Sofia Martinez
Whether or not you can put a plastic bag in the washing machine depends on the type of bag and the temperature of the wash. Some plastic bags, such as reusable grocery bags made from cotton, hemp, or polyester, can be washed in a machine on a cold cycle. However, machine washing can shorten the lifespan of the bag and cause shrinkage and wrinkling, so hand washing or wiping down with a disinfectant spray is often recommended. Biodegradable plastic bags should not be washed in a machine on a hot setting as this can cause the release of microplastics.
| Characteristics | Values |
|---|---|
| Plastic bags in the washing machine | Not recommended |
| --- | --- |
| Reason | Can ruin the bag and shorten its lifespan |
| --- | --- |
| Alternative | Handwashing or wiping down with a wet cloth |
| --- | --- |
| Type of bag | Cotton, hemp, poly-canvas, nylon, poly-nylon, jute, recycled PET, laminated polypropylene, laminated recycled PET |
| --- | --- |
| Type of wash | Cold delicate cycle |
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What You'll Learn
Biodegradable plastic bags and microplastics
While it may be tempting to put a plastic bag in the washing machine, it is important to exercise caution. Some people have reported washing their reusable plastic bags in the machine without any issues, opting for a quick wash cycle with a small amount of detergent. However, it is important to note that not all plastic bags are created equal, and there are potential risks associated with washing certain types of plastic bags.
When it comes to biodegradable plastic bags, it is important to understand their potential impact on the environment. Biodegradable plastic is designed to break apart naturally in the environment over time. However, the lack of federal standards and regulations for biodegradable products means that there is no guarantee of how long this process will take, and it can vary from months to centuries depending on the specific product. Additionally, the term 'biodegradable' does not necessarily mean that a product is eco-friendly. In fact, compostable and biodegradable products can have a heavier environmental and carbon footprint than single-use plastics due to the emissions created during the agricultural phase.
Furthermore, during the biodegradation process, biodegradable polymers can break down into microplastics. A study found that biodegradable poly (butylene adipate-co-terephthalate) (PBAT) generated a much larger quantity of plastic fragments in aquatic environments compared to common non-biodegradable low-density polyethylene (LDPE). Additionally, exposure to sunlight was found to increase the rate of PBAT microplastic formation. This is particularly concerning as it contributes to the growing problem of microplastic pollution in our oceans and freshwater systems.
To make matters worse, the lack of regulation around compostable and biodegradable plastics has led to consumer confusion. Manufacturers can label their products as biodegradable or compostable without meeting any standards, as most states do not require certification. This means that consumers may be unintentionally contributing to the microplastics problem by purchasing products that they believe are environmentally friendly, but in reality, may take a long time to degrade and contribute to pollution.
While the development of biodegradable plastics is a step towards tackling the pollution caused by conventional polymers, it is important to recognize that it is not a perfect solution. More research and regulation are needed to ensure that biodegradable plastics do not contribute to the microplastics crisis and that consumers have accurate information to make informed choices. In the meantime, individuals can take matters into their own hands by reducing their plastic consumption, properly disposing of plastic waste, and supporting companies that prioritize sustainable practices.
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Washing reusable plastic bags
It is important to keep your reusable plastic bags clean. This can be done in several ways, depending on the type of bag and the level of cleanliness desired.
Firstly, always check the bag's cleaning instructions. Some bags may be washed in a washing machine on a cold, delicate cycle, then dried inside out. However, some bags are not machine washable, so it is important to check the care instructions. If you are unsure, it is best to hand wash the bag.
Hand washing can be done by filling a sink or small tub with warm water and antibacterial soap or a good dishwashing liquid that contains a degreaser. Submerge the bags and let them soak for a few minutes. Use a sponge or cloth to wipe down the inside and outside of the bags, paying attention to the seams, nooks, and crannies. Rinse the bags with warm or cold water to remove any remaining soap, then turn them inside out and dry them completely. You can also use a disinfectant spray or antibacterial spray cleaner to wipe down or spray the inside and outside of the bag, being sure to clean the inner seams.
Some bags, such as Ziploc Endurables, can be washed in the dishwasher. Rinse the bags with warm or cold water first to remove loose food particles, then place them upside down on the top rack of the dishwasher. If washing by hand, you can also use vinegar to remove smells from the bags. Fill the bag with equal parts warm water and vinegar, let it sit for a few hours, then rinse thoroughly.
It is important to store your bags properly after cleaning. Ensure they are completely dry before storing, as storing damp bags can cause mildew growth.
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Washing plastic bags with meat and produce
While it is possible to wash plastic bags in the washing machine, it is not recommended to wash plastic bags that have been used to store meat or produce. This is because they can harbour microbes and pathogens from raw meat, poultry, or fish that may be difficult to remove completely. It is also challenging to wash away all the tiny pieces of food from a dirty bag.
