
Plastic waste is a pressing issue, and reusing plastic containers is a great way to reduce waste. Mayonnaise jars are a common household item that can be reused for a variety of purposes. From food storage to craft organisation, these jars can be given a second life. However, it is important to note that not all plastics are created equal, and some may contain harmful chemicals or be unsafe for certain uses, such as canning. With a bit of creativity and caution, reusing mayonnaise jars can be a simple and sustainable practice.
| Characteristics | Values |
|---|---|
| Reuse for food storage | Dry food such as cornflour, flour, rice, pasta, cereals, oats, dried beans, trail mix, candy, baking soda, corn starch, dried fruit, etc. |
| Reuse for freezing food | Soups, sauces, gravies, leftovers |
| Reuse for storing non-food items | Small craft items, hair clips, flower seeds, small toys, screws, nails, paintbrushes, glue sticks, buttons, beads, etc. |
| Reuse for gifting | Decorate/cover the tops and use them as gift boxes |
| Reuse for storing money | Use as a piggy bank |
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What You'll Learn

Store dried food, e.g. cornflour, flour, rice, pasta, etc
Mayonnaise jars are a great way to store dried food. They are food-grade, so you can safely reuse them for storage. They are perfect for storing dry goods like cornflour, flour, rice, pasta, and other similar items. The jars are a convenient size, and the plastic screw-on lids make them ideal for keeping food fresh.
To prepare the jars for reuse, thoroughly clean them with hot, soapy water. Rinse them well and let them dry open for around a week to ensure any odours from the mayonnaise disappear. If you want to use the dishwasher, be cautious as plastic may melt, and it is also easier to scratch, which can harbour bacteria.
The jars are a great way to keep your kitchen organised and your food fresh. They are especially useful if you buy bulk dry goods and want to keep them in smaller containers. The clear plastic also allows you to see what is inside at a glance.
You can also decorate the jars and use them for gift boxes, or use them to store non-food items like craft materials, small toys, or hair accessories.
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Use for freezing soups, sauces, gravies, and leftovers
Plastic mayonnaise jars can be reused for freezing soups, sauces, gravies, and leftovers. However, it is important to note that not all plastic jars are suitable for freezing. To ensure your safety, check the recycle number stamped at the bottom of the jar. If it is #1, it is not safe to use as it may leach chemicals that can cause cancer and other diseases.
Before reusing the jar, make sure to wash it thoroughly, especially if it will be used for food storage. Mayonnaise jars can be washed by hand or in a dishwasher. It is also recommended to use clean, dry jars for freezing.
When freezing soups, sauces, or leftovers in plastic mayonnaise jars, leave enough headspace in the jar as the liquid will expand as it freezes. It is also important to consider the portion size. Instead of freezing an entire batch in one container, divide it into smaller batches so you can easily grab what you need without defrosting the entire amount.
Freezer bags are another option for freezing sauces. They allow you to snap off a small portion and add it directly to your cooking without worrying about defrosting. However, plastic mayonnaise jars can be a more durable and space-efficient option for freezing liquids.
Plastic mayonnaise jars can also be used for storing dry goods, crafts, and small items like screws. They are a great way to organize your space and reduce waste by reusing containers.
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Store small items, e.g. hair clips, craft items, screws, etc
Plastic mayonnaise jars are a great way to store small items like hair clips, craft items, and screws. They are durable, transparent, and have a wide opening, making them easily accessible and perfect for storing small items.
For those with children, these jars can be a great way to teach organisation skills. Simply clean out the jar, remove the labels, and let your kids fill them with small toys like hair clips, craft items, or even Matchbox cars. The transparent jar allows kids to see what's inside, and the wide opening makes it easy for little hands to access their favourite items.
Mayonnaise jars are also ideal for storing craft supplies. Whether you're a crafter yourself or have kids who love arts and crafts, these jars can keep buttons, beads, glue sticks, and other small items organised and within easy reach.
Additionally, these jars can be handy for storing small hardware items like screws, nails, and paintbrushes. Keep one in your garage or workshop to easily find what you need for your next project.
Lastly, don't forget to give your jar a quick wash with hot soapy water and let it dry open for a week to eliminate any odours before reusing it.
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Use for gift boxes, e.g. to hold soaps
Plastic mayonnaise jars can be reused in a variety of ways, including as gift boxes for soaps. Here are some tips and ideas to get you started:
Cleaning and Decorating Your Jars:
Firstly, ensure your mayonnaise jars are thoroughly cleaned before reusing them. Hand wash them with hot, soapy water, rinse well, and let them dry completely. This will help remove any residual odours or grease. You may want to let them dry open for a week or so to ensure any smells dissipate.
Once your jars are clean, you can decorate them to make them more gift-worthy. Consider covering or painting the lids in a colour or pattern of your choice. You could also add ribbons, bows, or stickers to the outside of the jars to make them more visually appealing.
Filling Your Jars with Soaps:
When it comes to filling your jars with soaps, you can get creative. Consider making your own soaps at home and cutting them into shapes that fit your jars. You could also purchase soaps in bulk and break them into smaller pieces to fit. If you're using liquid soap, you can simply pour it into the jars and add a pump dispenser.
Presenting Your Gift Boxes:
To present your soap-filled mayonnaise jars as gift boxes, consider adding some extra touches. Tie a ribbon or bow around the neck of the jar, or attach a gift tag with a personal message. You could also place the jar inside a decorative bag or box to complete the gift presentation.
Other Ideas for Reusing Mayonnaise Jars:
In addition to using them for gift boxes, mayonnaise jars can be reused in various other ways. You can use them for storing dry goods like rice, pasta, beans, or candy. They can also be handy for organising craft supplies, holding coins, or even freezing soups and sauces.
So, before you toss those plastic mayonnaise jars into the trash or recycling bin, consider giving them a new life as gift boxes for soaps or any of the other creative reuse ideas suggested above!
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Store flower seeds
Plastic mayonnaise jars can be reused to store flower seeds. Here are some tips on how to do this effectively:
Firstly, ensure that the jars are clean and dry before storing any seeds. You can reuse the plastic screw-on lids that come with the jars, or decorate and cover the lids for a more personalised touch. If you are using the jars for long-term seed storage, it is important to reduce humidity and keep the seeds dry. Aim to maintain a relative humidity below 60% and avoid exposing the seeds to high humidity, as this will decrease their viability.
To achieve dry conditions, consider keeping the jars in a cool, dark place, such as a shelf in a garage or a dark corner of a cupboard. Exposure to sunlight and high temperatures will negatively impact the seeds' viability, so it is best to avoid storing them in direct sunlight or areas with temperatures above 90 degrees Fahrenheit.
You can also use the plastic mayonnaise jars for short-term seed storage. In this case, you can store the jars in a refrigerator or deep freezer. Package the seeds in moisture-proof containers to ensure they remain viable.
By reusing plastic mayonnaise jars for flower seed storage, you can reduce waste and contribute to a more sustainable lifestyle.
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Frequently asked questions
Clean mayonnaise jars can be used for storing dry food such as cornflour, flour, rice, pasta, dried beans, and baking soda. They can also be used to store craft items, small toys, and hair accessories.
Yes, larger plastic mayonnaise jars with screw-on lids can be used for freezing soups, sauces, gravies, and leftovers.
Mayonnaise jars are made of thin plastic and are not suitable for canning or storing hot food.











































