How to Quickly Ripen an Avocado Overnight

Having to wait for your avocados to ripen before you can eat them is a pain. Fortunately, there are things you can do to speed up the ripening process so you can enjoy your avocados sooner.

Things You Should Know

Place the avocado in a brown paper bag with 2-3 other pieces of fruit, like bananas or apples. The gas emitted from the fruit will speed up the ripening process.
If you already cut open the avocado, sprinkle lemon or lime juice over it, then wrap it in plastic wrap.

Method 1

Method 1 of 3:

Ripening an Uncut Avocado

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1
Place the unripe avocado into a brown paper bag. The bag is used to trap the ethylene gas, which ripens the avocado.^{[1]XResearch source} Make sure there aren't any holes in it!
- The paper bag is just a trap. If you can devise some other mechanism that will trap in the air in the same way, great! That can be used, too. Your grandma might tell you to store it in the flour bin, but you may have to settle for the empty McDonald's bag.
2
Add a banana, apple, or tomato to the brown paper bag. Bananas are best, but the other fruits will do it, too. Some prefer using an apple because it can be used over and over again, even after it becomes old and wrinkly - it still emits gas.^{[2]XResearch source} If you have none of these, but another avocado or two, put them all together.
- These fruits emit more ethylene gas than other fruits. And the more ethylene gas they produce, the quicker everything will ripen.^{[3]XResearch source}
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Keep it out of sunlight; 65º-75º F (18º-24º C) is best. If you don't have extra fruit in your bag, this will take 2-5 days.^{[4]XResearch source}
4
Check regularly. The added fruit will speed the ripening process considerably and it should ripen within 1 - 3 days.^{[5]XResearch source} Your avocado is ready when it is easy to peel; feel it to see if it gives slightly as sometimes it's hard to tell by colour.
- An unripe avocado will be nice and green. As it ripens, it will get hints of purple and black^{[6]XResearch source} (that's when you can use it in about 2 days). When it's ready for your next meal, it's so dark green/brown it's practically purplish black.^{[7]XResearch source}
  - Once it's ripe, it will keep in the fridge for a few days, but it will lose its taste as time progresses.

Method 2

Method 2 of 3:

Ripening a Cut Avocado

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Since your avocado is open and vulnerable to the world, keep it from turning brown and too mushy with an acidic agent like lemon juice.^{[8]XResearch source} You want it to ripen, not ruin.
2
Cover it in clear plastic wrap. Place the two halves back together and wrap it in plastic wrap as if it were whole. Place it in the refrigerator.
- If you don't have plastic wrap, use an airtight, resealable container.
The length of time it needs to ripen all depends on how far along your avocado was in the process. Take it out and prod it -- when it becomes soft and seems edible, give it a taste test. If it's not quite there, put it back in.

Method 3

Method 3 of 3:

Storing and Using Your Avocado

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Putting them in the refrigerator is a no-no. They will not ripen in cold temperatures.^{[9]XResearch source} If you do absolutely nothing (apart from placing it on your countertop) your avocado may take up to six days to ripen. You can place the avocado in the refrigerator if you want to delay ripening; it will keep longer there than on the counter. A day or two before you need it, take it back out and ripen in a bag as noted above.
2
For cut, sliced, or mashed avocados, use lemon juice. Even if it's in guacamole form, sprinkle a bit of lemon, lime, or even orange juice (so long as it's fresh!) over your avocado. The acid will slow the browning process (otherwise known as oxidation), prolonging your avocado's life.
- If you're starting to see brown, you don't need to throw it all away. Just scoop out the brown parts and get to using the rest before it goes, too.
- If your avocado is cut in half and not mashed or chopped, you can avoid flavoring it with lemon by simply running water over the cut surface, and putting it in the fridge. It will look worse than with lemon juice, but that's a skin that actually keeps the rest of it fresh for longer. The thin browning skin peels back easily, and you have a fresh, avocado-flavored avocado.
3
If bad becomes worse, puree your avocado and freeze it. If your avocado is prime time to be used, but your schedule just isn't allowing it, puree it and put it in the freezer. Don't freeze it whole, the taste will disintegrate. You can then still use the avocado for dips and spreads, etc.
- Obviously, your avocado is best if not frozen. This should be a measure taken only if it cannot be eaten fresh.
- Alternatively, you can also pickle cubed avocado to preserve it if frozen mashed avocado doesn't appeal to you.
4
Monitor the stages of ripeness. Hopefully, you've had a few days to bond with your avocados. If you've been watching them, you'll have a good grasp on how far along in the process they are. At different stages, they'll yield different results.
- If your avocado is just starting to turn ripe, it will be less directed by heat. You can grill or bake it more easily.
- If your avocado took a while to ripen but finally did, it should produce slices that will do well in salads and salsas. The firm slices will look beautiful on your dishes!
- If you have a bunch of ripe avocados, turn 'em all into something cream-based. Think flans, ice cream, or cheesecakes. An excuse to experiment!

Community Q&A

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Question
How do you ripen an avocado in one day?
Community Answer
Put the avocado in a bag, either paper or plastic, along with a ripe banana or apple. As the apple or banana ripens, they give off a gas which causes other fruits around them to ripen more quickly as well.If the avocados are very unripe, it may take two days, but the ripe banana or apple trick will speed up the ripening process considerably, and should do the trick in a day or two.
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Question
Are avocados sweet when they are brown?
Community Answer
If the avocado it brown on the inside, that means it is overripe and will actually taste bitter.
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Question
When the avocado is kept for some days for ripening, it becomes black at the ends and I see fungal growth on it. I'm not comfortable using it then, and I throw it out. How can I properly ripen it?
Community Answer
Don't throw it out. Wash it well and dry, then cut in half. Cut off the dark parts. The rest will be fine to eat.
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Tips

Filling a bag with flour is also a possible alternative ripening method.^{[10]XResearch source}
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It is also possible to just use the brown paper bag; it won't ripen as quickly as when fruit is added but it will speed up ripening more than leaving it uncovered.
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If you need to quickly ripen your avocado, you can try freezing and thawing it like a banana, but it may affect the texture.
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Warnings

Refrigerating avocados does the opposite - prevents them from ripening. This is good for longer storage but not for faster ripening.
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Do not microwave your avocado. You may find sources on the internet that say it's doable (and it is. After all, you can technically microwave anything), but it will destroy the taste of your avocado.^{[11]XResearch source}
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