How to make the must not ferment?

Article by: Marta Escalante | Last update: April 10, 2022
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One of the dilemmas of those who make must is its conservation, since grape juice tends to ferment easily. The main element to combat this is refrigeration.

How to stop the fermentation of the must?

A winemaker who wants to make a wine with high levels of residual sugar (such as a dessert wine) can stop the initial fermentation, either by lowering the temperature of the must to stupefy the yeast, or by adding a high level of alcohol (such as brandy) to the must to kill the yeast and create a wine…

How to preserve homemade must?

So it is best to take the must very hot, put it in a tupperware and close it. Let it cool already closed and in the freezer. We still have the same problem of space as refrigerating, but it will last ten days without problems, that’s for sure.

How to preserve grape must?

Grape must can be kept at room temperature for 5 to 7 days if the container was vacuum sealed. In the fridge, once uncovered it can be between 7 and 10 days, and frozen between 8 and 10 months. To learn how to preserve grape must correctly, you just have to continue reading.

How long is the must left to ferment?

The fermentation process usually lasts between eight and 10 days. Then, the wine remains in the tank in the post-fermentation phase, macerating for as long as the winemaker estimates before devatting.

21 related questions found

How long is the must left to macerate to obtain the color of red wine?

The maceration of wine is the process that consists of the must fermenting or macerating temporarily before fermentation, in the presence of the skins, seeds, for a more or less long period between 1 and 4 weeks.

How long does it take to cook the wine must?


Red wine must ferment at a temperature between 30º and 35º. The fermentation time in this type of wine is 10 days. Making red wine requires one more step: during fermentation, the tank must be drained to aerate the wine.

What to do with grape must?

The must, whether concentrated or not, is used for:

Increase sugars in winemaking.Increase the degree of wine.Production of sweet wines.Production of juices, ciders…

How are juices preserved?

Choose to store your juices in preferably dark glass containers, avoid plastic containers. If you don’t have dark containers, you can use a clear glass container covered with aluminum foil. This will prevent the passage of light, keeping the enzymes in your juices alive for longer.

How is yeast activated to make wine?

Yeasts are usually found dry, so it is necessary to activate them. To do this, we will hydrate them in some warm water for at least 30 minutes with sugar and some nutrients.

How long does natural grape juice last?

One of the most frequent doubts is how long a natural juice lasts in the refrigerator. Most last up to 72 hours, so you can prepare them 3 days before the party.

How many types of must are there?

There are 3 types of must. The simple must, the concentrated must and the sulphited must. The simple is what remains of the fresh pressing of the grape and the fermentation process has not yet begun. The concentrate is the must that begins to dehydrate.

How to pasteurize grape juice?

This method was the most used in the beginning of pasteurization. It consists of heating the juice to 63-65°C for 20-30 minutes, and then allowing it to cool slowly. You may need up to 24 hours to continue with the packaging process, which may or may not be aseptic.

When does fermentation stop?

The process ends when the sugar is reduced so much that the yeasts have no food, although it can also be stopped by modifying factors such as temperature.

How to know when the fermentation of the wine ends?

The end of alcoholic fermentation:

AF is considered finished when the wine reaches a density of approximately 990 to 993 g/L for whites and 992 to 995 g/L for reds. This means that the yeasts have consumed as many fermentable sugars as they can.

What is the name of unfinished fermented wine?

Must wine: Must in full fermentation and, therefore, has not yet completed its vinification. Nose: Olfactory phase of the tasting. Set of aromas of wine.

How long can natural juices be kept?

Packaged at 80 ºC, it should be kept for 6 months without needing to be sterilized. To ensure that the juices are preserved longer, it is optimal to carry out a sterilization process: boil the product packed in a jam jar in a pot with plenty of water for 30 minutes.

How to preserve citrus juices?

Four steps to store citrus

Fruit that is not fresh or pieces that may be damaged should not be stored. … Store in a dry, cool and ventilated place, away from humidity, heat and protected from sunlight.

How long can juice be stored?

How long does fresh juice last? If you want to keep your freshly squeezed juice longer without taking it to the freezer, you can keep it in the fridge for three days. If you freeze it, it can last between 12 and 16 months.

What is done with the stem of the grape?

Pomace, lees and stalks, organic solids that are discarded in winemaking, are often used in the pharmaceutical and cosmetic industries. Also in food preservation. They investigate its benefits in human health.

What can be done with the skin of the grape?

The grape skins and skins discarded after making the wine are crushed and sifted to become an effective exfoliant. On the other hand, grape seeds contain omega 6 fatty acids with moisturizing and antioxidant properties, which benefit the immune system.

What can be done with grape skin?

Among its components, there are antioxidant compounds that can serve, using these shells and dried and crushed seeds (cas-sem) as base raw material for the preparation of semi-processed foods, such as jams, flour, dietary fiber, among others.

How long does it take to make wine?

This process lasts, depending on the type of wine to be made, between 10 and 14 days, and must take place at temperatures not exceeding 29ºC. After this time, devatting occurs, through which the liquid is transferred to another tank.

How are grapes fermented to make wine?

In order for it to ferment, the must must be placed in pots, jars or demijohns. Solids from the crush must be present during fermentation. In the production of red wine, the must must ferment together with the grape juice, the skins and seeds, among others.

How is grape wine fermented?

How is wine fermented? In the first place, and after having the grapes and/or the must vatted, a first fermentation takes place that is common to all the wines. In this fermentation, the grape sugars begin to transform into ethanol in an environment with the presence of oxygen and a controlled temperature.

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