Tasseography

Tasseography (also known as tasseomancy, tassology, or tasseology) is a divination or fortune-telling method that interprets patterns in tea leaves, coffee grounds, or wine sediments.
The terms derive from the French word "tasse" (cup), which in turn derives from the Arabic loan-word into French "tassa", and the Greek suffixes -graph (writing), -logy (study of), and -mancy (divination).
History.
Tasseomancy followed the trade routes of tea and coffee and was practiced by Romani people.
Western tasseography can be linked to medieval European fortune tellers who developed their readings from splatters of wax, lead, and other molten substances.
Method of tea-leaf reading.
The "Encyclopedia of Occultism & Parapsychology, Fifth Edition, Vol. 2", edited by J. Gordon Melton, notes:
Melton's described methods of pouring away the tea and shaking the cup are rarely seen; most readers ask the querent to drink the tea off, then swirl the cup.
Fortune telling tea cups.
Although many people prefer a simple white cup for tea leaf reading, there are also traditions concerning the positional placement of the leaves in the cup, and some find it easier to work with marked cups. Beginning in the late 19th century and continuing to the present, English and American potteries have produced specially decorated cup and saucer sets for the use of tea-leaf readers. Many of these designs are patented and come with instructions explaining their mode of use. Some of the most common were those that were given away with purchases of bulk tea.
Coffee reading.
Coffee reading (, , , ) is traditionally practiced using Arabic coffee/Turkish coffee as it produces a very thick sediment. The coffee in the cup is consumed, and the sediment is left to settle.
There are several variations of coffee reading. They commonly require for the cup to be covered with the saucer and turned upside-down. In the Turkish tradition, coffee-readers often interpret the cup as being divided into horizontal halves: symbols appearing on the bottom half are interpreted as messages regarding the past, and symbols on the top half are messages regarding the future. The cup may also be interpreted in vertical halves to determine "yes" or "no" answers as well as the overall outcome of the events represented by symbols. For example, some fortune tellers may "read" symbols in the "left" half as "negative" events or outcomes, while symbols in the "right" half are "read" as "positive". Other readers may adhere to the belief that the cup is capable of revealing insights about the past, but it cannot predict events beyond forty days into the future. The saucer may also be incorporated into the reading. As with the cup, different variations exist for what the saucer represents, including whether the saucer sticking to the cup indicates a "positive" or "negative" outcome.
Symbols.
When a cup of tea or coffee has been drunk, a sediment often remains.
This sediment can be known to form patterns or symbols within it, leaving a perfect canvas for interpretation. There are many possibilities of images appearing in a cup. Images formed in a cup are created and uniquely seen by the reader, so it is often said that the only limitation for cup reading is the imagination of the reader themselves.
Symbols can be many things, including people, animals, physical objects, thoughts, feelings, words and instincts. Often, the reader will interpret symbols together for a prediction as well as acknowledging their individual meanings.
Symbol interpretation can be drawn from history, statistics, pop culture references, and often nature or how we interact with the world. There are also many classic image interpretations that were developed in Great Britain in the late 1800s as tasseomancy gained popularity as a parlour game.