B1 中級 36528 タグ追加 保存
動画の字幕をクリックしてすぐ単語の意味を調べられます!
単語帳読み込み中…
字幕の修正報告
It’s Monday night, and you just got home.
You’re too exhausted to actually cook a decent meal, so you reach into the freezer
and pull out a frozen dinner from the back.
Your stomach rumbles.
You open the box and pull out your lasagna and. Noooo!
Freezer burn.
Everything’s covered in a thick layer of stale-smelling ice crystals, and you know
your dinner is ruined.
It’s a common thing. Any food you leave in the freezer too long is eventually going
to end up about as appealing as a dead Tauntaun.
Why, you ask?
Because it’s drying up.
See, there are frozen water molecules in your steak, or ice cream, or bag of corn.
And over time, in the dry air of your freezer, some of those molecules tend to sublimate
-- in other words, they go directly from solid ice to water vapor.
You may have noticed this happening to ice cubes, too -- it’s why they slowly shrink
in their trays when you could’ve sworn you filled them up all the way.
The molecules will often then re-freeze somewhere else, like on the package or as part of the
gigantic frost wall that’s threatening to slowly take over your entire freezer.
But either way, your food isn’t getting its moisture back -- it ends up dehydrated
and discolored, not to mention puckered and gray and generally unappetizing.
You can help delay freezer burn by double-wrapping foods and sealing them in air-tight containers
to reduce their exposure to air, but if you leave your food in the freezer long enough, eventually
sublimation is going to ruin your dinner plans.
The good news -- if you can call it that -- is that frozen foods don’t decay, so while freezer-burned
food might look and smell terrible, it's probably still safe to eat, technically.
Thanks for asking, and thanks especially to all of our patrons on Patreon who keep these
answers coming. If you’d like to submit questions to be answered, or get some videos
a few days early, go to patreon.com/scishow. And don’t forget to go to youtube.com/scishow
and subscribe!
コツ:単語をクリックしてすぐ意味を調べられます!

読み込み中…

読み込み中…

冷凍で食べ物の栄養素を壊す? (Why Is Freezer Burn Ruining My Food?)

36528 タグ追加 保存
Angela Hsu 2016 年 7 月 5 日 に公開    Lily_Chang2 翻訳    Shoji Kawahara チェック
お勧め動画
  1. 1. クリック一つで単語を検索

    右側のスプリクトの単語をクリックするだけで即座に意味が検索できます。

  2. 2. リピート機能

    クリックするだけで同じフレーズを何回もリピート可能!

  3. 3. ショートカット

    キーボードショートカットを使うことによって勉強の効率を上げることが出来ます。

  4. 4. 字幕の表示/非表示

    日・英のボタンをクリックすることで自由に字幕のオンオフを切り替えられます。

  5. 5. 動画をブログ等でシェア

    コードを貼り付けてVoiceTubeの動画再生プレーヤーをブログ等でシェアすることが出来ます!

  6. 6. 全画面再生

    左側の矢印をクリックすることで全画面で再生できるようになります。

  1. クイズ付き動画

    リスニングクイズに挑戦!

  1. クリックしてメモを表示

  1. UrbanDictionary 俚語字典整合查詢。一般字典查詢不到你滿意的解譯,不妨使用「俚語字典」,或許會讓你有滿意的答案喔