How to Make Normal Saline Solution at Homeの方法について分かりやすく解説します。初心者でも安心のガイドをご覧ください。

Here’s the secret: you only need table salt and water. But not just any salt—skip the fancy pink Himalayan stuff or the sea salt with crunchy bits. You want plain, iodized table salt, because it dissolves like a dream and is sterile enough. Non-iodized salt works too, but iodized is fine—it won’t turn your nose into a science experiment.

The second star is tap water, but let’s not be reckless. You need to boil it first to kill any microscopic party crashers. Think of it like this: you wouldn’t drink from a garden hose after it’s been sitting in the sun all summer. Your nose feels the same way about unboiled water.

The Exact Ratio You’ll Forget by Next Week

Grab a clean pot and pour in 1 cup of water (that’s 8 ounces, or 240 milliliters if you’re fancy). Bring it to a rolling boil for five whole minutes. Yes, set a timer. I once got distracted by a squirrel outside and ended up with half the water gone—my saline was basically a salt lick.

Take it off the heat, then stir in 1/2 teaspoon of salt. Don’t add more—it’s not a pinch-of-this, pinch-of-that situation. That’s the Goldilocks ratio for normal saline: not too salty, not too weak. If you use a whole teaspoon, you’ll make a brine that belongs on a pickle, not in your face.

Making Normal Saline At Home , How to make saline solution – BYOFB