FQA

How often do I need to replace the filters?

It depends on the model and how many people are using it, but as a general guide: our portable ACE BIO PLUS filter set lasts about 1 year, while all other Mineral Pot models last about 2 years. As long as you spread your usage of the top filter and cotton evenly over that period, you're good to go — no guesswork needed.

Does the Mineral Pot need electricity?

No! Unless you have a Hot & Cold model, the Mineral Pot works completely without power. It uses natural gravity filtration — water slowly passes through layers of natural filter media, just like rain filtering through the earth. The result is clean, sweet-tasting water with balanced minerals that's easy for your body to absorb. No plug, no electricity bill, no gas bill.

Does the Mineral Pot produce any wastewater?

None at all. Because the Mineral Pot filters water naturally by gravity, every drop of water you pour in becomes drinkable mineral water. Unlike many filter systems that flush away a portion of the water as waste, the Mineral Pot is a genuinely eco-friendly way to enjoy clean water.

Is the water quality really safe?

Absolutely — and you don't have to take our word for it. Waters Mineral Pots have been sold in more than 30 countries for over 40 years. Our products have passed testing by the US Environmental Protection Agency (EPA) and Japan's Ministry of Health, won multiple quality awards in Europe, and were even chosen as the designated drinking water for the Seoul Olympic Games and other major sporting events across Asia. When athletes trust it, you can too.

Can I boil the water? Can I use it for tea, coffee or cooking?

Yes, you can! Just a heads-up: boiling may slightly reduce the mineral content and lower the alkalinity a little, so if you want the full mineral benefits, enjoy it straight from the pot. But it's perfectly safe to boil for tea, coffee, soup or cooking.

Can I use the filtered water to wash rice, fruits and vegetables?

Yes, and we actually recommend it! The filter removes chlorine and other impurities from tap water. Chlorine can break down the vitamin C in rice, fruits and vegetables, so washing your food with filtered water helps preserve those nutrients — one more little way to take care of your family's health.

How long can I keep the water after pouring it out?

Once the water leaves the pot, it no longer benefits from the filter's silver ions, which naturally keep bacteria from growing. So we recommend drinking poured-out water within 2 days, and keeping it refrigerated in the meantime. For the freshest taste, pour only what you need.

Why is there white scale at the bottom of my kettle after boiling tap water? Is it harmful?

That white residue is simply calcium carbonate and magnesium carbonate — natural minerals found in tap water, especially in harder water areas. It can make your kettle take a little longer to boil, but it's not harmful to your health at all.

What are the filters made of?

All natural materials, carefully layered: natural coral sand from the ocean floor near Okinawa, Japan; seabed mineral sand and silica sand; our patented **Somelite** formula (which kills bacteria and prevents bacterial growth); bio-ceramic media; activated carbon; and silver-impregnated activated carbon. Nothing synthetic, nothing to worry about.

Why is the filtered water slightly alkaline, and where do the minerals come from?

The natural calcium ions in the filter gently dissolve into the water, turning it mildly alkaline. At the same time, our patented Somelite releases balanced minerals into the water through a natural ion-exchange process. So every glass is naturally alkaline with a healthy mineral balance — just like spring water.

Why does the water taste so smooth and sweet?

It's a combination of a few natural processes: ion exchange and mineralisation adjust the pH to mildly alkaline, natural calcium ions dissolve into the water, and our activation and magnetisation steps increase the dissolved oxygen content. The result? Water with the right minerals, more oxygen and a gentle alkalinity — that's why it tastes so fresh and sweet.

Can I drink the water straight from the pot, or do I need to boil it first?

You can drink it straight away — no boiling needed. The Mineral Pot puts your water through six processes: purification, sterilisation, mineralisation, magnetisation, bio-ceramic treatment and activation. Heavy metals and impurities are filtered out, silver ions eliminate bacteria, oxygen content is increased, and the pH is gently adjusted to alkaline. The water is not only pure but also smooth and sweet — ready to enjoy as it is.

How often should I clean the Mineral Pot?

It depends on your environment, but as a rule of thumb: give the pot a good clean inside and out every **3–4 months**, or whenever you change the top filter. Plain water is usually enough. If there's stubborn oil or dirt on the outside, use a small amount of mild, neutral detergent — just be sure to rinse it off thoroughly.

Is it okay if the pot runs completely empty?

Try to keep the pot at least **half full**, with the water level covering the bottom of the main filter. Here's why: through capillary action, the filter continues to mineralise and activate the water and keep bacteria at bay — but only while it's in contact with water. An empty pot loses that protection, so top it up regularly to keep your water fresh.

Silver ions are used for sterilisation — is that safe for my body? Is the silver content within safe limits?

Yes, completely safe. The filter releases only a tiny trace of silver ions — around **0.02–0.05 ppm** — just enough to kill bacteria and stop them from multiplying. Silver has been trusted for centuries: silver bowls, cups and spoons have long been used in daily life, and even in modern medicine, silver solutions are used to protect newborns' eyes and silver-based creams help prevent infection in burns. For comparison, the allowable limit in Taiwan and Japan is 0.05 ppm, and in the US and under WTO standards it's 0.1 ppm — our Mineral Pot stays well below all of these.

I noticed small black particles from the filter. What are they, and are they harmful?

Those tiny black specks are simply small particles of activated carbon, which is made from natural coconut shells. Activated carbon is quite brittle, so occasionally a few particles may slip through and settle at the bottom of the pot. All the activated carbon in Waters filters is **food grade**, so even if you accidentally swallow a particle, it won't harm you — it just doesn't look great. If it bothers you, simply pour out the water, give the inside of the pot a quick rinse, and carry on as normal.