Tag Archives: Black Tea

Tea Bags vs Tea Leaves Part 1: CTC Tea

There are two basic ways in which tea is manufactured for the global market, CTC and Orthodox. The process results in very different end products serving dramatically different needs. CTC tea manufacturing produces small bits of tea leaves that are typically found in tea bags while orthodox manufacturing provides a product with larger tea leaf parts on up to whole leaf. In Part 1 we will look in more detail at CTC tea manufacturing, the product derived from this method, and the consumer products that result. When we get to Part 2 we will examine Orthodox manufacturing methods and the resulting products.

CTC Tea Processing

Tea Processing – Flicker by Swaminthan – CC BY 2.0

CTC Tea Explained

CTC tea is defined as “Crush Tear Curl” and is a manufacturing method developed by William McKercher in 1931. By one account McKercher developed this method as a way of producing greater quantities of black tea using more mature, larger leaves which, when prepared with milk and sugar could appeal to a broader market (Srivastava, 2011). Regardless, CTC manufacturing spread widely between the 1950’s and 1970’s as teabags gained popularity.

CTC machines themselves are made up of large steel cylinders, manufactured with U or V shaped teeth in them, placed tightly together and turning at different rates of speed. After withering, tea is often pre-processed with a rotorvane, a machine that takes tea from a hopper and causes some initial tearing and crushing of the leaf before passing it along to the CTC machines. The tea is then crushed, torn, and twisted in passing between the steel cylinders of the CTC machine before falling onto a conveyor belt and moving along to another set of CTC rollers. This process can be repeated several times depending on the desired size of the finished product before finally moving along to be fired.

CTC Tea

CTC Tea by USAGI-WRP CC BY 3.0

Finished product ranges in size substantially but is generally small pieces of tea leaf down to dust particles which are then rolled into small balls or pellets. The goal with CTC is generally a black tea product that oxidizes quickly and can be reliably produced with uniform size. CTC manufacturing really took off with the introduction of tea bags, thus it is not surprising today that the product of CTC manufacture is primarily for this market. Today CTC tea accounts for about 80% of the market for tea and is a significant part of production in most countries of the world. This probably should not be surprising since much of the word drinks black tea and CTC is synonymous with production of most black teas.

CTC Tea and Quality Tea

A quick word on quality. CTC tea is a very different product from that of Orthodox manufactured teas. The focus for CTC is much more on high volume, large scale tea production with faster oxidation of the product, and consistent taste and liquor appearance. The goal is normally consistent product such that buyers know what to expect with every purchase. The goal with Orthodox production is often very different where the aesthetics of the finished product is important, a wider variety of taste and aroma is desired, and in many cases it’s acceptable or desired to have product which varies from season to season. Therefore, it would really be unfair to hold Orthodox tea products up as “higher quality”. It’s more a question of what the buyer is looking for and if they wish to have greater opportunities to explore variations in tea or if they are just looking for a consistent cup of tea each and every day.

What is your preference, CTC, Orthodox, or does it matter as long as it tastes good?

Follow me @DominionTea or @DavidSColey

Works Cited

Srivastava, D. (2011, September 23). Methods of Basic Research: Issues of Ethics and Plagiarism, http://www.vecc.gov.in/colloquium/dks_lecture.pdf. Kolkata, India.

 

Tea Harvesting

Woman Plucking Tea in Assam India

Tea Plucker in Assam by Diganta Talukdar CC-BY-2.0

For centuries the only way to harvest tea leaves was to hand pluck them, and in many countries that is still the primary means of harvest.  This may be intentional or may be due to the lack of capital necessary to purchase the equipment.  For those farms who chose to use modern agricultural equipment there are multiple options from which to choose that can be implemented at various points in the harvesting season.  For example, in Japan, some farmers choose to hand pluck the first flush of a season and use mechanical means for subsequent harvests.

Tea does have a harvesting season, though the length and number of flushes varies widely. In China it is typically in the spring and fall. As mentioned in our earlier blog Camellia Sinensis, season is effected by water, location and temperature.  During a harvesting season the tea is usually picked once every week to two weeks.  In places where harvesting can occur year round, during the peak season, the tea can be picked multiple times during a week.

As you can imagine plucking tea by hand is very labor intensive work where typically, the bud and first two leaves are plucked.  In regions of China, on top of plucking the tea leaves, the pluckers are hiking up and down mountainous terrain to get to the leaves.  In some of the oldest farms, the pluckers are also climbing into the old ungroomed tea trees to pluck.   Pluckers will carry some kind of means to collect leaves as they pluck, often a bag or bamboo basket.  They will add leaves as they pluck and when full they carry their harvest back to the farm before returning to the fields to keep plucking.  In many countries women make up the predominant portion of the plucking workforce.  In China, this is driven by the belief that women have just the right touch in plucking leaves, not leaving the tea tree brushed or damaged at the breaking point.  This is extremely important for future harvests, because the tea tree will not continue to produce leaves on a branch where it is bruised or damaged.

Tea Harvesting by Machine in Japan

Tea Harvesting by Machine by Oli Studholme CC-BY-2.0

Knowing that the tea tree is sensitive to where the plucking occurs, it is hard to imagine how big farm trackers or automatic pruners could to the same job.  However, the Japanese have implemented laser technology to allow their automatic pruning machines to be hand-pulled over the tea trees with cuttings sucked into either bags or shoots that go back to the main staging area for the plucked tea.  This laser guidance allows the pruners to cut at just the right place and angle so the tree continues to grow from the same branch.  Since oxidation begins immediately after harvest it is critical, especially for green tea, to start the manufacturing process as soon as possible and this system allows much faster transport of leaves to processing facilities.  I imagine that other countries, like Sri Lanka, which are experiencing labor shortages on their tea farms as younger generations leave the farm for jobs in the cities, will eventually turn to this technology to allow harvesting to continue.

