Water may seem simple, but how well do you really know it? Many common misconceptions about drinking water are deeply rooted in people's minds. You might think you know the answer, but the truth could be completely different. Let’s explore these myths and see what you’ve been missing.

**1. Boiled Water Also Has a Shelf Life**
Boiled water doesn’t last forever. Once it’s exposed to air, its shelf life is only about 16 hours. After that, harmful bacteria like E. coli can multiply rapidly. Drinking expired boiled water is similar to eating food with additives every day—over time, it can harm your body’s internal environment and weaken your health.
**2. Focusing Too Much on Minerals in Water**
While some minerals in water are beneficial, too much of them can be dangerous. For example, iodide in drinking water is good in small amounts (0.02–0.05 mg/l), but higher levels can lead to iodine poisoning. It’s important to understand that not all minerals are good in high quantities.

**3. Is Pure Water Not Nutritious?**
Water plays a vital role in the human body. It helps transport nutrients, regulate body temperature, lubricate joints, and act as a shock absorber for the brain. While water itself doesn’t provide nutrients, it’s essential for your body to function properly. You get most of your nutrients from food, so a few glasses of water won’t cause nutritional deficiencies.
**4. Drinking Water Is Just for Thirst**
Water is more than just a thirst quencher. Every cell in your body needs water to function. Staying properly hydrated supports metabolism, boosts immunity, and keeps your body running smoothly.
**5. Bottled Water Is Always Safe**
Contrary to popular belief, bottled water isn’t always safe. Once opened, it has a shelf life of only 24 hours. If left at room temperature, bacteria can grow quickly, making it unsafe to drink.

**6. Biyunquan Helps Clear Up Water Myths**
Biyunquan JST-R302E is a straight drinking water purifier that offers convenience and safety. It doesn’t require installation and comes with a TDS monitoring system to ensure clean, quality water. Its intuitive touch panel lets you track usage, while the three-second heating and seven temperature settings make it ideal for brewing tea, coffee, or other drinks.
With a four-stage filtration system, including PP, activated carbon, and RO reverse osmosis filters, Biyunquan removes harmful substances like bacteria, viruses, and heavy metals. This ensures better-tasting, cleaner water for your home.


**Buy Direct: Search "Biyunquan Flagship Store" on Tmall**
Stay informed, stay healthy, and choose the right water for your daily needs.
Investment Casting II
Investment Casting, also known as lost wax casting, includes wax pressing, wax repairing, tree formation, paste, wax melting, casting metal liquid and post-treatment processes. Lost wax casting is the process of making a wax mold of the part to be cast, and then coating the wax mold with mud. After the clay mold is dried, melt the wax mold inside in hot water. Melt the wax mold out of the clay mold and then roast into pottery mold. Once roasted. Generally, a casting port is left when the mold is made, and then molten metal is poured into the pouring port. After cooling, the required parts are made.
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