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  2. Drip coffee - Wikipedia

    en.wikipedia.org/wiki/Drip_coffee

    The pour-over coffee preparation method typically starts by pouring a small amount of hot water over the coffee grounds and allow it to sit for about half a minute before continuing the pouring. This pre-wetting, called blooming, [nb 1] will cause carbon dioxide to be released in bubbles or foam from the coffee grounds and helps to improve the ...

  3. Beaker (laboratory equipment) - Wikipedia

    en.wikipedia.org/wiki/Beaker_(laboratory_equipment)

    In laboratory equipment, a beaker is generally a cylindrical container with a flat bottom. [1] Most also have a small spout (or "beak") to aid pouring, as shown in the picture. Beakers are available in a wide range of sizes, from one milliliter up to several liters. A beaker is distinguished from a flask by having straight rather than sloping ...

  4. Erlenmeyer flask - Wikipedia

    en.wikipedia.org/wiki/Erlenmeyer_flask

    An Erlenmeyer flask, also known as a conical flask (British English) [1] or a titration flask, is a type of laboratory flask with a flat bottom, a conical body, and a cylindrical neck. It is named after the German chemist Emil Erlenmeyer (1825–1909), who invented it in 1860.

  5. Laboratory flask - Wikipedia

    en.wikipedia.org/wiki/Laboratory_flask

    Round-bottom flasks are shaped like a tube emerging from the top of a sphere. The flasks are often long necked; sometimes they have the incision on the neck, which precisely defines the volume of flask. They can be used in distillations, or in the heating a product. These types of flask are alternatively called Florence flasks. Flasks with flat ...

  6. Test tube - Wikipedia

    en.wikipedia.org/wiki/Test_tube

    A chemistry test tube typically has a flat bottom, a round bottom, or a conical bottom. Some test tubes are made to accept a ground glass stopper or a screw cap. They are often provided with a small ground glass or white glaze area near the top for labelling with a pencil.

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  8. Florence flask - Wikipedia

    en.wikipedia.org/wiki/Florence_flask

    It is used as a container to hold liquids. A Florence flask has a round body, a long neck, and often a flat bottom. It is designed for uniform heating, boiling, distillation and ease of swirling; it is produced in a number of different glass thicknesses to stand different types of use.

  9. Coffee filter - Wikipedia

    en.wikipedia.org/wiki/Coffee_filter

    In 1936, [22] Melitta also took over the manufacturer of the "Blitz-Filter ". [ 18 ] : 33–34, 36 The cone-shaped filter holders were refined in 1936 to get a slot-shaped bottom (originally with 4 holes) more suitable for the filter bags, now looking more fan- or boat-shaped. [ 18 ]