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2. Fermentation in winemaking - Wikipedia

   en.wikipedia.org/wiki/Fermentation_in_winemaking

   The process of fermentation in winemaking turns grape juice into an alcoholic beverage. During fermentation, yeasts transform sugars present in the juice into ethanol and carbon dioxide (as a by-product). In winemaking, the temperature and speed of fermentation are important considerations as well as the levels of oxygen present in the must at ...

3. Hydrometer - Wikipedia

   en.wikipedia.org/wiki/Hydrometer

   Hydrometer. Schematic drawing of a hydrometer. The lower the density of the fluid, the deeper the weighted float B sinks. The depth is read off the scale A. A hydrometer or lactometer is an instrument used for measuring density or relative density of liquids based on the concept of buoyancy. They are typically calibrated and graduated with one ...

4. Fahrenheit hydrometer - Wikipedia

   en.wikipedia.org/wiki/Fahrenheit_hydrometer

   The Fahrenheit hydrometer is a constant-volume device that will float in water. In the figure shown here, the hydrometer is floating vertically in a cylinder containing a liquid. At the bottom of the hydrometer is a weighted bulb and at the top is a pan for small weights. To use the hydrometer, one first accurately determines its weight (W ...

5. Winemaking - Wikipedia

   en.wikipedia.org/wiki/Winemaking

   Winemaking. Wine grapes from the Guadalupe Valley in Ensenada, Baja California, Mexico. Winemaking, wine-making, or vinification is the production of wine, starting with the selection of the fruit, its fermentation into alcohol, and the bottling of the finished liquid. The history of wine -making stretches over millennia.

6. Gravity (alcoholic beverage) - Wikipedia

   en.wikipedia.org/wiki/Gravity_(alcoholic_beverage)

   Gravity, in the context of fermenting alcoholic beverages, refers to the specific gravity (abbreviated SG), or relative density compared to water, of the wort or must at various stages in the fermentation. The concept is used in the brewing and wine-making industries. Specific gravity is measured by a hydrometer, refractometer, pycnometer or ...

7. Moonshine - Wikipedia

   en.wikipedia.org/wiki/Moonshine

   A more reliable method is to use an alcoholmeter or hydrometer. A hydrometer is used during and after the fermentation process to determine the potential alcohol percentage of the moonshine, whereas an alcoholmeter is used after the product has been distilled to determine the volume percent or proof. [citation needed]

8. Clarification and stabilization of wine - Wikipedia

   en.wikipedia.org/wiki/Clarification_and...

   In winemaking, clarification and stabilization are the processes by which insoluble matter suspended in the wine is removed before bottling. This matter may include dead yeast cells (lees), bacteria, tartrates, proteins, pectins, various tannins and other phenolic compounds, as well as pieces of grape skin, pulp, stems and gums. [1]

9. Glass onion - Wikipedia

   en.wikipedia.org/wiki/Glass_onion_bottle

   Digby's technique produced wine bottles which were stronger and more stable than most of their day, and protected the contents from light due to their green or brown translucent, rather than clear transparent, color. [2] These early bottles, usually referred to as "shaft and globe" bottles, evolved into the onion bottle shape by the 1670s.