AN ASSIGNMENT
ON
FOOD PROCESSING [FST 414]
TOPIC
WRITE A CONCISE HISTORY OF TRADITIONAL METHODS OF FOOD
PACKAGING
BY
IMOGBOLU JANET IDOKU
FPA/FT/23/3-0447
SUBMITTED TO
DEPARTMENT OF FOOD TECHNOLOGY
SCHOOL OF SCIENCE AND COMPUTER STUDIES
THE FEDERAL POLYTECHNIC ADO EKITI
EKITI STATE
MARCH, 2025.
Introduction
Very early in time, food was consumed where it was found. Families and villages
were self-sufficient, making and catching what they used. When containers were
needed, nature provided gourds, shells and leaves to use. Later, containers were
fashioned from natural materials, such as hollowed logs, woven grasses and
animal organs.
Fabrics descended from furs used as primitive clothing. Fibers were matted into
felts by plaiting or weaving. These fabrics were made into garments, used to
wrap products or formed into bags. With the weaving process, grasses, and later
reeds, were made into baskets to store food surpluses. Some foods could then be
saved for future meals and less time was needed for seeking and gathering food.
As ores and compounds were discovered, metals and pottery were developed,
leading to other packaging forms. A brief review of the more popular packaging
developments is included in this fact sheet.
Paper and Paper Products
Paper may be the oldest form of what today is referred to as “flexible
packaging.” Sheets of treated mulberry bark were used by the Chinese to wrap
foods as early as the first or second century B.C. During the next 1,500 years, the
paper making technique was refined and transported to the Middle East, then
Europe and finally into the United Kingdom in 1310. Eventually, the technique
arrived in America in Germantown, Pennsylvania, in 1690.
But these first papers were somewhat different from those used today. Early
paper was made from flax fibers and later old linen rags. It wasn't until 1867 that
paper originating from wood pulp was developed.
Although commercial paper bags were first manufactured in Bristol, England, in
1844, Francis Wolle invented the bag making machine in 1852 in the United
States. Further advancements during the 1870s included glued paper sacks and
the gusset design. After the turn of the century (1905), the machinery was
invented to automatically produce in-line printed paper bags.
With the development of the glued paper sack, the more expensive cotton flour
sacks could be replaced. But a sturdier multi-walled paper sack for larger
quantities could not replace cloth until 1925 when a means of sewing the ends
was finally invented.
The first commercial cardboard box was produced in England in 1817, more than
200 years after the Chinese invented cardboard. Corrugated paper appeared in
the 1850s; about 1900, shipping cartons of faced corrugated paperboard began to
replace self-made wooden crates and boxes used for trade.
As with many innovations, the development of the carton was accidental. Robert
Gair was a Brooklyn printer and paper-bag maker during the 1870s. While he
was printing an order of seed bags, a metal rule normally used to crease bags
shifted in position and cut the bag. Gair concluded that cutting and creasing
paperboard in one operation would have advantages; the first automatically
made carton, now referred to as “semi-flexible packaging,” was created.
The development of flaked cereals advanced the use of paperboard cartons. The
Kellogg brothers were first to use cereal cartons at their Battle Creek, Michigan,
Sanatorium. When this “health food” of the past was later marketed to the
masses, a waxed, heat-sealed bag of Waxtite was wrapped around the outside of
a plain box. The outer wrapper was printed with the brand name and advertising
copy. Today, of course, the plastic liner protects cereals and other products
within the printed carton.
Paper and paperboard packaging increased in popularity well into the 20th
century. Then, with the advent of plastics as a significant player in packaging
(late 1970s and early 1980s), paper and its related products tended to fade in use.
Lately, that trend has halted as designers try to respond to environmental
concerns.
Glass
Although glass-making began in 7000 B.C. as an offshoot of pottery, it was first
industrialized in Egypt in 1500 B.C. Made from base materials (limestone, soda,
sand and silica), which were in plentiful supply, all ingredients were simply
melted together and molded while hot. Since that early discovery, the mixing
process and the ingredients have changed very little, but the molding techniques
have progressed dramatically.
At first, ropes of molten glass were coiled into shapes and fused together. By
1200 B.C., glass was pressed into molds to make cups and bowls. When the
blowpipe was invented by the Phoenicians in 300 B.C., it not only speeded
production but allowed for round containers. Colors were available from the
beginning, but clear, transparent glass was not discovered until the start of the
Christian era. During the next 1000 years, the process spread steadily, but slowly,
across Europe.
