Chifir

Chifir ) is an exceptionally strong tea, associated with and brewed in Soviet and post-Soviet detention facilities such as gulags and prisons.
Some sources mention properties of a light drug, causing addiction.

Etymology

The etymology is uncertain but is thought to come from the word meaning a strong Caucasian wine, or a Siberian word for wine that has gone off and become sour and acidic.

Preparation

Chifir is typically prepared with 5–8 tablespoons of loose tea per person poured on top of the boiled water. It is brewed without stirring – at least until the leaves drop to the bottom of the cup. During the brewing process, the leaves start to release adenine and guanine into the water, which does not happen during traditional tea-making. Sugar is sometimes added; the nature of the brew tends to result in a bitter flavor.
It is to be carefully sipped, otherwise it may cause vomiting. Ultimately, making chifir involves brewing a great deal of black tea and for a long time. It may be left to brew overnight and drunk either hot or cold.

In popular culture

Irina Ratushinskaya describes the brewing of narcotically strong chifir as a banned activity sometimes undertaken by prisoners, in her memoir of her years as a political prisoner, Grey Is The Colour Of Hope.
In the Gabriele Salvatores-directed film Deadly Code, the character played by John Malkovich prepares and describes chifir to the young Kolyma.