夏季清洗蔬菜有妙招 如何减少蔬菜农药残留

海纳百川,有容乃大。壁立千仞,无欲则刚。
打印 被阅读次数

 

蔬菜的污染主要来自农药。

白菜、空心菜等叶类蔬菜食用的是菜叶,在叶面上残留农药就会直接影响人体健康。选购此类蔬菜最好先闻一下是否有农药气味,若有,肯定是刚喷过农药不久就上市的,不宜购买。生菜、苋菜、韭菜、辣椒、芹菜、番茄等蔬菜自身抗虫能力较强,施用农药较少。还有食用部分生长在土壤中的芋头、土豆、萝卜、大头菜等也是很少受到污染的菜类。

由于农药在喷洒过程中,主要附着在蔬菜表面上,所以,有效地洗涤和适当加工,可以降低农药的残留量。

用清水浸泡和搓洗,可以使农药残留量下降,而且泡的时间越长,农药残留就越少。试验证明,用自来水将蔬菜浸泡10—60分钟后再稍加搓洗,就可以除去15%—60%的农药残留。用专用的蔬果洗涤剂浸泡更为有效。

高温加热也可以使农药分解。实验证明,一些耐热的蔬菜,如菜花、豆角等,洗干净后再用开水烫几分钟,可以使农药残留下降30%左右,再经高温烹炒,就可以清除蔬菜上90%的农药。此外,淘米水洗菜和适当用阳光照射,对于减少蔬菜上的农药也能起到一定的作用。

蔬菜去皮当然也可以减少农药残留,但也会带来果皮中维生素和矿物质的损失。因此,去除农药的最好办法还是将新鲜蔬菜进行洗涤剂浸泡,然后用清水冲洗干净。
登录后才可评论.
Logo

Looks like your ad blocker is on.

×

We rely on ads to keep creating quality content for you to enjoy for free.

Please support our site by disabling your ad blocker.

Continue without supporting us

Choose your Ad Blocker

  • Adblock Plus
  • Adblock
  • Adguard
  • Ad Remover
  • Brave
  • Ghostery
  • uBlock Origin
  • uBlock
  • UltraBlock
  • Other
  1. In the extension bar, click the AdBlock Plus icon
  2. Click the large blue toggle for this website
  3. Click refresh
  1. In the extension bar, click the AdBlock icon
  2. Under "Pause on this site" click "Always"
  1. In the extension bar, click on the Adguard icon
  2. Click on the large green toggle for this website
  1. In the extension bar, click on the Ad Remover icon
  2. Click "Disable on This Website"
  1. In the extension bar, click on the orange lion icon
  2. Click the toggle on the top right, shifting from "Up" to "Down"
  1. In the extension bar, click on the Ghostery icon
  2. Click the "Anti-Tracking" shield so it says "Off"
  3. Click the "Ad-Blocking" stop sign so it says "Off"
  4. Refresh the page
  1. In the extension bar, click on the uBlock Origin icon
  2. Click on the big, blue power button
  3. Refresh the page
  1. In the extension bar, click on the uBlock icon
  2. Click on the big, blue power button
  3. Refresh the page
  1. In the extension bar, click on the UltraBlock icon
  2. Check the "Disable UltraBlock" checkbox
  1. Please disable your Ad Blocker
  2. Disable any DNS blocking tools such as AdGuardDNS or NextDNS

If the prompt is still appearing, please disable any tools or services you are using that block internet ads (e.g. DNS Servers).

Logo