Onions are a staple ingredient in kitchens across the world, their pungent aroma and savoury taste enhancing countless dishes from soups and stews to salads and sautés. Yet, the humble onion offers much more than just flavour and texture to the food we eat. Beyond its culinary applications, the onion has a long history of being utilised for a wide variety of purposes, some of which may come as a surprise to many.
The vegetable is rich in compounds that have been found to offer anti-inflammatory, antioxidant, and antibacterial benefits. Onions, in their many forms and uses, truly offer more than meets the eye. From health remedies and beauty treatments to home cleaning solutions and even sustainable living practices, onion proves that its value extends far beyond the confines of the kitchen.
Organic Fertiliser
Onion peels, often discarded, can be repurposed as an effective organic fertiliser. Packed with nutrients like potassium, phosphorus, and calcium, onion skins nourish the soil, promoting healthy plant growth. By composting onion peels or making a liquid fertiliser, gardeners can boost soil fertility naturally. This sustainable approach not only reduces waste but also enhances the vitality of plants. Using onion peels as fertiliser improves soil structure and water retention, making it an eco-friendly alternative to synthetic fertilisers.
Homemade Cleaning Solution
The natural antibacterial properties in onions make them excellent for disinfecting surfaces. Simply blending onion with water creates a solution that can clean countertops and cutting boards, and even remove odoursodors from the air. The sulfur compounds in onions also act as a natural degreaser, making it easier to remove stubborn grime. This eco-friendly, non-toxic alternative not only provides a sustainable way to keep your home clean but also minimises the need for harsh chemicals.=
DIY Potpourri
DIY potpourri made with onion skins is a fascinating use of onion beyond cooking. The natural oils and strong aroma of onion skins can be harnessed to create a fragrant, eco-friendly air freshener. Simply dry the onion peels and mix them with other aromatic herbs or spices like cinnamon or cloves. The scent of the onion provides a base, while the added elements create a balanced, inviting fragrance. Not only does this use reduce waste, but it also offers an effective, budget-friendly way to freshen up your home with natural ingredients.
Natural Pest Repellent
Onion, widely known for its culinary uses, can also serve as an effective natural pest repellent. Its strong scent repels various pests, including mosquitoes and flies, making it an eco-friendly alternative to chemical repellents. When cut and placed in areas prone to insects, onions release sulfur compounds that act as a deterrent. Additionally, onion skins can be used in gardening to repel aphids and other harmful bugs, promoting healthier plants.
Natural Colorants
Rich in antioxidants, it can be used to create dyes for fabrics, paper, and even cosmetics, offering an eco-friendly alternative to synthetic dyes. Depending on the extraction method, the vibrant hues range from golden yellows to deep reddish-browns. These natural colourants effectively provide a subtle, earthy tone without the harmful chemicals typically found in industrial dyes. As awareness of sustainable practices grows, onion peels offer an innovative way to repurpose waste, turning kitchen scrap into a valuable resource.