bring about serious foodborne illnesses. For this reason, it is important to cook meat to safe temperatures before eating it (Reference link).

Food safety experts affirm that meat is deemed safe to eat when cooked for a long enough duration and at a temperature high enough to kill harmful organisms.

So how can we know when the meat is cooked long enough to be safe? The key is not appearance, odor, or taste. The key is the internal temperature. Meat needs to reach the proper internal temperature to kill foodborne bacteria. The internal temperature of meat cannot be determined by external methods.

Studies have shown that using a food thermometer is the sole way to determine if harmful bacteria have been destroyed. However, despite that, only about 15% of people consistently use a food thermometer.

Different cooking methods and different meats require different safe internal temperatures. A reliable and accurate meat thermometer is a handy tool to know for sure if the proper temperature is attained by taking out the guesswork. It can also avoid overcooking which can rob meat of the juices and flavor often desired.

Cooking meat to the proper internal temperature is one of the healthiest ways to cook meat.

It is important to note that different meats require different safe internal temperatures. This will be covered in a subsequent article on this website.

Different Cooking Methods

How we cook our meat matters. Cooking breaks down any tough fibers and connective tissue in meat, making it easier to chew and digest. It additionally leads to better nutrient absorption.

On the other hand, cooking meat can reduce its antioxidant capacity, which depends on how it is cooked and for how long. (Reference link).

Another fact to note is nutrients can also be lost during the process of cooking meat. The extent to which this occurs is strongly influenced by the cooking method.

What’s more concerning is heating meat to high temperatures for long periods can lead to the formation of harmful compounds that may increase disease risk.

Therefore choosing cooking methods that minimize nutrient loss and produce the lowest amounts of harmful chemicals can maximize the health benefits of consuming meat.

The point to remember is that even though cooking meat makes it easier to digest and kills harmful germs, it can also reduce the nutrient content and create harmful chemicals that potentially increase disease risk.

Next, a look at how different cooking methods affect the meat we eat.

Roasting and Baking

Both roasting and baking are similar forms of healthy cooking using dry heat. Dry heat cooking differs from moist heat methods, which is where meat is cooked in water or another liquid.

The term roasting usually refers to cooking meat in a large pan known as a roasting pan. A roasting pan frequently incorporates a rack to keep the meat elevated above the juices that drip down as it cooks.

This can also be done with a device that allows meat to cook on a slow-turning spit known as an oven rotisserie. This method is usually reserved for cooking large pieces of meat or entire animals, such as chickens or turkeys.

In comparison, baking is generally used for chicken, poultry, or fish rather than red meat. The meat is cooked in a baking dish that can be enclosed or open.

Temperatures for roasting and baking range from 300–425°F (149–218°C) and cooking time may fluctuate from 30 minutes to an hour (1) or more, The healthest way to cook meat - roasting meatdepending on the type and cut of meat.

In general, roasting and baking are healthy forms of cooking that result in minimal losses of vitamin C.

On the other hand, during long cooking times at high temperatures, up to 40% of B vitamins may be lost in the juices that drip from the meat.

These juices can be gathered and served with the meat, which is sometimes called au jus on menus. This can help minimize nutrient loss.

Grilling and BroilingThe Healthiest way to Cook Meat - Grilled and Broiled Meat

Grilling and broiling are especially similar dry heat, high-temperature cooking methods.

Grilling involves cooking with a heat source directly below the food, for example, an open grill or barbecue. Grilling temperatures usually range from 375–450°F (190–232°C).

With broiling, the heat source comes from above, such as the broiler in an oven. Broiling occurs at very high temperatures, typically 500–550°F (260–288°C).

Grilling is particularly popular because it imparts a delicious flavor to meat, in particular steaks and burgers.

Unfortunately, unbeknown to most, this method of cooking often leads to the production of potentially harmful chemicals.

When the meat is grilled at high temperatures, the fat melts and drips onto the grill or cooking surface. This in turn creates toxic compounds called polycyclic aromatic hydrocarbons (aka PAHs) that can rise up and seep into the meat (Reference link).

PAHs have been linked to several types of cancer that include breast and pancreatic cancer (Reference link, Reference link, Reference link, Reference link).

