Composting eggplant peels with worms
Eggplant scraps, such as peels and ends, don’t just have to go to waste. You can compost them in your Bonter worm bin, provided you keep a few small things in mind. This way, you can turn even this into valuable compost for your plants.
Can eggplant go in your worm bin?
Yes, eggplant can go in your worm bin, but we give it a B rating. This means it can be added in moderation and with some attention. Eggplants consist largely of water, and the peel can be quite tough. The latter can slow down the composting process a bit. The seeds in the eggplant are not a problem for the worms.
How much eggplant can be added?
Add eggplant scraps in moderation. Due to the high moisture content, it is important to maintain a good balance with ‘brown’ material, such as shredded cardboard or paper. Too much moisture can disrupt the conditions in your worm bin. Start with small amounts and see how quickly the worms and microorganisms process it before adding more.
What to do instead? Alternatives & waste management
Since eggplant must be added judiciously to your Bonter, it is useful to consider alternatives if you have a lot of scraps. You can add eggplant scraps to a traditional outdoor compost heap if you have one. Small amounts can also go in the GFL (Green, Fruit, and Vegetable) bin if that option is available to you. The goal is always to waste as little food as possible, so if you handle it smartly, eggplant in moderation certainly fits into your Bonter routine.
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Tips for safe eggplant composting
To ensure eggplant scraps compost well, preparation is essential. Cut the peels and ends into small pieces (about 2-3 cm). This helps the worms get to them faster and speeds up the decomposition process. Bury the eggplant scraps under the bedding (such as paper or cardboard) to discourage any flies. Especially after adding eggplant, add some extra dry ‘brown’ material to help manage moisture. Thanks to Bonter’s integrated ventilation system, you generally have less to worry about regarding odors, but maintaining a good balance in the bin always helps.

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Frequently asked questions about composting eggplant
Can the seeds go in?
Yes, the small seeds from the eggplant can go into the worm bin without problems.
Do I need to peel the eggplant?
No, you don’t need to remove the peels, but it helps enormously if you cut them into small pieces because they can be quite tough.
Can cooked eggplant go in the bin?
It’s better to avoid cooked vegetables, especially if salt or fats have been used. This can attract pests or disrupt the balance in the bin. Fresh, raw scraps are best.
Will eggplant smell in the worm bin?
If you add eggplant in moderation and ensure enough dry bedding to absorb moisture, it won’t quickly smell. Excessive moisture can cause a less fresh odor. The Bonter has a built-in air filter that helps keep unpleasant odors out.
How long does it take for eggplant to be composted?
This depends on the size of the pieces and the activity in your worm bin. The tough peel can take a bit longer than softer materials, but generally, it is processed within a few weeks, especially if you cut it small.
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