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fermentation

The process of yeast acting upon sugar to produce alcohol and carbon dioxide.

 

fermentation bottle

a.k.a. carboy

Sometimes called the secondary fermentation vessel, a fermentation bottle is a shouldered, small-mouthed glass jug or carboy in which the liquor is placed to complete fermentation under a fermentation trap.

 

fermentation media

a.k.a. must

The pulp or other solid material from which wine will be made. Fermentation media differs from must in that the must is the media, the water, the yeast, and all other ingredients mixed together, while the fermentation media more narrowly refers to the crushed grapes, chopped raisins, pulped peaches, cracked wheat, or other material used either for flavoring, natural sugar content, or both. It is also called the base ingredient or wine base.

 

fermentation trap

a.k.a. airlock, air trap, bubbler and trap

A glass or plastic device designed to use water as an insulator to protect the fermentation media from contamination and exposure to fresh air, while at the same time allowing carbon dioxide produced by the yeast to escape the fermentation vessel. Also called an air lock, bubbler or airlock.

 

fermenter

Container in which the fermentation process takes place.

 

fining

Removing suspended solids from a cloudy wine by temperature adjustment, blending with an already cleared wine of the same variety, filtering, or adding a fining material such as egg white, milk, gelatin, casein, or bentonite.

 

flogger

Simple wooden corking device.

 

fortification

Raising the alcohol content (per volume) of a wine by adding a liquor with higher alcohol content.

 

fruit bag

This is an old term. A long bag of finely woven net-like material (mesh) used for suspending grain or other fermentation media in liquid during fermentation to ease the removal of the solids later. Grain-bags come in various mesh and sizes and can be used in lieu of a jelly-bag for straining the solid fermentation media from the wine.

 

fruit fly

a.k.a. vinegar fly

Small fly found around rotting fruit. One fly into your wine, and your wine will turn into vinegar.

 

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