Tag Archive | "Yeast Cells"

Homemade Wine – 6 Tips To Remember


This list includes 6 Homemade Wine Tips You Should Remember…

The following areas are important for your homemade wine making. By following the following areas in detail you will make sure to get your recipe performing like it should.

Marking the volume on your Primary Fermentor:

Fill your 23 litre glass or plastic secondary carboy (11.5 litre if using Selection Special wine varieties) with water. Empty this volume into your Primary Fermentor and mark off the water level.

Temperature Factor:

It is important to keep the fermentation temperature constant (70 – 75°F). Yeast cells are sensitive to temperature.

Sanitizing Your Equipment:

Make sure all utensils and equipment are clean before use. Use a chlorine cleaning agent to sanitize your equipment. We suggest preparing a soaking tub solution made from your sanitizing agent. Instruments such as your wine thief, hydrometer, mixing utensils, and thermometer are constantly used – keep these soaking in solution until you need them and remember to rinse them thoroughly before use.

Water Quality:

Be sure to use good quality drinking water.

Racking Tips:

Racking your wine or beer (from primary fermentor to secondary carboy, or into a bottle) involves the risk of incorporating air into your wine or beer. To minimize the risk of “oxidation”:

    • Avoid splashing of wine when racking. Always keep the end of the siphoning hose below the surface of the liquid.
    • Always make sure that your airlock and bung are securely attached and level of water in airlock is properly maintained.

Cork Quality:

When bottling wine, be sure to use quality corks only. Higher quality corks give better protection against oxidation. Longer corks ( min. 1 3/4”) and those with little or no large fissures are preferable. Natural corks are generally better for long term aging. Check with your retailer for more details on the different styles of cork available.

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The Importance of Racking


The process of racking involves siphoning the wine away from the sediment. Sediment is primarily comprised of inactive or dead yeast cells. While yeast is beneficial to the must in the beginning, over time it becomes multiplied many times over. As each new generation of yeast is produced, older generations die off. Most of what you will see at the bottom of your fermentation container is dead yeast cells.

As the fermentation nears the end of the cycle, there should be a significant amount of active yeast cells which are beginning to wind down because they are running out of fuel; or sugar. After the sugars have become consumed the active yeast will begin to starve and feed on itself. An enzyme will be produced that will break down the inactive yeast cells. The purpose of this is to release the nutrients in the dead yeast cells that can be used by the yeast cells that are still active. This process is called autolysis. Over a period of time, an otherwise perfectly good batch of wine may be ruined as a result of this process.

Racking is also important because it can assist in the clarification of the wine. If wine is not racked, the end result will be wine that may be clear on top; however, the bottom will be somewhat thick and hazy.

The racking process is not terribly difficult. In fact, it is quite simple. A siphon is necessary for racking. The key; however, is to make sure that you siphon off the wine without stirring up any of the sediment. It should be noted that while food grade hosing can be used many winemakers do prefer to use what is known as a racking tube in order to rack their wine. This is because, if you are not careful; using a hose to rack the wine can cause the sediment to become stirred up and it may also move around. A racking tube fits on the end of the hose and serves as a type of wand that gives you control over where in the container you draw the wine.

In the old days, wine was racked by manually sucking on the end of the hose; however, today there have been numerous advancements made in winemaking equipment. One of those advancements is an automatic siphon that works with a pump in order to start the siphoning action.

Keep in mind that during the first two to three rackings, it is not essential to remove all of the sediment. You should try to siphon as much of the wine liquid as possible; however, even if you do bring up a small amount of the sediment this will be fine. It is during the final racking that it becomes imperative that you make sure that all of the sediment is left behind with none following through into the wine.

After the fermentation process has been completed, it you still need to rack the wine (such as when storing wine long-term in bulk) it may be necessary to add Campden Tablets to the wine. The purpose of this is to ensure that any air that may have entered the wine during the racking process is driven out. Campden Tablets will also help to minimize oxidation. Keep in mind that this is not a problem when racking wine while the fermentation process is ongoing as the CO2 that is produced during fermentation will naturally eliminate any air that may have been introduced.

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Troubleshooting Fermentation Problems


As we all know, fermentation is one of the critical stages of winemaking. Without fermentation, it is impossible to create wine. In some cases; however, you may find that you have problems with the fermentation process. Usually, these problems will take the form of either fermentation that just does not occur at all or else is too slow.

One of the reasons that this may occur is that the temperature was either too cold or too hot. Remember that yeast cells are live and in order to become activated they require a temperature that is between 70 and 85 degrees Fahrenheit. Ideally, you should aim for around 72 degrees; however, if you drop below 70 or go above 75 degrees, you will have problems. When the temperature is too cool, the fermentation will likely not occur at all. When the temperature is too warm; however, the yeast can become damaged and will also perform poorly.

