Alexei Volkov
Wine is often stored and served in plastic containers, especially in situations where glass might be unsafe, such as by the pool. Plastic bottles are also preferred by consumers for their lighter weight, ease of handling, and smaller carbon footprint. However, storing wine in plastic containers can affect its taste and quality. Plastic is porous and contains chemicals, which can alter the wine's flavours and aromas. Additionally, plastic bottles can only preserve wine for up to six months before oxygen enters the bottle and causes oxidation, changing the wine's taste, smell, and colour.
| Characteristics | Values |
|---|---|
| Does wine in propylene break down the plastic? | It depends on the type of plastic. Poly(ethylene terephthalate) (PET or PETE) and Poly(vinyl chloride) (PVC) are not very soluble in ethanol or isopropanol, but prolonged exposure may cause crazing or stiffening. High-Density Polyethylene (HDPE) and Low-Density Polyethylene (LDPE) are resistant to most things. |
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What You'll Learn
Wine stored in propylene containers
Wine can be stored in polypropylene containers, but it is important to ensure that the container is made from food-grade materials. While some winemakers use trash cans or buckets as primary fermentation vessels, it is crucial to clean, scrub, and sanitise them before use. It is also worth noting that some plastics can be damaged by alcohol, although this depends on the specific type of plastic and alcohol. For example, poly(ethylene terephthalate) (PET or PETE) is not very soluble in ethanol or isopropanol, but prolonged exposure may cause crazing or stiffening due to the dissolution of plasticizers. On the other hand, high-density polyethylene (HDPE) is resistant to most things, including isopropyl alcohol, which is commonly used in cleaning products.
When considering wine storage, it is essential to choose containers that are specifically designed for food and beverage use. These containers should be labelled as "food-grade" or "NSF Listed," indicating that they meet the NSF Standard 2 for food equipment. Using containers that are not intended for food can introduce unwanted chemicals or contaminants into the wine, affecting its quality and safety.
Additionally, it is important to consider the compatibility of the wine with the container material. While polypropylene is generally considered safe for wine storage, there may be specific wines or chemicals used in the winemaking process that could interact with the plastic. Winemakers should always test the compatibility of their products with any container material to ensure the integrity of their wine and avoid potential issues such as off-flavours or leaching of chemicals.
In summary, wine can be stored in propylene containers, but it is crucial to ensure that the containers are made from food-grade materials and are compatible with the specific wine being stored. Proper cleaning, sanitising, and testing procedures should always be followed to maintain the quality and safety of the wine. Winemakers should also be aware of the potential for alcohol to damage certain plastics, although this may not be an issue for the specific container and wine combination being used.
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Isopropyl alcohol and plastic
Isopropyl alcohol, also known as isopropanol or rubbing alcohol, can damage some plastics. The extent of the damage depends on the type of plastic and the concentration of the alcohol. For instance, a user on Reddit reported that isopropyl alcohol discoloured their Xbox controller, leaving white stains all over it. However, another user on the same thread stated that isopropyl alcohol did not damage the plastic used in their medicine cabinet.
Isopropyl alcohol is often used for cleaning and sanitising, and it is sold in plastic bottles. This indicates that it does not automatically corrode all plastics. However, it can leave a white haze on some plastics, especially those that are shiny or polished. This is because isopropyl alcohol contains a bigger organic chain and is less polar than common alcohol (ethanol or ethyl alcohol).
To determine whether isopropyl alcohol is suitable for use with a particular plastic, it is necessary to identify the type of plastic and then refer to a chemical resistance or compatibility chart. These charts indicate that isopropyl alcohol has excellent compatibility with polypropylene, for example, although not at elevated temperatures.
A test can also be performed by putting a drop of isopropyl alcohol on the plastic surface and waiting to observe any changes. This can help to ensure that the plastic is not damaged or stained by the alcohol.
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Ethanol and its effect on plastics
Ethanol is a promising biofuel due to its beneficial effects on the environment. It can be produced from renewable feedstocks, and its potential as an alternative fuel source has been explored in recent studies. One such study explored the impact of blending ethanol with diesel fuel. The results showed that blending 10% ethanol with 20% plastic fuel reduced fuel consumption by approximately 7.9% and lowered carbon monoxide and hydrocarbon emissions.
