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
牛肉與腸道微生態:人體點樣反應?

牛肉與腸道微生態:人體點樣反應?

牛肉進入身體之後會發生咩事? 食牛肉之後,身體會進入「高蛋白消化模式」: 胃部階段:胃酸(pH約2)與胃蛋白酶一齊將牛肉蛋白質分解成小分子胺基酸鏈。此時釋放「胃泌素(gastrin)」促進更多酸及酶分泌。 小腸階段:十二指腸接收食糜後,胰臟釋出胰蛋白酶、脂肪酶,肝臟釋出膽汁乳化脂肪。 ...
從嗜睡症、慢脈搏到米諾地爾 (Minoxidil) 的全身動力學

從嗜睡症、慢脈搏到米諾地爾 (Minoxidil) 的全身動力學

當身體進入「慢模式」——嗜睡症與自律神經的連結 嗜睡症(Narcolepsy)是一種大腦覺醒系統的紊亂,患者在日間容易突然進入睡眠狀態。但其實,嗜睡症不止影響「睡眠」,還會影響全身的 自律神經系統 (Autonomic Nervous System)。 自律神經負責調節: 心跳快慢(交感與...
降血壓,唔一定靠藥!了解身體機制,從生活開始調節

降血壓,唔一定靠藥!了解身體機制,從生活開始調節

高血壓唔係「年紀大」嘅專利,愈來愈多年輕人都有血壓偏高。其實,血壓高並非只係「壓力大」咁簡單,而係整個身體系統出問題:心臟、血管、腎臟、神經、荷爾蒙都有份參與。

原糖 vs 紅糖 vs 白糖:哪一種更健康?

原糖 vs 紅糖 vs 白糖:哪一種更健康?

日常生活中,我們常見的糖有「原糖」、「紅糖」與「白糖」。三者外觀、味道甚至用途都略有不同,但在營養與健康層面上又有幾大差異。本文將帶你深入了解它們的製作方式、特性與對身體的影響。

籃球係有氧運動嗎?— 一文睇清有氧同無氧運動嘅分別、好處同平衡之道

籃球係有氧運動嗎?— 一文睇清有氧同無氧運動嘅分別、好處同平衡之道

籃球係全球最受歡迎嘅運動之一,無論係街場隨意投籃、定係正式比賽,都可以幫助身體活動。但你有冇諗過,籃球到底屬於「有氧運動」定「無氧運動」?兩者又有咩分別?點樣玩先至最有益身體?

本文會同你用簡單角度拆解「有氧」同「無氧」嘅概念,並講解籃球點樣同時結合兩者,最後再分享點樣令你嘅籃球運動更健康、更有效。

男士禿頭對策:了解雄性禿與5%米諾地爾(Minoxidil)生髮原理

男士禿頭對策:了解雄性禿與5%米諾地爾(Minoxidil)生髮原理

雄性禿是什麼?為何只在頭頂出現? 好多男士年過25歲開始發現頂部頭髮越來越稀疏,但前額線卻似乎仍然正常,這情況其實非常典型。這種情況稱為 雄性禿 (Androgenetic Alopecia),是男性最常見的脫髮原因之一。 主要成因來自兩方面: 遺傳基因:如果父母其中一方有禿頭問題,後代的...
發現死老鼠點處理?

發現死老鼠點處理?

喺屋企、後花園、廚房甚至車房發現一隻「死老鼠」唔係罕見事,但好多屋主第一時間會「嚇親」或者「即刻掃走」。其實咁樣反而危險!
死鼠可能帶有漢他病毒、鈎端螺旋體病、沙門氏菌等病原體,一旦處理唔當,吸入塵埃或者接觸體液,都可能感染疾病。以下教你一套澳洲、香港、台灣都適用嘅安全清理步驟。

老鼠與大鼠的衛生影響:對人體與家居健康的真正威脅

老鼠與大鼠的衛生影響:對人體與家居健康的真正威脅

「老鼠」同「大鼠」雖然都屬於齧齒類,但牠哋對人類健康嘅影響有明顯分別。本文會詳細講解牠哋嘅衛生差異、疾病傳播途徑、同預防方法

無人機醫療配送:低空經濟下的香港新契機

無人機醫療配送:低空經濟下的香港新契機

  無人機醫療配送:低空經濟下的香港新契機 —— 從健康、醫療金融到商業模式的全球比較與啟示 在香港「低空經濟」監管沙盒下,無人機由數碼港跨海至長洲醫院,約 12 公里航線僅需 18–20 分鐘,相比傳統 45–65 分鐘大幅提速。本文聚焦醫療價值、醫療金融回報與商...