You are using an old browser that may not function as expected.
For a better, safer browsing experience, please upgrade your browser.

Log in Become a Member


Term for the mixture of grapes and grape must; see under mash fermentation.

Maische - rote Maische, weiße und rote Maische und weiße Maische

This fermentation technique is the oldest and still the most widespread method for making red wine. Usually, destemming takes place first to separate the berries from the grape skeletons. The berries are crushed so that their juice can escape. In southern countries, stomping with bare feet is still common to break up the berries in a gentle way. This juice-fruit pulp mixture is called mash. The question of pure or spontaneous fermentation plays a much lesser role than with white wine, since considerably more vineyard yeasts enter the mash with the skins. This means that a good fermentation process (fully fermented) is also possible without problems using natural yeasts. Today's trend is to achieve a colourful, dark red wine with tannins that are as harmonious as possible. The picture on the left shows an open mash fermentation, the picture on the right a red wine marc.

Tresterhut - Maischebottich und Rotweintrester

Regardless of the technique, the pomace (solids) floating on top must be constantly mixed or punched down with the fermenting must (French: pigeage, English: punch down) in order to strengthen the extraction. In the past, this was done conventionally by purely manual stirring with wooden sticks. Today, however, mechanical methods are often used, such as overpumping the must onto the pomace, rotating the entire mash in a drum-shaped fermentation container and punching down the pomace using a rotofermenter or autovinification. Permanent contact of the mash with the liquid can also be achieved by screens or similar built into the containers. This prevents the marc cap from rising and it is constantly washed around. This is called the "heading-down system".

NMaischegärung - Rotofermenter

Open mash fermentation

Depending on the desired type of wine, the mash fermentation takes place in different fermentation containers. Depending on the fermentation container, a distinction is made between open and closed mash fermentation. Traditional open mash fermentation can take place in fermentation containers made of wood, concrete or...

Voices of our members

Thomas Götz

Serious sources on the internet are rare - and Wine lexicon from wein.plus is one such source. When researching for my articles, I regularly consult the wein.plus encyclopaedia. There I get reliable and detailed information.

Thomas Götz
Weinberater, Weinblogger und Journalist; Schwendi

The world's largest Lexicon of wine terms.

26,115 Keywords · 46,881 Synonyms · 5,323 Translations · 31,449 Pronunciations · 188,241 Cross-references
made with by our author Norbert F. J. Tischelmayer. About the Lexicon