The split mold developed in the 17th and 18th centuries further provided for
irregular shapes and raised decorations. The identification of the maker and the
product name could then be molded into the glass container as it was
manufactured. As techniques were further refined in the 18th and 19th centuries,
prices of glass containers continued to decrease. One development that enhanced
the process was the first automatic rotary bottle making machine, patented in
1889. Current equipment automatically produces 20,000 bottles per day.
While other packaging products, such as metals and plastics, were gaining
popularity in the 1970s, packaging in glass tended to be reserved for high-value
products. As a type of “rigid packaging,” glass has many uses today.
Metals
Ancient boxes and cups, made from silver and gold, were much too valuable for
common use. Other metals, stronger alloys, thinner gauges and coatings were
eventually developed.
The process of tin plating was discovered in Bohemia in A.D. 1200 and cans of
iron, coated with tin, were known in Bavaria as early as the 14th century.
However, the plating process was a closely guarded secret until the 1600s.
Thanks to the Duke of Saxony, who stole the technique, it progressed across
Europe to France and the United Kingdom by the early 19th century. After
William Underwood transferred the process to the United States via Boston, steel
replaced iron, which improved both output and quality.
In 1764, London tobacconists began selling snuff in metal canisters, another type
of today's “rigid packaging.” But no one was willing to use metal for food since it
was considered poisonous.
The safe preservation of foods in metal containers was finally realized in France
in the early 1800s. In 1809, General Napoleon Bonaparte offered 12,000 francs to
anyone who could preserve food for his army. Nicholas Appert, a Parisian chef
and confectioner, found that food sealed in tin containers and sterilized by
boiling could be preserved for long periods. A year later (1810), Peter Durand of
Britain received a patent for tinplate after devising the sealed cylindrical can.
Since food was now safe within metal packaging, other products were made
available in metal boxes. In the 1830s, cookies and matches were sold in tins and
by 1866 the first printed metal boxes were made in the United States for cakes of
Dr. Lyon's tooth powder.
The first cans produced were soldered by hand, leaving a 1 1/2-inch hole in the
top to force in the food. A patch was then soldered in place but a small air hole
remained during the cooking process. Another small drop of solder then closed
the air hole. At this rate, only 60 cans per day could be manufactured.
In 1868, interior enamels for cans were developed, but double seam closures
using a sealing compound were not available until 1888.
Aluminum particles were first extracted from bauxite ore in 1825 at the high
price of $545 per pound. When the development of better processes began in
1852, the prices steadily declined until the low price of $14 per pound in 1942.
Although commercial foils entered the market in 1910, the first aluminum foil
containers were designed in the early 1950s, while the aluminum can appeared
in 1959.
After cans were invented and progressively improved, it was necessary to find a
way to open them. Until 1866, a hammer and chisel was the only method. It was
then that the keywind metal tear-strip was developed. Nine years later (1875),
the can opener was invented. Further developments modernized the mechanism
and added electricity, but the can opener has remained, for more than 100 years,
the most efficient method of retrieving the contents. In the 1950s, the pop top/tear
tab can lid appeared and now tear tapes that open and reseal are popular.
Collapsible, soft metal tubes, today known as “flexible packaging,” were first
used for artist’s paints in 1841. Toothpaste was invented in the 1890s and started
to appear in collapsible metal tubes. But food products really did not make use of
this packaging form until the 1960s. Later, aluminum was changed to plastic for
such food items as sandwich pastes, cake icings and pudding toppings.
Plastics
Plastic is the youngest in comparison with other packaging materials. Although
discovered in the 19th century, most plastics were reserved for military and
wartime use.
Styrene was first distilled from a balsam tree in 1831. But the early products were
brittle and shattered easily. Germany refined the process in 1933, and by the
1950s foam was available worldwide. Insulation and cushioning materials as
well as foam boxes, cups and meat trays for the food industry became popular.
Vinyl chloride, discovered in 1835, provided for the further development of
rubber chemistry. For packaging, molded deodorant squeeze bottles were
introduced in 1947, and in 1958, heat shrinkable films were developed from
blending styrene with synthetic rubber. Today, some water and vegetable oil
containers are made from vinyl chloride.
Another plastic was invented during the American Civil War. Due to a shortage
of ivory, a U.S. manufacturer of billiard balls offered a $10,000 reward for an
ivory substitute. A New York engineer, John Wesley Hyatt, with his brother
Isaiah Smith Hyatt, experimented several years before creating the new material.
