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Bananas, lemons, pineapples, golden kiwifruit, yellow watermelon, yellow plums and many apricots, peaches, pears and mangoes are commonly yellow when ripe. Others include grapefruit, pomelo, quince, canary melon, yellow passion fruit and Rainier cherries. Color varies by variety and growing conditions: some mangoes stay green or red when ripe, and a few yellow fruits, such as banana, kiwifruit and watermelon, are yellow only in the skin or only in the flesh. The fruit pages on this site describe each one.

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As green chlorophyll breaks down, yellow pigments such as carotenoids that were already present become visible, and some fruits also produce more of them. In many cases the yellow is simply unmasked rather than made from scratch, which is why a lemon that is still green-yellow looks mid-transition. Cool nights, warm days and light can influence how much color develops, so the same variety may look slightly different between regions and seasons.

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No. Color is one clue, but aroma, weight and a slight give under gentle pressure are often more reliable, especially for pineapple, mango, melon and peach. Some varieties stay green or red when ripe, and some fruit is waxed or dyed in commerce, so a bright surface does not always mean quality. Smell the stem end, feel the weight, press gently with the pad of your thumb and use color only to narrow the choice.

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Dessert bananas are sweet and eaten raw once the peel is yellow, while plantains are starchier and are usually cooked. Plantains can be used at green, yellow or nearly black stages depending on the dish, whereas a dessert banana is firm and starchy when green, soft and sweet when yellow, and very soft and good for baking when spotted. Both are botanical berries from large herbaceous plants that are often mistaken for trees.

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Not much. Citrus does not ripen much after picking, so what you buy is close to what you will get. Choose fruit that already feels heavy for its size, with fine-grained, slightly glossy skin and no soft spots or mold. A pale green tinge is not a problem, since some lemons are harvested before the skin has fully turned yellow. Thin-skinned lemons tend to be juicier than thick-skinned ones, which have more pith.

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Look for a fresh green crown, a sweet smell at the base and a fruit that feels heavy for its size. A pineapple will not get much sweeter at home, because it is generally harvested ready to eat, so choose carefully. No smell may mean underripe, while a strongly fermented or vinegary smell suggests overripe. Golden color often starts at the base, but a mostly green pineapple can still be sweet, so rely on aroma and weight too.

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It depends on the fruit. Apple and pear skin is commonly eaten, while banana, pineapple and melon rinds are not. Citrus zest, the thin colored outer layer, is widely used for flavor, ideally from unwaxed fruit or fruit scrubbed well under warm water. Mango skin contains compounds related to those in poison ivy, so a few sensitive people react to handling it. Wash fruit before cutting, even when you do not eat the skin.

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Fresh pineapple contains an enzyme that breaks down protein, which can irritate the mouth for some people. The effect is usually temporary and is common. The same enzyme is why raw pineapple stops gelatin from setting and why it is sometimes used in marinades. Cooking or canning generally deactivates it. Cooked or canned pineapple does not have this effect, so you can still enjoy it in baking, sauces and cooked dishes.

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Yes. Grapefruit and some related citrus can interact with certain medications. The US Food and Drug Administration says that besides grapefruit, Seville oranges and pomelos may have the same effect, and advises asking your doctor or pharmacist whether grapefruit juice interacts with your medicine. Read the medication guide or label too. If yours does interact, do not eat the listed fruits, and do not assume that any amount of grapefruit is harmless.

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Place the fruit in a loosely closed paper bag at room temperature, perhaps with a ripe banana, and check it daily. The bag traps the ethylene gas that ripening fruit gives off, and a ripe banana or apple releases plenty of it. This works for climacteric fruit such as bananas, mangoes, peaches and pears, but not for lemons or pineapples, which will not become sweeter. Avoid sealed plastic bags and direct sun, which encourage mold.

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Ripen climacteric fruit at room temperature first, then refrigerate when ripe to slow further change. Very cold storage before ripening can lead to dry, mealy flesh in some stone fruit, and many tropical fruits dislike cold when unripe. Citrus usually keeps longer in the refrigerator, generally lasting weeks, while a whole pineapple keeps only a few days. Store cut fruit covered and cold, and keep cut melon cold at all times.

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Many freeze well, including bananas, mango, peaches and papaya. Slice or peel them first, then use them in smoothies, sorbets or baking. Citrus juice freezes well in ice cube trays, and zest freezes in a small container, but do not freeze whole citrus if you want to use the slices fresh, as the texture changes. Freezing is a good way to save overripe fruit that you cannot eat in time.

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They develop as the peel ages and enzymes and oxygen act on compounds in it. Spotty bananas are usually very ripe, soft and sweet, and they are ideal for banana bread, pancakes and smoothies because the starch has turned to sugar. Judge a banana by smell, texture and any sign of mold rather than by spots alone. A large bruised patch or mushy dark area across the whole peel deserves a closer look for spoilage.

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No. Peaches can have yellow or white flesh, and the two types tend to differ in flavor: yellow-fleshed peaches usually taste classic tangy-sweet, while white-fleshed ones are often described as milder and more floral. The red blush on the skin is not the best ripeness clue; check the ground color beneath it, since a green undertone usually means the fruit was picked too early. Nectarines have the same two flesh colors.

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A freestone peach has a pit that separates easily from the flesh, which makes slicing and baking simpler. In a clingstone peach the flesh grips the pit, and these types are often chosen for canning. Which type you get depends on the variety, so ask the seller if it matters for your recipe. The same terms are used for other stone fruit, such as nectarines and apricots, wherever flesh either clings to or releases from the pit.

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Yuzu is valued for its fragrant zest and juice, used in sauces, drinks, broths and desserts rather than eaten whole. The fruit has a bumpy yellow rind, many seeds and little pulp, so the aroma is the main attraction: tart citrus with floral and slightly resinous notes. It is closely associated with East Asian cooking, including ponzu-style sauces. Fresh fruit can be hard to find outside its growing regions, so bottled juice and dried zest are common.

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Cook it. Quince is usually cooked, as in jam, paste, jelly, poached desserts or stews, because raw fruit is hard and astringent. It is high in natural pectin, so it sets easily, and a long, slow poach typically turns the flesh from pale to a rosy amber color. Quince stays hard and fragrant even when ready, so judge it by its yellow color and strong perfume rather than by softness. Let poached fruit cool in its syrup.

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Often yes, if you choose varieties that suit your climate. Citrus generally needs frost-free or nearly frost-free conditions, while peaches, apricots, pears and plums need a cold winter, so check your hardiness zone and the variety's chill hours. Dwarf trees and large containers suit small spaces, and a lemon in a pot can be moved to shelter in cold weather. Expect a few years before a meaningful harvest, and ask a local nursery which varieties and rootstocks do well.

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No. The US National Kidney Foundation says people with kidney disease should avoid star fruit, because it contains a neurotoxin that healthy kidneys can clear but diseased kidneys cannot. It lists hiccups, mental confusion and seizures among the signs of poisoning. If you have a kidney condition, avoid it and speak with your healthcare provider or dietitian. Star fruit is also known as carambola.

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Stop eating the suspected fruit and speak with an allergist or doctor, who can advise on testing and safe choices. Several tropical fruits are associated with reactions in some people, certain fruits share allergens with latex, and stone fruit can cause itching or swelling of the mouth in people sensitive to certain pollens. This site offers general information only, and it cannot tell you which fruits are safe for you personally.

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