If you must reuse plastic bags that have been used to store meat or produce, it is recommended to wash them by hand. Start by adding some warm water and a drop of antibacterial dish soap to the bag. Zip it shut and gently shake the soapy water around inside. Be sure to remove any lingering bits of food. Open the bag, dump the soapy water, and rinse well to remove the soap and wash away any debris. Allow the bags to completely air dry before using them again.
Reusable bags made from woven or nonwoven polypropylene, a form of plastic that can be made from recycled plastic containers, can be machine-washed. To do this, use a gentle cycle with soap and cold water, then line dry the bags.
There are also reusable produce bags made from materials like nylon that can be washed in the washing machine. These bags are designed to allow you to wash produce right in the bag, reducing the need to wash the bag separately.
It is important to note that proper care of reusable bags is necessary to prevent the growth of germs, mould, and bacteria. This includes washing bags after each use, wiping insulated bags with disinfecting or sanitizing cloths, using separate bags for raw meats and produce, and storing bags in a cool, dry environment where air can circulate.
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Handwashing vs. machine washing plastic bags
Plastic bags can be washed in a washing machine, but it is generally recommended to hand wash them to avoid potential damage or ripping. Reusable bags, in particular, require proper care to prevent the growth of germs and mould, so regular washing is important.
Handwashing plastic bags is a straightforward process. You can turn the bag inside out, scrub it with soap and water, and then rinse and dry it. Turning the bag inside out ensures that the inside, which often comes into contact with food, is properly cleaned. Some people also recommend using a sponge with a built-in detergent dispenser to scrub the bag, paying extra attention to the corners. After handwashing, the bag can be dried with a towel or cloth, or it can be hung up and allowed to air dry.
Machine washing plastic bags is also an option, but it may not be suitable for all types of bags. It is generally recommended to use a gentle cycle with cold water and a small amount of detergent. Some people choose to wash their reusable grocery bags in the washing machine every few months without any issues. However, others have expressed concerns about potential damage, such as ripping, if the bag is machine-washed.
The decision between handwashing and machine washing plastic bags ultimately depends on personal preference and the specific care instructions for the bag. Handwashing may provide more control over the cleaning process and reduce the risk of damage, while machine washing can be more convenient and comprehensive. It is important to follow the care instructions provided by the manufacturer to ensure the longevity of the plastic bag.
Regardless of the chosen cleaning method, it is crucial to ensure that the bags are thoroughly dried before storing them. Storing damp bags can promote the growth of bacteria, so it is recommended to store them in a cool, dry, and well-ventilated area. Additionally, separate bags should be used for different purposes, such as designated bags for raw meats, seafood, produce, and non-food items. This helps to prevent cross-contamination and maintain the cleanliness of the bags.
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Drying plastic bags
One popular method is to use a drying rack specifically designed for drying plastic bags. These racks typically have multiple rungs that can be used to hold the bags open, allowing for proper air circulation and quicker drying. Some examples include the IDEATECH Bag Rack, Peekia Reusable Bag Drying Rack, and LEKUSHA Reusable Drying Rack, which can be purchased online. These racks are often made from stainless steel or other food-safe materials and can also be used to dry bottles, cups, and other kitchen items.
Another method is to create a DIY plastic bag dryer using household items. One creative idea is to use a toothbrush holder or a mason jar filled with pebbles and chopsticks. The chopsticks are inserted through the holes of the toothbrush holder or drilled into the mason jar, providing a place to hang and dry the bags. Alternatively, a baby bottle drying rack or a simple wooden rack can be used to hang plastic bags upside down until they are dry.
For those with limited space, a creative solution is to use a jewellery tree or even hooks to hang and dry plastic bags. Others have suggested using clothespins to pin the bags to a thin curtain rod or hanging them over a spatula in the utensil crock. Some people also opt for air-drying their plastic bags by placing them on a washing line or propping them open around the kitchen.
It is worth noting that some people choose to dry their plastic bags in a tumble dryer without specifying the type of plastic bag. However, it is generally recommended to air dry or use a drying rack to avoid potential damage or melting of the plastic bags.
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Frequently asked questions
Yes, you can put plastic bags in the washing machine, but it is not recommended. If you must, use cold water only and do not put them in the dryer. Machine washing can shorten the bag's lifespan and cause it to ruin.
Turn the bag inside out and wash it with a load of laundry using a small amount of detergent. Use a cold water delicate cycle.
Cotton and hemp reusable grocery bags are machine washable and the easiest to wash. Polyester reusable grocery bags, specifically 'poly-canvas' bags, can also be machine washed.