Patented in 1870, “celluloid” could not be molded, but rather carved and shaped,
just like ivory.
Cellulose acetate was first derived from wood pulp in 1900 and developed for
photographic uses in 1909. Although DuPont manufactured cellophane in New
York in 1924, it wasn't commercially used for packaging until the late 1950s and
early 1960s. In the interim, polyethylene film wraps were reserved for the
military. In 1933, films protected submarine telephone cables and later were
important for World War II radar cables and drug tablet packaging.
Other cellophane and transparent films have been refined as outer wrappings
that maintain their shape when folded. Originally clear, such films can now be
made opaque, colored or embossed with patterns.
The Polyethylene Terephthalate (PETE) container only became available during
the last two decades with its use for beverages entering the market in 1977. By
1980, foods and other hot-fill products such as jams could also be packaged in
PETE.
Current packaging designs are beginning to incorporate recyclable and recycled
plastics but the search for reuse functions continues.
Labels and Trademarks
One rather recent development in packaging is the labeling of the product with
the company name and contents information.
In the 1660s, imports into England often cheated the public and the phrase “let
the buyer beware” became popular. Inferior quality and impure products were
disguised and sold to uninformed customers. Honest merchants, unhappy with
this deception, began to mark their wares with their identification to alert
potential buyers.
Official trademarks were pioneered in 1866 by Smith Brothers for their cough
drops marketed in large glass jars. This was a new idea—using the package to
“brand” a product for the benefit of the consumer.
In 1870, the first registered U.S. trademark was awarded to the Eagle-Arwill
Chemical Paint Company. Today, there are nearly 750,000 registered trademarks
in the United States alone. Labels now contain a great deal of information
intended to protect and instruct the public.
From containers provided by nature to the use of complex materials and
processes, packaging has changed. Various factors contributed to this growth:
the needs and concerns of people, competition in the marketplace, unusual
events (such as wars), shifting lifestyles, as well as discoveries and inventions.
During the past two decades, a consumer-led concern of the environmental
impact of packaging has changed the packaging industry. An estimated $200
billion dollars was invested in the past two decades by packaging firms to refine
packaging for a reduced environmental impact. Just as no single cause
influenced past development, a variety of forces will continue to be required to
create the packages of the future.
The emergence of Paper Packaging
The major problem with earthenware pots and glass jars – apart from how to seal
them effectively - is that they break relatively easily, especially if they’re being
transported. In around AD 105, the Chinese were using a kind of paper, made by
shaping treated mulberry bark into sheets. Over the next thousand years, the
paper-making technique was refined and it gradually made its way along the
Silk Road to the Middle East and Europe, arriving in what is now the U.K. in
1310.
Medieval and early Modern Packaging
Fast forward to the Middle Ages. During this time period, packaging had a mini
boom, with both wooden barrels and boxes becoming highly sought after.
Anyone with the surname Cooper will know that their name means barrel
maker and that the profession is still going strong today, particularly in the wine
and whiskey industries.
Back then, however, wooden barrels were used for transporting another
alcoholic favourite, rum, but also dried food, fresh water, fruit and vegetables,
grains, salted meat and oil. What’s more, they could be moved efficiently, rolling
on or off whatever made of transport necessary and then standing up on their
ends, secure and unlike to wobble over as a result of their wider, stabilising
middles.
The Middle Ages gave way to the early modern period and the age of great
exploration and discovery across vast uncharted oceans and territories. It was
imperative that supplies lasted the journey and barrels provided a solution.
Anyone with the surname Cooper will know that their name means barrel
maker and the profession is still going strong today. The West was also catching
up with China and seeing the benefits of paper packaging. Though not yet
tenable because of cost of manufacture, it was clear to see how suitable it might
one day be, lightweight, easy to transport and breathable as it is.
Packaging for Revolution
With the advent of the industrial revolution and as a result of major
technological advances, there was a surge in the mass production of products
available to the masses. One stumbling block, however, was that though the
products themselves were more affordable than ever before, packaging was often
prohibitively expensive and reserved mainly for luxury items.
References
Marsh, K. and Bugusu, B. (2007). Food packaging—roles, materials, and
environmental issues. Journal of Food Science 72, (3), 39-55.
History of Packaging Products. Retrieved 08/24/2016 from
uspackagingandwrapping.com/blog/The-History-of-Packaging.html
Paula Hook and Joe E. Heimlich
Revised and adapted by Cynthia Bond