Yes, you can absolutely store bananas in the fridge. Just keep in mind that the cool, dry climate slows the ripening process, which is why bananas aren't refrigerated in the supermarket. In other words, if you put green, unripe bananas in the fridge, they're likely to stay that way.
Bananas grow in hot climates, so they are unused to the cold. If they're kept at a cold temperature, the enzymes that enable them to ripen are inhibited. And as those enzymes become inactive, other enzymes operate more efficiently. Some cause cell damage, while others (browning enzymes) cause the skin to blacken.
Keep them cool and protected from the light: Bananas should be stored at around 12°C, as they will ripen quicker if they are too warm. Pop them into the fridge: If you want to store your bananas correctly, you can certainly store them in the fridge.
Bananas are picked green and ripen at room temperature. Refrigerating them not only causes the skin to darken, it slows down or stops ripening. So, it is best to keep them out of the fridge until they are fully ripened. At that point refrigerating them will help keep them from becoming over ripe.
Do bananas last longer in the fridge or on the counter? If a banana is already ripe, it can last longer kept in the refrigerator as it will prevent further ripening. But if a banana isn't already ripe, don't store it in there as it won't ripen – you should keep green bananas out of the refrigerator.
Once ripe, they keep for 2 to 3 days at room temperature and between 7 and 10 days if you refrigerate them. Cut or peeled bananas last 3 to 4 days in the fridge.
Fruits That Should Not Be Stored in the Refrigerator
Apricots, Asian pears, avocado, bananas, guava, kiwis, mangoes, melons, nectarines, papayas, passion fruit, pawpaw, peaches, pears, persimmons, pineapples, plantain, plums, starfruit, soursop, and quince will continue to ripen if left out on the counter.
Despite the fact that the banana peel will turn dark brown, making it appear “bad”, the part you eat inside actually stays quite good in the refrigerator. In fact, such banana selling companies as Chiquita and Dole recommend you do this to make the banana last longer in its perfect ripeness stage.
Bananas start ripening as soon as they're picked from trees—ethylene gas releases from the stems as soon as they're picked, but when you hang bananas from a hook, the gas works more slowly. Hanging bananas also prevents them from bruising on the counter, which they're more prone to do as they continue ripening.
Ethylene-producing fruits, such as apples, bananas, peaches and honeydew melons, should not be stored next to avocados, lemons, grapes, onions and other fruits or vegetables that are sensitive to this compound.
Supermarkets store most fruits in large refrigerated coolers in the back room. The fruit is pulled from the sales floor each night, and placed in the cooler to extend shelf life. Then it's restocked, & rotated the next morning. Some fruits & vegetables do not require refrigeration and are left on display overnight.
Ultimately, as long as your banana is not moldy, and is not slimy or overly soft and squishy when you remove the peel, it is safe to eat brown bananas. A banana with brown spots or freckles is fine. These spots are one indicator of ripeness (smell is another indicator—more on a banana's fragrance in a minute).
Bananas do not ripen significantly slower when they're separated. Both times I ran this experiment the bananas that were separated actually ripened faster than the bunch. And, wrapping the stem with plastic wrap didn't seem to change the speed of ripening.
They prefer the refrigeration. Apples keep longest when held at 31-36 degrees Fahrenheit. So, you want to keep them in the coolest part of the refrigerator. Most home refrigerators don't get that cold because the rest of your food would freeze, but the colder the better.
Bananas, like many fruits, release ethylene gas naturally, which controls enzymatic browning and ripening of not just itself, but other fruits nearby. Much of that offgassing takes place at the stem—or the crown—of the banana. By wrapping the crown of a bunch, you slow down the ripening process a bit.
In the United States, fresh, commercially produced eggs need to be refrigerated to minimize your risk of food poisoning. However, in many countries in Europe and around the world, it's fine to keep eggs at room temperature for a few weeks.
One of the most common ways to store blueberries is keeping a stash of fresh blueberries in the fridge. It's important to refrigerate fresh berries after a grocery delivery, trip to the store or visit to the u-pick farm. You can keep them in the original plastic clamshell or in a covered bowl or container.
They're full important nutrients, but eating too many could end up doing more harm than good. Too much of any single food may contribute to weight gain and nutrient deficiencies. One to two bananas per day is considered a moderate intake for most healthy people.
Bananas are rich in sleep-promoting nutrients like magnesium, tryptophan, vitamin B6, carbs, and potassium, all of which have been linked to improved sleep.
Eating bananas before breakfast or as part of a balanced meal may help promote satiety and aid digestive health. Bananas contain several important micronutrients, including potassium and vitamin C.
Ditch the Plastic Bag
Bananas that are stored in plastic bags will ripen faster. Instead, keep your bananas at room temperature in a cool, dark place to be sure they receive fresh, well-ventilated air. Bananas sitting in direct sunlight or near the stove will shrivel up and turn brown at a faster rate.