豆腐是居家常見食材,更是重要的植物性蛋白質來源,不過有很多人在煮豆腐的時候,常常煮不入味,就有一位「食品科學家」在TikTok上分享,只要在烹調前先用鹽水汆燙5分鐘,就可以讓豆腐變得入味,還能使豆腐更不容易碎掉!

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料理前鹽水汆燙 入味又不易碎

TikTok上擁有超過9萬名粉絲的「食品科學家」Wendy表示,這是她從一位中國媽媽那邊學到的小技巧,只要在料理豆腐前,用鹽水先汆燙,之後的豆腐就會變得有味道!Wendy指出,這從科學的角度也解釋得通。

Wendy分析,鹽水的滲透作用,可以讓豆腐多餘的水分被逼出來,少量的鹽分會自然滲入,讓原本沒有味道的豆腐有了鹹味,加熱也能讓豆腐的蛋白質結構稍微鬆開,使豆腐能在短時間內吸收味道,也可讓豆腐的口感更好。

煮過鹽水的豆腐也會變得更紮實,不容易在料理過程碎裂;蛋白質結構被打開的豆腐,也能在料裡過程中有效吸收醬汁味道。另外,鹽分也可以讓豆腐內部的水分被帶到表面,更容易擦乾,讓後續烹調豆腐更酥脆。

▲(圖/翻攝自photoAC)
▲煮過鹽水的豆腐也會變得更紮實,不容易在料理過程碎裂,還會更入味。(示意圖/翻攝自photoAC)
汆燙豆腐步驟

1、將豆腐切塊或切片。

2、水煮滾後加入足量的鹽,也可以用高湯代替。

3、放入豆腐煮5分鐘。

4、把豆腐撈出來瀝乾,用喜歡的醃料醃1到2分鐘。

5、接下來用這些豆腐快炒、滷、氣炸都很適合。

@wendythefoodscientist Food scientist explains: why you should always boil your tofu. I see many tofu recipes on this platform, but one crucial step is always missing! It’s boiling! Yes really :) Everyone’s pressing, freezing, marinating overnight — but who decides they are craving tofu a day in advance? My Chinese mom taught me to boil tofu in salted water for the best results. To be honest, I was skeptical first but when I thought about the science behind, it all made sense. Let me explain what is happening: 1. Osmosis of water Water goes out Boiling draws out excess moisture, especially from the surface. If you use salted water, a bit of osmosis kicks in: water moves from the tofu (low salt) to the boiling water (high salt). Salt goes in by diffusion A small amount of salt moves into the tofu, gently seasoning it from within — without making it too salty. 2. The protein network opens up Heat slightly loosens the soy protein structure, kind of like relaxing the tofu’s "pores." This preps the tofu to soak up marinades and sauces better afterward. I’m talking about marinating for seconds instead of hours. Texture improves The tofu becomes firmer, cleaner, and less likely to fall apart — ideal for stir-frying or braising. And how to use it? Here are some of my favourite tofu dishes: - salt and pepper tofu - mapo tofu - stuffed tofu with fermented black bean sauce - sticky glazed air-fried tofu - lemongrass tofu on a bánh mì - tofu satay Should I share more of my tofu secrets? #tofu #tofurecipe ♬ The Look - Instrumental - Metronomy
板豆腐比嫩豆腐營養 蛋白質豐富

根據彰化基督教醫院表示,豆腐是一種富含蛋白質的食物,也是素食者重要的蛋白質來源,不同的豆腐營養價值也不太一樣,舉例來說,嫩豆腐和板豆腐一樣都是豆漿做為原料,不過板豆腐在製作過程中有把水分壓出,所以相同重量之下,板豆腐的營養素比嫩豆腐多。另外,有研究指出,有慢性腎臟病的患者且需要執行低蛋白飲食時,用大豆蛋白(豆腐等豆製品)來取代部分動物性蛋白,能夠延緩腎功能的下降和血壓上升,從而達到保護腎臟和心臟的功能。

資料來源:TikTok彰化基督教醫院