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Editorial Note: This article deals with general scientific findings on kombucha and not with Kombuchery products. Scientific findings and study results are not automatically transferable to individual foods or products. The article does not replace medical or nutritional advice and is not to be understood as a health-related statement about specific foods or products.

The content is based on scientific literature, publicly available sources, and the author's assessment, and does not claim to be exhaustive. New studies may confirm, supplement, restrict, or refute existing findings. Scientific publications should therefore always be considered in the overall context of the available evidence.

Studies generally refer to the specific conditions, ingredients, microorganisms, dosages, manufacturing processes, and groups of people investigated. The presented results cannot therefore be readily transferred to other foods, recipes, manufacturing processes, or products.

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Where did kombucha originate?

As extensive as the different flavor variations are the legends and myths surrounding the tea drink. The Western world is still a bit unfamiliar with the tea drink. In other parts of the world, the fermented tea drink with its unusual name and long tradition has long ceased to be a secret. There is agreement that kombucha originated in East Asia, Japan or China.

“Kombucha – a tradition surrounded by many legends.

For one, a Chinese legend states that the fermented tea drink originated around 247 BC - 221 BC. However, the Japanese doctor Kombu may also be the namesake. The name Kombucha could also be derived from a Japanese seaweed tea "Kombu" - seaweed + "Cha" - tea = "Kombucha". It is also possible that Japanese samurai in the 10th century AD took kombucha with them on their travels and campaigns. According to one legend, the samurai already carried the miracle drink on their hips back then.

What is Kombucha?

Simply put: It is a fermented tea drink. With the help of a tea fungus, various sweetened tea varieties, e.g. black tea, are fermented. The so-called tea fungus (also called Scoby) is a community of various microorganisms, bacteria and yeasts. During fermentation, tea and sugar are metabolized into a refreshing drink in a short time. During fermentation, bacteria and yeasts metabolize components of the sweetened tea. This creates a characteristically sweet-sour and slightly sparkling fermented tea drink.

The tea drink offers a delicious, naturally carbonated, sweet-sour alternative to lemonades or other soft drinks. During fermentation, various organic acids and other natural fermentation products can be formed depending on the culture and production conditions.

Drei Flaschen Kombucha Zweitfermentierung mit Apfelstuecken

What ingredients can be formed during kombucha fermentation?

The composition of kombucha can vary considerably depending on the culture, tea, sugar, and fermentation conditions used. The following substances have been described in different kombucha contexts and are not automatically contained in every kombucha or in nutritionally relevant quantities. The substances are described in different kombucha contexts and are not automatically contained in every kombucha or in relevant quantities.

The exact composition of kombucha depends heavily on the tea, culture, recipe and fermentation conditions. Typically, various organic acids and other natural fermentation products are formed during fermentation. Depending on the culture, different bacteria and yeasts may also be present. Which vitamins or other substances are actually present in relevant quantities must be determined for each kombucha.

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*Vitamin C contributes to the normal function of the immune system, normal energy metabolism, and the protection of cells from oxidative stress.
  • Vitamin C contributes to the normal function of the immune system.
  • Vitamin C contributes to normal psychological function.
  • Vitamin C contributes to normal energy-yielding metabolism.
  • Vitamin C contributes to the reduction of tiredness and fatigue.
  • Vitamin C contributes to the normal functioning of the nervous system.
  • Vitamin C contributes to the protection of cells from oxidative stress.
  • Vitamin C contributes to the regeneration of the reduced form of vitamin E.
  • Vitamin C contributes to normal collagen formation for the normal function of the skin.
  • Vitamin C contributes to normal collagen formation for the normal function of blood vessels.
  • Vitamin C contributes to normal collagen formation for the normal function of bones, cartilage, teeth and gums.
  • Vitamin C increases iron absorption.