However, studies have discovered that removing drippings can reduce PAH formation by up to 89% (Reference link).

Another concern with both grilling and broiling is that they promote the formation of compounds known as advanced glycation end products (AGEs).

AGEs have been linked to an increased risk of several diseases, including heart disease, kidney disease, and skin aging. (Reference link, Reference link).

They are produced in the body as by-products of a chemical reaction that occurs between sugars and proteins. They can additionally form in foods during the course of cooking, especially at high temperatures.

One study found that broiled beef had higher levels of AGEs than beef cooked by other methods (Reference link).

Keeping cooking times short and removing meat from high heat prior to it becoming charred can help reduce the amount of AGEs produced.

Poaching, Stewing and SimmeringThe healthest Way to Cook Meat - Poaching, Stewing & Simmering

Poaching, stewing, and simmering are similar moist heat methods of cooking.

Although cooking times are generally longer than for many other cooking methods, this is because temperatures are lower.

The three methods are classified by the temperature of the cooking liquid:

  • Poaching: 140–180°F (60–82°C)
  • Stewing: 160–180°F (71–82°C)
  • Simmering: 185–200°F (85–93°C)

Prolonged cooking in liquids at temperatures above 200°F (93°C) can cause meat proteins to toughen.

Poaching entails shorter cooking times than stewing or simmering and is kept for delicate foods like duck, chicken and, fish,.

Research has shown that cooking with moist heat at low temperatures can minimize the formation of AGEs (Reference link).

On the other hand, the lengthy cooking times for stewing and simmering can lead to a loss of B vitamins, nutrients that are typically high in meat and poultry.

Up to 60% of thiamine, niacin, and other B vitamins may be lost from the meat as its juices runoff. Luckily, consuming the meat’s juices as part of a stew or soup can significantly reduce these vitamin losses. [FOR MORE INFORMATION ON B VITAMINS]

Stir-Frying and Pan-fryingThe Healthiest Way to Cook Meat - Pan-fry and Stir-fry Meat

Stir-Frying and Pan-frying both refer to cooking meat with fat in a skillet, wok, or pot.

Throughout stir-frying, food is continuously flipped or stirred with a spatula as it cooks, while pan-frying usually does not involve this type of constant movement.

While these methods use high heat, cooking times are very short, which helps maintain tender meat with good flavor.

These two cooking techniques also promote the retention of nutrients and are less likely than many other methods to cause cholesterol in fatty meats to oxidize. Oxidized cholesterol is considered a risk factor for heart disease (Reference link).

On the other hand, Stir-Frying and Pan-frying have some drawbacks.

Heterocyclic amines (HAs) are compounds capable of causing cancer. They are produced when the meat reaches high temperatures while cooking. Studies have established that HAs frequently transpire during the pan-frying of meat and poultry

Marinating or soaking meat in mixtures containing fruits, vegetables, herbs, and spices high in antioxidants can help reduce the formation of HAs. One study found that adding herbs to a marinade decreased HAs by about 90% (Reference link, Reference link).

Also, it’s important to choose a healthy cooking oil when pan-frying or stir-frying. For more information on cooking oils, read the article, Facts about Cooking Oil on this website.

Most vegetable and seed oils are high in polyunsaturated fats that are prone to damage at high temperatures. Heating these oils also promotes the formation of oxygenated aldehydes, potentially cancer-causing chemicals found in cooking fumes (23).

Palm oil and olive oil have been shown to develop fewer aldehydes than vegetable and seed oils during stir-frying and pan-frying.

Other healthy cooking oils that are steady at elevated temperatures include coconut oil, lard, and tallow.

Deep-FryingThe Healthiest way to Cook Meat - Grilled and Broiled Meat

 

 

 

 

 

 

 

 

 

 

Deep-frying involves completely immersing food in fat or oil while cooking.

Meat and poultry are sometimes, although not always, breaded or coated in a batter before being deep-fried.

The benefits of deep-frying meat include improved flavor, crunchy texture, and excellent preservation of vitamins and minerals.

However, it is important to note that this cooking method also causes potential health risks.

Deep-frying has been shown to result in higher levels of toxic by-products like AGEs, aldehydes, and HAs than most other cooking methods.