While many countries still utilize substantial labor to harvest tea, Argentina plantations almost exclusively use large elevated tractors that drive above the tea trees to harvest tea leaves.  Machine harvested leaves don’t usually have the bud and two leaf combination but individual leaves instead, some with and some without stems.  Given that the plantations in Argentina are able to harvest year round, it is not a surprise that they use equipment.

Mechanically harvested tea is not always destined to tea bags.  Quality loose leaf tea can be harvested by machine, you will just not see a bud and two leaves in the tea.  Instead you will find single leaves and buds and in some cases no stems on the leaves with an almost perfectly straight edge at the base of the leaf.  As for whether plucking by hand or machine effects the quality of the end product, it is hard to imagine that it does.  Of course, I am just an American that is accustomed to John Deere tractors harvesting everything from oranges to wheat, so why not tea?

by Hillary Coley

Follow me on Twitter @HillaryColey or @DominionTea

Loose Leaf vs Fannings and Dust

What’s in a Cup of Tea?

Simple right? Add some leaves to a little hot water, A pot of tea.let sit a few minutes, and voilà. However, this seemingly simple question can unfurl into a huge variety of topics ranging from the different types of tea to the impact on world history. An exploration of tea affords the opportunity to better understand what is behind those tea bags, broaden your palette, and appreciate how the drink has influenced history and the world culture that we have today. Our intent with the Dominion Tea blog is to try to explore a variety of these topics, admittedly with a focus on specialty loose leaf tea. Over time we seek to dive deeper into the many facets of tea in an effort to learn more about this beverage. In this specific posting we seek merely to scratch the surface, looking broadly at products, countries growing tea, and how history was impacted by our favorite drink.

Types of Tea

Most US citizens associate tea with the humble tea bag found in the grocery store or restaurant. However, today tea is found in a great many forms, driven by wide ranging consumer interest in gourmet and specialty foods, social concerns around its production, convenience, and individual health. As a result, products include loose leaf tea, tea bags, ready-to-drink products, powdered options, shampoo, body wash, masks and scrubs, and even supplements.

Loose Leaf vs Fannings and Dust

Loose Leaf Tea vs Teabags

Within brewed or steeped tea, most American consumers experience comes from tea bags. These generally come from an extremely small number of multi-national corporations that buy huge quantities of tea and produce bags branded for consumer sale. This product is produced on mass scale and the emphasis is on low cost with consistent taste. The actual product inside is normally small particles from many different sources, referred to as fannings and dust. Contrast tea bag tea with that of specialty loose leaf tea which is closer to whole leaf and, at the high end, consists of the very best leaves which have been hand-picked and processed. While it’s virtually impossible to know where commodity products come from, it is increasingly common to know where and how specialty teas have been grown and manufactured. For those looking for a stronger connection to the source, greater variety, and higher quality, specialty teas offer a wide array of choice. Yellow, White, and Oolong Teas are among the options beyond the well-known Green and Black varieties. However, like fine wines, loose leaf specialty tea varies greatly in quality, authenticity, price, and availability. Generally, the closer to the traditional growing region and production methods, the wider the variety in taste from year to year, the harder it is to come by, and the more amazing the drinking experience.

Tea Growing Countries

Tea is produced in a large number of countries around the world. While China, India, Japan, and Sri Lanka are well known producers, the list also includes Kenya, Jamaica, Iran, Argentina, the United States, and many others. Numbers from the Food and Agriculture Organization of the United Nations suggest that some of these countries, like Japan and India, as well as China, grow tea in large part to satisfy domestic consumption. Others, like Sri Lanka and Kenya, produce it primarily for export, and some, like the U.S. grow only on a very minor scale. The cliff notes version is that a large number of countries produce tea with huge variety in production, appearance, and flavor differences providing a knowledgeable and informed tea drinker many avenues to explore.

History of the Worlds Second Most Popular Beverage (after water)

Tea permeates the history of many countries dating back hundreds of years and continuing to modern times. Around 1000 CE tea was a major trading commodity used by the Chinese to acquire horses from Tibet. More recently the trade led to the Opium Wars, concluding in 1842 with the United Kingdom taking ownership of Hong Kong. American imports from England began in about 1711 and continued until the Boston Tea Party of 1773 when the colonists, fed up over British taxation, tossed shiploads of tea into the harbor. As Joseph M. Walsh wrote in Tea: Its History and Mystery (circa 1892), “The birth of the greatest nation of all time [was] due to a three-penny tax on tea!”

American Tea Clipper Ship

American Tea Clipper Ship
Antonio Jacobsen [Public domain], via Wikimedia Commons

After the revolution, of course Americans continued drinking tea and the first two Clipper ships manufactured in the U.S. , Helena and Montauk built by H.W. Webb, were built specifically to travel to China for tea. Today American consumers prefer black tea by far. However, early American consumers actually preferred green tea until World War II when access was lost to most sources and the American palate shifted toward black.

Conclusion

Making a cup of tea can be quite a simple and pleasurable experience. However, for those of us who would like to know more about what is behind the beverage in our cup, how it is properly prepared, and how preferences in America differ from the rest of the world, there is much to learn. What started out as a love of tea, has becoming a great opportunity to continue to broaden our own horizons, teach our son about the world, and share our interest with others.

If you like what you’ve seen please subscribe to our blog, follow @DominionTea on Twitter or reach out to @DavidSColey or @HillaryColey, the two primary authors.