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Like apples and other fruits, the flesh of a banana when cut can react with oxygen gas and turn brown. [1] X Research Source Although it doesn’t affect the taste, browned banana slices don’t look good, especially when used to garnish dishes such as fruit salads or desserts. However, you do not need to worry because with just the following tips, the simplest is to use lemon juice , you can preserve and prevent sliced bananas from browning:
Steps
Use Fruit Juice
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Buy fruit juice or make your own. There are a variety of fruit juices that you can use to prevent bananas from turning brown. You can use fresh or store-bought juice, and only half a cup of juice is needed to preserve 1-2 bananas.
- Green lemon juice is the most famous ingredient used to prevent bananas from darkening. The use of lemon juice for the preservation of bananas is similar to that for the preservation of apples. [2] X Research Source In addition, you can use some of the following juices:
- Yellow lemon juice
- Orange juice
- Canned pineapple juice
- Canned grapefruit juice or fresh grapefruit juice
- Apple juice
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Cover the banana with juice. You can drizzle the juice over the banana slices or dip the banana slices in the juice. Or you can also soak the banana slices in the juice and let it soak for a few minutes. However, it should be noted that this method helps to keep the bananas fresh but may affect the taste of the bananas.
- Another quicker way is to put the bananas in a sealed juice bag and gently flip them over a few times.
- To minimize the taste change of bananas, use a little juice or pour into a spray bottle and spray a little on each banana slice.
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Use or store bananas. When soaked in fruit juice, bananas will take longer to darken. So you can rest assured that bananas will stay fresh when eaten raw or used to prepare dishes like banana bread, fruit kebabs, parfait desserts or fruit salads. Even if not stored in the refrigerator, bananas soaked in fruit juice can keep for several hours in a plastic container, so they are perfect if you want to use them for lunch.
- Sliced bananas soaked in fruit juice should be consumed during the day. Although the flesh is still fresh, the low temperature in the refrigerator can cause the banana peel to brown, so eat it early in the day. [3] X Source of Research If you store sliced bananas in the refrigerator, store them in an airtight container as much as possible.
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Restore bruised sliced bananas with pineapple or grapefruit juice. No need to worry too much when you see that the banana slice has darkened. You can lighten dark bananas by soaking them in canned pineapple or grapefruit juice for 10-15 minutes. Although the original light yellow color will not be restored, the banana will look fresher and tastier.
Use More Tips
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Use soda water. In addition to fruit juice, you can use soda water to help keep the bananas fresh and not brown. [4] X Research Source More specifically, soda water will not affect the taste of bananas. You can soak sliced bananas in soda water before eating or before storing.
- It is necessary to use the right soda water. Mineral water that has the same flavor as soda water but has a stronger taste will not be suitable for soaking bananas.
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Use tap water. Tap water isn’t really as effective as fruit juice or soda water, but it’s easy to find and cheap. [5] X Research Source You can soak sliced bananas in tap water before using.
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Use diluted citric acid. Citric acid (the same chemical that makes citrus fruits like lemons sour) is sold in its pure form and is used as an additive. In its pure form, citric acid is specifically used to prevent fruit from changing color during storage. The price of citric acid is also very affordable. However, it is difficult to find pure citric acid. It’s best to buy it at the grocery or grocery store. [6] X Research Sources
- To use citric acid, add 3 teaspoons to a cup of water and stir well. Then, soak the sliced bananas in the solution as usual. Undiluted citric acid should not be used as it has a very acidic taste.
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Use diluted vinegar. You can use vinegar similar to citric acid to keep fruit fresh. Like citric acid, vinegar is very acidic and needs to be diluted. Mix a few teaspoons of vinegar in a cup of water to dilute and then soak the sliced bananas as usual.
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Use soluble vitamin C. Ascorbic acid or vitamin C is another acid that can help prevent fruit from darkening. You can find vitamin C powder sold in supermarkets as a cold remedy. Then, dissolve the powder in water according to the instructions on the package and then soak the sliced bananas as usual.
- If you need to take vitamin C powder right away, you can crush vitamin C tablets into a powder. [7] X Research Sources
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Avoid exposing fruit to air. Sliced bananas will darken when exposed to oxygen in the air, so prevent the bananas from being exposed to the air in a few ways:
- Use wax paper. Cut bananas into even slices and arrange on a tray. Then, cut a square piece of parchment paper to fit the tray. Line the parchment paper over the bananas and gently press the paper to stick. This way, the bananas between the tray and the stencils won’t be exposed to the air.
- If you have time, you can cut the food wrap into small squares and arrange on each banana slice. Remember to remove the wrapper before eating the banana. [8] X Research Sources
- If you have a vacuum sealer, you can use it to store sliced bananas in a vacuum sealed container.
Advice
- If the banana is too dark and cannot be recovered, use it to make a dish where the color of the banana does not affect too much, such as banana bread or frozen bananas covered with chocolate. [9] X Research Source
- Keeping bananas fresh before slicing is a separate process. You can find articles with many useful tips on how to preserve whole bananas.
- Do not store sliced bananas for more than 24 hours.
X
This article is co-authored by a team of editors and trained researchers who confirm the accuracy and completeness of the article.
The wikiHow Content Management team carefully monitors the work of editors to ensure that every article is up to a high standard of quality.
There are 8 references cited in this article that you can see at the bottom of the page.
This article has been viewed 16,743 times.
Like apples and other fruits, the flesh of a banana when cut can react with oxygen gas and turn brown. [1] X Research Source Although it doesn’t affect the taste, browned banana slices don’t look good, especially when used to garnish dishes such as fruit salads or desserts. However, you do not need to worry because with just the following tips, the simplest is to use lemon juice , you can preserve and prevent sliced bananas from browning:
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