Keep Bananas Fresh Longer (slices, too!)


Step 3: Keep Banana Slices Fresh

Picture of Keep Banana Slices Fresh
To prevent your banana slices from browning, you can use the same trick you've seen for apples: acid!

Just toss your banana slices in some lemon juice to inhibit enzymatic browning. Full coverage, particularly on the cut sides, will help prevent the slices from turning brown. In addition to lemon juice, vinegar will also work. So would sulfuric acid, for that matter, but you probably don't want to eat it afterwards.

The acid disrupts the enzymatic breakdown process and prevents your sweet, sweet banana slices from turning into mushy little brown hockey pucks.

A dab'll do ya, so keep your acid in the teaspoon range. Or you'll just have sour bananas.
Ok, this makes sense, I just bought a bunch and I'm going to try separating them. Like lucylouwho, I've been struggling too with my bananas, so funny.
lucylouwho2 years ago
This is great! I have been struggling with my bananas for a long time. Now I know know what to do with them!! I have to have calcium and I eat them day and night!
kbeard32 years ago
Great idea- and thanks for the science! I tried it and it really does work.
Romi872 years ago
Thank you
Nyxius2 years ago
ethylene gas is also heaver than air so keeping them off surfaces helps.
wilgubeast (author)  Nyxius2 years ago
That is super useful! Be sure to keep your bananas lifted, people.
No, not those bananas... The real ones...lol
Thank you. Instead of lemon juice, orange juice does the job being not as acid.
batkinson12 years ago
lt.greg... "I'm Chiquita banana and I've come to say - Bananas have to ripen in a certain way- When they are fleck'd with brown and have a golden hue - Bananas taste the best and are best for you - You can put them in a salad - You can put them in a pie-aye - Any way you want to eat them - It's impossible to beat them - But, bananas like the climate of the very, very tropical equator - So you should never put bananas in the refrigerator."
mrsthursday2 years ago
Personally, I love bananas a little underripe so this is a great one for me. When the fruit does get a bit overripe peel them and put them in a freezer bag in the freezer & they'll be ready for making Banana Bread when you get the baking bug. I learned that at cooking school.
sridhara2 years ago
A more simpler or much easier way to keep bananas from fast ripening/deteriorating is to keep them ina a black colored plastic or paper bag. This works fine and I regularly use this method.
How much longer do they last?
Taimur2 years ago
For those that don't know the more brown marks the banana has the better is for your health it come out some research short time ago related to that, it releases a compound TNF that helps the human body increasing is natural defenses.
wilgubeast (author)  Taimur2 years ago
Protein content increases as well.
onemoroni12 years ago
Good simple ideas. I have heard that simply separating them will slow the ripening process. I separate mine and wrap a few in plastic and put in the fridge for later. The ones in the fridge the skin turns dark, but the flesh is firm for up to a week and nicely edible.
You can melt candle wax and glaze the stems. Dipping the whole banana in wax woul prevent it form ripening fast in the fridge too, but it will be hard to peel the wax off later.
Lt.Greg2 years ago
Interesting science lesson. Keep them in the fridge.
Putting bananas in the fridge makes them ripen faster, not slower.
NickGriffin2 years ago
The most recent issue of Cook's Magazine states that they tested 1- 2 Tablespoons Honey diluted in 1 Cup water as a substitute for the traditional Lemon Juice or Lemon Juice/water to keep fruits from browning with excellent result. I would imagine this would work for Banana Slices as well (?). I haven't tried it yet, but I often find the lemon residue less palatable...honey would be a natural sweetener as well. Thanks for your research into the never-ending quest for keeping bananas from over-ripening too soon!
no_skunk2 years ago
thanks! I'll surely try that!

We always buy too many bananas and than i have to freeze them in stocks, my freezer is a banana freezer at this point...