This is why it is critical to ensure that you have a stable temperature in the room where you ferment your wine. If the temperature in the room fluctuates, you will generally have problems. Basements tend to make the best places for fermentation; provided the area does not become too cool during the winter. In that case, you can provide a small heat source. Making sure that your fermentation containers are not placed directly on the floor may also help. You can also use a thermometer to monitor the fermentation. A floating thermometer can be placed right in the wine and you can lift it out when you want to check the temperature.

Improperly starting the yeast can also result in problems with fermentation. This is also commonly due to problems with temperatures. Most yeast packets require the yeast to be rehydrated, or moistened, with some warm water prior to use. Ideally, this should not cause any problems. That is, unless the water temperature was too warm. Most yeast packets call for the temperature to be somewhere between 95 and 105 degrees. If the water exceeds these temperature limits even just a small bit, the yeast is likely to be destroyed. As a result, it is unable to support the fermentation process.

As a result, it is important to make sure that you actually verify the temperature of the water before you add the yeast. In addition, it is important to make sure that you do not leave the yeast in the water for too long. Generally, you will need to leave the yeast in the water for about fifteen minutes. If you walk off and forget about the yeast and leave it in the water for even a few minutes longer, you will also run the risk of destroying the yeast cells. Therefore, it is important to keep an eye on the clock and make sure that the yeast does not remain in the water for any longer than 15 minutes at the most.

Adding too much sugar can also cause problems in the fermentation process. Remember that while it is necessary for yeast to have sugar in order to produce alcohol, you can add in too much sugar. When the sugar level is too high, it may begin to have a detrimental effect on the ability of the yeast to produce alcohol. This is why it is critical to verify the amount of sugar that is already present in a batch from the fruit itself before you add in any additional fruit. Remember that the fruit itself will have its own amount of sugar. This level can vary from one fruit to another, making it even more important to verify the sugar content level. A hydrometer can be used for this purpose. If you have not previously used a hydrometer it is a good idea to invest in one and become acquainted with it. A quality hydrometer can help you to avoid many of the problems that might otherwise ruin a good batch of wine.

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The Process Of Manufacturing Wine


Wine, which is a drink we all know and love, is produced from fruits such as grapes and berries by drying and then fermenting them. Once the fruits ferment, the sugar within the fruit will turn into alcohol. The wine will display a different color, taste, and aroma depending on the type of fruit that it was made from.

Wine is divided into three main categories – fortified, sparkling, and table. Wine is known as fortified when a bit of brandy is added into it to enrich the alcohol. Wine is deemed as sparkling when it has the right level of C02. Table wine, the third category, is wine in it’s natural form – which is different from any other type of wine.

Normally, grapes are the preferred ingredients for making wine. They contain an equal amount of acid and sugar, which can’t be found in any other type of fruit. When drying the grapes, a high amount of heat is needed. To use grapes with wine though, you need to know the exact harvest season. If you don’t pick the grapes during the right time, your wine will suffer due to the level of increases in sugar and a lack of acidic extent.

During the beginning stages of wine making, the grapes or other fruit is crushed by a large cylindrical container that will deflate the juicy parts of the fruit into large bags that are attached to the machine. Next, the juicy part of the fruit is fermented through the use of heat. During this part of the process, present yeast will help to convert the sugar into alcohol. Once the sugars start to break down into alcohol, the wine will get a buttery flavor.

Next, is the settling. Settling involves the yeast cells or any other type of material flowing near the top of the wine. Once it is at the top, it is then filtered with all sediments being gathered on the filter. Aging is next, which is where the wine is tightly packed away in special contains that won’t allow any contact with air for months – sometimes even years. Once the wine has been aged, it is transferred into smaller bottlers then shipped out and sold.

When the wine is bottled, it is done in a way that makes it easy to distinguish the several types of wine. Colored bottles are preferred, as they will greatly reduce the risk of oxidation, damage, and several other possible risks. The bottles are also labeled according to their manufacturer and brand as well, which makes it easy for you to select the wine you are interested in.

Once you have bought a bottle fo wine, you should always make sure you store it in the right place. The most appropriate places to store wine is the basement, underground cellars, or anywhere else that is damp and cool. No matter where you store your wine at, you should always make sure that temperature stays around 55 degrees F.

Never store the wine in an area where the temperature fluctuates, as it can harm the wine. A humidity level of around 60% is also important, in order to keep the cork moist. If the temperature is too low, it can also harm the wine. When you buy your wine, you should always make sure that you store it in the right location. Wine that is properly stored and taken care of can be truly amazing once you drink it – making it more than worth the time and effort.

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