The amount of fat absorbed by the meat during deep-frying can also be considerable, especially if it is breaded or battered.

Additionally, the unhealthy vegetable and seed oils usually used for deep-frying can do more than increase calorie intake. This method of cooking has been linked to increased cancer and heart disease risk (Reference link, Reference link).

Slow CookingThe Healthest Way To Cook Meat - Slow Cooking Meat

Slow cooking involves cooking for several hours in a slow cooker, also known as a Crockpot. This is basically a large, electronically heated ceramic bowl with a glass lid.

Cooking temperature settings on a slow cooker range from 190°F (88°C) for the low setting to 250°F (121°C) for the high setting. These minimal temperatures minimize the formation of potentially harmful compounds.

The chief advantage of slow cooking is its ease and convenience. Meat can simply be seasoned and placed in the slow cooker, allowed to cook for six (6) to eight (8) hours without requiring it to be checked, then removed, and served at dinnertime.

Slow cooking is comparable to simmering and stewing meat. Unfortunately, it additionally results in the loss of B vitamins that are released in the juices as the meat cooks. There is always a catch!

Slow cooking tougher cuts of meat, such as brisket results in them becoming tender, and flavorful.

However, it may sometimes cause poultry and other delicate meats to become overly tender and soggy, particularly with longer cooking times.

Pressure CookingThe Healthest Way to Cook Meat - Pressure Cooking Meat

Pressure-cooking is a form of moist heat cooking that has returned to popularity in current years because it permits food to cook very rapidly and uses less energy than other methods.

A pressure cooker is a pot with a sealed lid and a safety valve that manages the pressure of steam that builds up inside.

The steam’s pressure raises the boiling point of water from 212°F (100°C) to as high as 250°F (121°C). This higher heat yields faster cooking times.

The main advantage of cooking in a pressure cooker is that it significantly decreases the time it takes to cook meat or poultry.

What’s more, pressure-cooking directs to less oxidation of cholesterol than some other cooking methods, provides flavor and tenderness to meats, and minimizes vitamin losses.

**One disadvantage is that if the cooker needs to be opened to check the food for doneness, this temporarily stops the cooking process.

Also, similar to slow cooking, pressure-cooking can result in some types of meat becoming overly soft.

Sous VideThe Healthest Way to Cook Meat - Sous Vide

Sous vide is a French term that when translated means “under vacuum.”

In sous vide, meat is sealed in an airtight plastic bag and cooked for one (1) to several hours in a temperature-controlled water bath.

With certain varieties of meat, such as steak, sous vide cooking is followed by quick pan searing to provide a brown crust. Some crunch is good!

Sous vide employs the lowest temperature ranges of all cooking methods: 130–140°F (55–60°C). Cooking at these temperatures can help reduce the formation of possibly harmful chemicals.

Additionally, because the cooking time and temperature can be exactly controlled, the meat is reported to be more tender and evenly cooked than meat cooked with other methods.

Also, all juices produced during cooking remain in the bag with the meat, resulting in better retention of B vitamins and other nutrients.

On the downside, cooking steak sous vide may take an hour or more, which is considerably longer than grilling. But conversely, the meat can be safely held at the desired temperature for several hours.

What’s more, according to one manufacturer, all sous vide cooking bags have been independently tested and found to contain no bisphenol A (BPA) or other potentially harmful chemicals.

What Is the Healthiest Way to Cook Meat?

Strictly from the standpoint of health, the best ways to cook meat are slow cooking, pressure-cooking, and sous vide. Then again, all methods of cooking meat have advantages as well as disadvantages.

Some of the most popular ones, which include grilling and deep-frying, are cause for concern due to the high levels of toxic by-products they create.

Poaching and other forms of moist heat cooking at lower temperatures produce fewer of these compounds but may result in the loss of vitamins.

It is best to choose healthy cooking methods, including slow cooking, pressure-cooking, and sous vide, when possible.

However, for individuals who love to grill or deep-fry their meat, they can reduce the risks by removing the drippings by placing the meat on a paper towel to drain, avoid overcooking the meat, and using fats and marinades that are healthy.

Remember, no matter what method is chosen,be certain of the proper internal temperature!

It would be great to hear from you with any questions, comments, or concerns below.

Good Health!!