Ethanol's effectiveness as a biofuel is not limited to its energy content but also extends to its ability to reduce the negative environmental impact of plastic waste. Chemical recycling, or pyrolysis, is a process that converts waste plastics into basic petrochemicals, which can then be used as fuel oil. By blending ethanol with diesel, the amount of plastic waste requiring disposal is reduced, contributing to a cleaner environment.
While ethanol has shown promising results as a biofuel, its interaction with plastics in certain contexts can have unintended consequences. For example, ethanol dispensed in plastic containers has been found to contain impurities, which can interfere with biochemical assays, specifically radioimmunoassays of progesterone. The impurities arise from the brief exposure of ethanol to plastic tubing and containers during the manufacturing and dispensing processes.
It is important to note that the impact of ethanol on plastics may vary depending on the specific type of plastic and the concentration of ethanol. In some cases, ethanol may cause certain plastics to swell, but it is generally considered safe to use for cleaning purposes without causing damage or releasing toxic gases. Overall, while ethanol has shown promising potential as a biofuel and can be effectively blended with diesel, caution is advised when using it with plastics in sensitive applications, such as biochemical assays.
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Wine's effect on different plastics
Polyethylene Terephthalate (PET) plastic is a common type of plastic used for beverage containers, including wine. It is lightweight, durable, BPA-free, and ideal for short-term use with lower-alcohol beverages. However, over time, PET plastic can degrade when in contact with strong or acidic wines. This is because wine contains ethanol, which can cause PET plastic to craze or stiffen due to the dissolution of plasticizers. Therefore, while PET plastic is suitable for casual use with wine, it is not recommended for long-term storage or for wines with high alcohol content or acidity.
Polypropylene (PP) plastic is known for its durability and resistance to wine. It is less likely to interact with the properties of the wine, making it a better choice for stronger or more acidic wines. PP plastic is also compatible with isopropyl alcohol, a type of alcohol commonly found in cleaning products, although it is not recommended for use at elevated temperatures.
High-Density Polyethylene (HDPE) is another durable plastic used in rigid containers. It is resistant to alcohol and many chemicals, but it is not commonly used for disposable cups due to its opaque appearance and thicker texture.
Overall, the choice of plastic for wine depends on the specific characteristics of the wine and the intended use of the plastic container. While some plastics, like PP, are more resistant to wine, the taste and nuances of the wine may still be better experienced when drinking from a glass.
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Cleaning plastics with alcohol
While alcohol is a powerful cleaning agent, it is not suitable for all surfaces. In general, it is best to avoid cleaning plastic items with alcohol. This is because alcohol can break down the plastic, causing it to become cloudy, discoloured, or cracked.
For example, isopropyl alcohol, often used for cleaning, can leave a white haze on plastics. This is due to the alcohol reacting with the plastic and causing a milky residue. The same is true for other alcohols, such as ethanol or ethyl alcohol, which can also corrupt the surface of some plastics.
In some cases, a quick wipe with a cloth dampened with a low concentration of isopropyl alcohol can be used to remove grease from plastics. However, this should be done with caution, as prolonged exposure to alcohol can cause damage to the plastic. It is recommended to test a small area first and to avoid using alcohol on clear or shiny plastics, as these are more susceptible to damage.
Instead of alcohol, it is recommended to clean plastic items with mild soap and water. A soft microfiber cloth or non-abrasive sponge can be used to dust or hand wash plastic items without causing damage. For daily upkeep, a mixture of dish soap and water can be used to wipe down surfaces.
Some plastics, such as polyethylene, are unaffected by alcohol and can be safely cleaned with isopropyl alcohol. However, it is always best to test a small area first to ensure that the plastic is not damaged.
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Frequently asked questions
Yes, it is safe to store wine in a plastic bottle, but only for up to six months. After that, the plastic will start to let oxygen into the bottle, causing the wine to oxidize and lose its original taste, smell, and colour.
Plastic bottles are often preferred over glass bottles due to their lighter weight, ease of handling, transport, and storage. They also eliminate the risk of broken glass and have a smaller carbon footprint.
Drinking wine from a plastic bottle may indicate a lower quality of wine and affect the overall drinking experience.
Plastic is porous and contains chemicals that can alter the wine's aromas and flavours.
Yes, plastic bottles may contain harmful BPAs that can act as hormone disruptors. It is recommended to use BPA-free plastic bottles to avoid potential health risks.
