6
Steps On How To Keep A Cut Apple From Turning Brown
1
Use lemon juice. Apples turn brown due to an enzyme in the fruit that reacts with oxygen in the air. This process is known as "oxidation." Lemon juice works to prevent oxidation as it contains citric acid, which is an effective anti-oxidant.[1] You can use either freshly squeezed or reconstituted lemon juice, though it may be best to only use this method on sweeter types of apple, as the lemon juice will add tartness. To use lemon juice to stop your cut apples from turning brown, you can use one of two methods:
- You can apply lemon juice directly to the cut side of the apple by sprinkling the juice over the cut apple pieces in a bowl and tossing to coat. Alternatively you can use a pastry brush to rub the lemon juice onto the exposed flesh. These methods will give the apple a slight lemony taste.
- You can also use lemon to prevent browning by soaking the apple pieces in a bowl of cold water and lemon juice. You should use a ratio of one tablespoon of lemon juice to one cup of water. You only need to soak the apple for 3-5 minutes, before draining and rinsing.[2]
- Lime juice can be used in place of the lemon juice in these methods, as limes also contain the citric acid necessary to prevent oxidation. Pineapple juice is another good option.
2
Use salt. Salt is a natural preservative and can be effective in keeping cut apples from turning brown. To use this method, make a solution of 1/2 teaspoon of salt, dissolved in a quart of cold water. Place the cut apples in the salty water and leave to soak fro 3-5 minutes. Remove from the water and rinse thoroughly in a sieve or colander. The apple slices should remain unoxidized for some time.[2]- Don't worry about your fruit tasting salty - as long as you don't use too much salt, avoid soaking the apple for too long and rinse the apple thoroughly afterwards, your fruit will taste just fine.
3
Use carbonated drinks. Carbonated drinks which contain citric acid can also be useful for preventing your apples from turning brown. Lemon-lime soda and ginger ale are two popular options which can be used to soak your cut apples.- Simply pop the apples in a bowl of your chosen carbonated drink for 3-5 minutes, then drain. You can rinse the apple pieces, if you like, or leave them if you enjoy the added flavor!
- Seltzer water is another option that supposedly works to prevent apples from browning, so you can also give that a try if you have some lying around![2]
4
Use Fruit-Fresh. Fruit-Fresh is a powdered form of citric and ascorbic acids which is specifically designed to prevent fruit from turning brown. It claims to prevent food from browning for up to eight hours, and can be found in the canned goods section of most grocery stores.[3]- To use Fruit-Fresh, all you need to do is sprinkle half a teaspoon of the powder per cup of chopped apple and toss to coat.[3]
5
Blanch the apples. It is possible to blanch cut apples to prevent them from browning. Blanching basically deactivates the enzymes in the apple, preventing them from reacting with oxygen in the air.[4] To blanch your cut apples, simply place them in a pot of boiling water for approximately five minutes, then remove and rinse with cold water.- Be aware that using this method will significantly soften the texture of the apple, making it less suitable for eating on it's own. As a result, this method is best reserved for apples that you plan on using in cooking or baking.[5]
6
Cover in plastic wrap. A very simple method you can use to prevent apples from browning is just to cover the cut apple with plastic wrap. This technique works by keeping the air away from the apple flesh, thus preventing the apple flesh from oxidizing. Try to wrap the plastic around the apple as tightly as possible and avoid having any creases in the plastic wrap on the exposed side of the apple.- This method works best with half of a whole apple, rather than several pieces, as it is easier to wrap the plastic tightly around a single piece.
- Be aware that if any air at all remains inside the plastic wrap, the apple will begin to oxidize. As it is very difficult to eliminate all air, this method may not be the most effective.
More Steps Here- http://www.wikihow.com/Keep-a-Cut-Apple-from-Turning-Brown