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Tea is a common example of an infusion; most varieties of tea call for steeping the leaves in hot water, although some variants (e.g. Moroccan mint tea) call for decoction instead. Many herbal teas are prepared by infusion, as well; lemon, chamomile, senna, apple, ginger, rooibos, and many other plants are used individually or in combination.
Herbal tisanes being sold in Mauritius as medicines for various diseases. Herbal infusions may be made by pouring hot or boiling water over the plant parts and letting them steep for a period of time. The infusion temperature and time can vary depending on the type of plant part used and their properties.
In brewing, decoction mashing is the traditional method where a portion of the mash is removed to a separate vessel, boiled for a time and then returned to the main mash, raising the mash to the next temperature step. [citation needed] In herbalism, decoctions are usually made to extract fluids from hard plant materials such as roots and bark. [2]
Decoctions are the long-term boiled extracts, usually of harder substances like roots or bark. Maceration is the cold infusion of plants with high mucilage-content, such as sage or thyme. To make macerates, plants are chopped and added to cold water. They are then left to stand for 7 to 12 hours (depending on the herb used).
In herbal medicine, alcoholic tinctures are made with various ethanol concentrations, which should be at least 20% alcohol for preservation purposes. [ 1 ] [ 2 ] Other solvents for producing tinctures include vinegar , glycerol (also called glycerine), diethyl ether and propylene glycol , not all of which can be used for internal consumption.
Chinese herbal extracts are herbal decoctions that have been condensed into a granular or powdered form. Herbal extracts, similar to patent medicines, are easier and more convenient for patients to take. The industry extraction standard is 5:1, meaning for every five pounds of raw materials, one pound of herbal extract is derived.
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Butterfly pea flower tea, commonly known as blue tea, is a caffeine-free herbal tea, or tisane, beverage made from a decoction or infusion of the flower petals or whole flower of the Clitoria ternatea plant. Clitoria ternatea is also known as butterfly pea, blue pea, Aprajita, Cordofan pea, Blue Tea Flowers or Asian pigeonwings.