如何判斷番茄是否壞了? 以及如何挑選好番茄

 

  

3 Ways to Determine Tomato Quality

1. First, Look at It.

First, take a look at it with your eyes.
A normal tomato should have flawless skin.
If your tomato has one or two scars, you can cut them off and use the remaining tomato.
But if the entire tomato is covered with spots, it's best to discard it.
Rotten tomatoes will leak some liquid. So if you see water stains underneath the tomato, it has passed its prime for consumption.

2. Then, Smell It.

If your tomato has a bad smell, its taste will also be affected. Use your nose to know when your tomato can be used for composting. Fresh tomatoes will have a pleasant, aromatic tomato smell, especially near the stem end.

3. Hold It.

Just by touching the tomato, you can learn a lot about it.
Fresh, ripe tomatoes feel smooth, soft, and relatively heavy compared to their size.
Wrinkled or mushy tomatoes are overripe.

These are the three main checks we need to do when picking tomatoes:
First, look at it.
Then, smell it.
Third, hold it.

If you have tomatoes leaking liquid or showing mold, handle them carefully to avoid foodborne illness. Here are steps you can take:

First, Assess the Damage.

If the tomato is only leaking liquid but without mold, it might still be usable with prompt handling.
However, if mold is visible, especially if it has spread widely, it's best to discard the tomato. Mold can penetrate areas not visible to the naked eye.

Second, Salvage Usable Parts. How to Salvage?

Inspect the tomato carefully. If only a small part is affected, cut away the damaged or moldy portions. Use a clean knife to cut at least 1 inch around the affected area to ensure removal of all potentially contaminated parts. Then use the salvaged part immediately, preferably in cooked dishes such as tomato soup, stew, or sauces. Cooking will kill any potential bacteria.

How to Tell If a Tomato Is Spoiled? Online Responses

Now let's see how four online users respond to this topic: How to tell if a tomato is spoiled?

  • First online user says:
    First, observe the surface of the tomato.
    See if the tomato has one or more flat spots. This is the first sign of tomato mushiness and the beginning of decay.
    See if the tomato feels soft in parts or all over? Not good.
    See if there are places where the skin is cracked and starting to leak liquid? Very bad.
    See if the tomato has a flat spot with white or light gray small raised spots? Absolutely terrible, the tomato has leaked and started to mold.
    In essence, tomatoes leaking liquid or showing mold should be discarded.
    If there are no obvious flat spots, cracks, leaks, or mushiness, you can enjoy the tomato.
    Also, be sure to observe carefully when slicing, as some tomatoes may have internal spoilage that doesn't affect the surface.
    Like other fruits, tomatoes are carriers that ensure the survival of the species. They protect and nourish seeds, creating new generations. Once separated from their plant base, each fruit begins a process of self-destruction, as it provides natural protection and nutrition for the seeds. So remember, the decay of fruits begins without any external force. It's a natural process that can't be stopped. Although it may be delayed, once their genes decide, natural enzymes will quickly act. Eating fresh tomatoes is natural, and you don't have to worry about bad spots.
  • Second online user says:
    The best way to determine if a tomato is bad is through visual and tactile cues. If the tomato is mushy, it's too ripe. Also, check if the tomato skin is damaged. You may see liquid in the container it's in leaking from these cracks or fissures. Tomatoes are also prone to molding. If you find a sour smell after cutting it open, it should not be consumed.
  • Third online user says:
    Part of a bad tomato will become darker. Usually, it covers about 1/4 or more of the fruit's surface. It will be much softer. If you gently press your finger on that dark soft spot, it may sink in and emit a smell. This is because that part of the flesh has lost its support structure and begun to liquefy. It's time to discard it. Ripe tomatoes will stay ripe and edible for about 5-7 days.
  • Final online user says:
    I think bad tomatoes are obvious. Soft, mushy, with liquid leaking. Or visible mold on the surface. If the seeds have started to sprout, it may not be obvious. You can still safely eat it by removing the sprouts. Tomato plants are toxic. Only the fruit, berries are edible.

Conclusion

Let's summarize today's topic of how to determine if a tomato is spoiled and how to choose good tomatoes. Judging tomato quality can be done through three methods: observing appearance, smelling odor, and feeling texture. Appearance-wise, a flawless tomato is good; one with spots or leaking liquid may be spoiled. Smell-wise, fresh tomatoes have a pleasant aroma; tomatoes with a strange smell should be discarded. In terms of texture, fresh tomatoes are smooth, soft, and heavier relative to their size; wrinkled or mushy tomatoes are overripe. Handle tomatoes leaking liquid or showing mold carefully, cut off damaged parts, and use immediately in cooking. In conclusion, when choosing tomatoes, observe, smell, and feel in three steps.

