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Disadvantages of using plastic bags
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“Drying
In ancient times the sun and wind would have naturally dried foods. Evidence shows that Middle East and oriental cultures actively dried foods as early as 12,000 B.C. in the hot sun. Later cultures left more evidence and each would have methods and materials to reflect their food supplies—fish, wild game, domestic animals, etc.
Vegetables and fruits were also dried from the earliest times. The Romans were particularly fond of any dried fruit they could make. In the Middle Ages purposely built “still houses” were created to dry fruits, vegetables and herbs in areas that did not have enough strong sunlight for drying. A fire was used to create the heat needed to dry foods and in some cases smoking them as well.
Freezing
Freezing was an obvious preservation method to the appropriate climates. Any geographic area that had freezing temperatures for even part of a year made use of the temperature to preserve foods. Less than freezing temperatures were used to prolong storage times. Cellars, caves and cool streams were put to good use for that purpose.
In America estates had icehouses built to store ice and food on ice. Soon the “icehouse” became an
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Well… they probably do lower the levels of ethylene inside the plastic bag, so if you are comparing how long fruits and vegetables stay fresh in Green Bags as compared with other plastic bags, you might see an improvement. Or you might not, since ripening is not necessarily why produce spoils. Strawberries and raspberries, for example, usually mold long before the fruit itself goes bad. Most produce really shouldn’t be stored in plastic bags, so if you really want to extend its shelf life, leave the produce in the open (tomatoes and bananas) or use paper bags or loosely-wrapped damp paper towels. Some people have reported good results with Green Bags for certain types of produce, such as apples and peppers. I am unaware of anyone who has gotten the bags to preserve produce for the full 30
One of the most important structures to the Native American tribes of Western New York is the longhouse. This structure built only of wood. These structures allowed for these people to stay warm throughout winters that could be as harsh as any we have seen. The masterly crafted houses provided warmth in the winter and in the summers allowed for the air to flow through and keep the house cool. Without these houses, the tribes of New York would not have survived.
The common people were restricted to products of wheat and barley such as batters , bread and so on . Surely in all classes they used in meals vegetables , cheeses and fruits of the season, depending of course on the region they lived within.
ways of technology to survive in there environment. They used many different farming tools in
One method of the nomadic plains tribes for cooking was to use rawhide cooking vessels which came from the hump of the buffalo, staked over a mound of earth and left to dry in the shape of a bowl. The pot was put in a shallow hole near the fire, and then carefully selected stones that would not shatter easily would be put in the fire and transferred to the bowl with wood or bone tongs to heat the contents of the pot.
Farming also became a steady source of food for the early civilization. With established dwellings, communities were able to create crude irrigation systems to support their crops in the very dry dessert like climate. Domestication of animals also became a possibility as well with the more permanent living situation the early civilization h...
Medieval Food Food is something that all people have always and will always need to consume in order to survive and thrive. Not only this, but it is also has an important societal function. Food is an important part of celebrations and sometimes dictates roles in societies. In Medieval society food was important for banquets, what was eaten by a person could denote what class a person was from, and was often mentioned in the literature. For my project I presented desserts, bread, and a couple of drinks.
Although each subject is from completely different backgrounds, whether they be geographical or religious, they each share likeness in many different aspects of their lives. Showing the similarities as well as the differences in their eating habits can create a cultural map tracing each individuals food choices back to one source. In this case, the source may be the continent of Africa where many of these foods are eaten today. In West Africa, the yam is a very popular vegetable. This just goes to show how food can be the missing link of different cultures throughout the world.
Before we had agriculture to plant crops and care for animals, people were hunter-gatherers. They ate meat that they could catch and kill and they gathered whatever vegetation they could safely eat.
Years before electricity or any modern technology entered the Arctic region; The Inuit lived in circle domes called "igloos". There were no wood available out where they lived, so they had to get creative and use the snow that surrounded them. In which they had molded into gigantic blocks as a substitute instead. During the summertime they traded out their igloos for tents as shelter. At times they would add animal skins on their tents if it wasn't warm e...
If you are abreast with the history, some thousands of years ago, during the Paleolithic Age, cavemen had very few options for the foods that they could eat. As a result, their food intake was usually just restricted to fish, vegetables, nuts and the like.
Food was a very big part of Ancient Ghana’s (c.400 - c.1200) culture. The geography of Ghana assists in making Ghana a great place to grow crops. Due to most of Ghana’s agriculture being homegrown, many of its popular cuisines are made using everything that is grown in the Ghana. One of the household favorites in Ancient Ghana was a delicious meal commonly called “Kelewele”, or fried plantains. Back then the technology was not as good as it is today, therefore if they wanted to use ingredients to make dinner, they would have to go out and gather them (“Ghana Culture” 7). After gathering them they would have to prepare the food. Lastly, you would serve your meal and remember the significance of the meal.
Food during the medieval times was very different from the modern-day food that most people are accustomed to today. For example, drinking alcoholic beverages was as routine as drinking water today. Also, food was not only used to nourish yourself, food served as a measure of wealth and social status. Food with lots of herbs and spices was an indicator of affluence serving as a symbol, because the rich could afford herbs and spices. However, herbs and spices were not only used to determine social status, they had another very important use. Medicine during the medieval ages relied heavily on various types of foods such as but not limited to herbs and spices. These three aspects of food during the medieval ages exemplify the major aspects which
Millions of plastic bags are given out to consumers by supermarkets and stores to carry their goods in. They are also cheap, light, durable, easy to carry and in many cases, free. The most commonly used shopping bag is made of High Density Polyethylene (HDPE). This type is used in the majority of supermarkets and stores. After these bags are used, they often end up in landfills or as litter, roughly only three percent of plastic bags is actually recycled per year (Planet Ark, 2011). The materials used in making plastic bags make them non-biodegradable. According to the science dictionary, 2011 refers to “these materials cannot be decomposed into environmentally safe waste materials by the action of soil bacteria.” These harmful substances are toxic and take approximately four hundred years to break down, or in this case photo-degrade; which is how plastics made from (HDPE) break down. Since they are not biodegradable, they remain in the environment and are absorbed in soil or water (Indian Centre for Plastics in the Environment, 2010). This essay will discuss the various harmful effects of plastic bags, and demonstrate the risks that these bags impose on humans, animals and the environment. It will also discuss a series of suggested solutions that could help reduce plastic bag usage.
Archaeologists commonly offer differing hypotheses for the origins of food production. Various theoretical approaches have attempted to identify the circumstances that caused people to shift to deliberate cultivation and do...
The first people that started to depend on farming for food were in Israel and Jordan in about 80000 B.C.. Farming became popular because people no longer had to rely on just searching for food to get their food. In about 3000 B.C. Countries such as Egypt and Mesopotamia started to develop large scale irrigation systems and oxen drawn plows. In about 500 B.C. the Romans started to realize that the soil needed certain nutrients in order to bare plants. They also realized that if they left the soil for a year with no plants, these important nutrients would replenish. So they started to leave half of a field fallow (unplanted). They then discovered that they could use legumes, or pulses to restore these vital nutrients, such as nitrogen, to the soil and this started the process known as rotating crops. They would plant half the field one year with a legume...