Review

All comments are moderated before being published

HealthyPIG Magazine

View all
牛骨湯食譜大全|Instant Pot 壓力煲 & 傳統老火湯版本

牛骨湯食譜大全|Instant Pot 壓力煲 & 傳統老火湯版本

牛骨湯食譜係香港家庭常見嘅煲湯之一,牛骨湯香濃滋補,配合中藥材更具養生功效。本文介紹肉骨類選擇、牛骨湯建議配搭、常見中藥材分類,以及Instant Pot壓力煲與傳統老火湯版本食譜,並引用科學研究支持。
澳洲飲用水發現「食腦變形蟲」:全球風險與地區對策(含各國/各州實用指南)

澳洲飲用水發現「食腦變形蟲」:全球風險與地區對策(含各國/各州實用指南)

澳洲飲用水發現「食腦變形蟲」:全球風險與地區對策(含各國/各州實用指南) 澳洲飲用水發現「食腦變形蟲」:全球風險與地區對策(含各國/各州實用指南) 重點:事件本身不代表飲水會感染;主要風險來自水經鼻腔進入。 目錄 ...
如何判斷雞翅是否變壞?

如何判斷雞翅是否變壞?

重點摘要 雞翅會變質嗎? 如何判斷雞翅是否變壞? 過期雞翅還能食嗎? 雞翅可存放多久? 如何儲存雞翅? 雞翅可以冷凍嗎? 結論 雞翅會變質嗎? 會。皮脂較多、表面不潔或溫度過高時,細菌繁殖更快。 如何判斷雞翅是否變壞? 外觀:皮色發黃、出黑斑或血水。 觸感:表面黏滑、軟爛。 氣...
如何判斷雞蛋是否變壞?

如何判斷雞蛋是否變壞?

重點摘要 雞蛋會變質嗎? 如何判斷雞蛋是否變壞? 過期雞蛋還能食嗎? 雞蛋可存放多久? 如何儲存雞蛋? 雞蛋可以冷凍嗎? 結論 雞蛋會變質嗎? 會。殼面有微孔,溫差及濕度變化會令細菌入侵。 如何判斷雞蛋是否變壞? 水測:沉底=較新鮮;浮起=多半變壞。 打開觀察:蛋白渾濁水樣、蛋黃...
如何判斷羊肉是否變壞?

如何判斷羊肉是否變壞?

重點摘要 羊肉會變質嗎? 如何判斷羊肉是否變壞? 過期羊肉還能食嗎? 羊肉可存放多久? 如何儲存羊肉? 羊肉可以冷凍嗎? 結論 羊肉會變質嗎? 會。脂肪多而易氧化,處理或存放唔好就會變壞。 如何判斷羊肉是否變壞? 顏色:紅轉黑,或出現綠斑。 脂肪:由白轉黃兼有酸味。 氣味:由輕...
如何判斷豬肉是否變壞?

如何判斷豬肉是否變壞?

重點摘要 豬肉會變質嗎? 如何判斷豬肉是否變壞? 過期豬肉還能食嗎? 豬肉可存放多久? 如何儲存豬肉? 豬肉可以冷凍嗎? 結論 豬肉會變質嗎? 會。豬肉表面水活度高,加上處理不潔或溫度過高,容易腐敗。 如何判斷豬肉是否變壞? 顏色:粉紅轉灰、發綠或出斑。 氣味:酸臭、腥臭味濃 ...
如何判斷牛肉是否變壞?

如何判斷牛肉是否變壞?

重點摘要 牛肉會變質嗎? 如何判斷牛肉是否變壞? 過期牛肉還能食嗎? 牛肉可存放多久? 如何儲存牛肉? 牛肉可以冷凍嗎? 結論 牛肉會變質嗎? 會。牛肉含高蛋白同水分,若溫度控制或衛生不當,細菌會快速繁殖,導致變壞。 如何判斷牛肉是否變壞? 顏色:鮮紅轉深褐甚至發黑;脂肪變黃。 ...
成年後懷疑自己有注意力不足過動症(ADHD),應該接受診斷嗎?

成年後懷疑自己有注意力不足過動症(ADHD),應該接受診斷嗎?

在過去,注意力不足過動症(Attention-Deficit/Hyperactivity Disorder, ADHD)多被視為「小孩的病」,很多成年人小時候從未被評估或診斷。直到近年社會對心理健康重視度提升,許多成人才開始懷疑,自己長期以來的專注困難、健忘、衝動或時間管理不良,可能與 ADHD 有關。這種「晚發現」的情況相當普遍,也引發了問題:成年後是否值得接受 ADHD 診斷?

哪些職業對健康影響最大?科學與現實的分析

哪些職業對健康影響最大?科學與現實的分析

在現代社會中,工作佔據了人們生命中相當大的一部分。然而,不同職業對健康的風險並不相同。一些工作性質或環境,會顯著增加慢性病、心理壓力、甚至縮短壽命的風險。以下從科學研究與醫學角度,探討幾類對健康損害較大的職業,並附上相關統計數據。