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In restaurants, cafés, and bars, the guest must always be served the mineral water they have ordered in a closed bottle. Otherwise, the guest has the right to return their drink.

The bottle must be closed

If the guest’s ordered mineral water is served in a glass, the guest could feel deceived and send the water glass back. This is now pointed out by the information center of German mineral water.

The Mineral and Table Water Ordinance (MTVO) therefore stipulates that mineral water must always be served in a sealed bottle. In this way, the German mineral springs guarantee the safety, quality, and unadulterated naturalness of the mineral water from the source to the guest. At this point, the natural product differs from other water offers such as tap or table water.

Right of the guest

Since mineral water is a natural product, it is protected by law. The water must be filled into the bottles intended for it directly at the source and reach the consumer in this form. The waiter may only open and pour the ordered mineral water at the guest’s table.

According to Okotest, IKEA donuts are contaminated with mineral oil, and the sale of these products has already been stopped there. In total, donuts from 15 different suppliers were tested – with similar results. However, not all act as consistently as the furniture chain and pulled the donuts out of circulation.

IKEA donuts contaminated with mineral oil

Okotest examined donuts from 15 suppliers, including the donuts from the furniture chain IKEA. The goods concerned were rated “insufficient” by the organization because they had “high levels of potentially health-endangering mineral oils and fat pollutants”, according to Ökotest.

Ikea reacted: The affected donuts were withdrawn from sale. According to Ökotest, it was only four weeks after the test was published.

But what about the other 14 providers? Because all tested donuts were rated “unsatisfactory”. Although Foodwatch explains that “such complex problems as contamination with mineral oil and fat pollutants” cannot be solved immediately, they call for a ban on the sale of all contaminated products.

McDonald & Co. continues to sell contaminated donuts

The organization Foodwatch demanded that all 11 donut suppliers whose products had significantly increased amounts of mineral oil stop selling the contaminated products. But only IKEA followed this request. The other vendors responded vaguely or not at all to Foodwatch’s query.

These donut vendors and products were tested:

  1. IKEA: B&B Pinky Donuts, frozen
  2. Edeka: Good & cheap mini donuts 3 types, deep-frozen
  3. McDonald: Candy Donut, Chocolate Donut
  4. Baked goods: baked goods pinkie donuts, chocolate donuts, white donuts,
  5. Dunkin’ Donuts: Sugar, Strawberry Frosted, Chocolate Frosted
  6. Re: Rewe Beste Wahl Mini Donuts Three different varieties, deep-frozen
  7. Tasty Donuts: Tasty Donuts Blacky, Classic, Raspberry Kiss, loose
  8. Le Crobag: Sugared donut
  9. Globus: The Simpsons Donuts Pink Glazed 4-Pack
  10. Real: Real Home Bakery Sugared Donuts, Pack of 4
  11. Happy Donazz: Classic Chocolate, Homer’s Donut, Rainbow
  12. Backstube Kaufland: Pinkie donut with sprinkles,
  13. Bakery Net: Pinky Donut
  14. Poppies: Poppies Trio Mini Donuts, frozen
  15. Lidl: Chocolate donut, go

Mineral oil pollution

The mineral oils usually get into the food via waste paper packaging. This could be prevented by a so-called “functional barrier”, such as a separate inner bag or a layer integrated into the carton.

Mineral oil saturated hydrocarbons (MOSH) and mineral oil aromatic hydrocarbons (MOAH) is extremely harmful to humans. MOSH accumulate in the organs and can damage them. MOAH is suspected of being carcinogenic and can damage the genetic material.

Foodwatch has launched an email campaign demanding fixed limit values ​​for mineral oil in food and the “functional barrier”. This is intended to prevent future food contamination with mineral oil. You can sign the campaign here.

Do you know that? An open bottle of mineral water suddenly tastes stale after a while. This inevitably raises the question of whether mineral water can go bad?

Mineral water from PET bottles lose their taste more quickly

It’s not that easy. The best-before date is prescribed by law and is not an official expiry date. According to the German mineral water information center, “mineral water can still be enjoyed without hesitation even after the deadline has expired.”

Water in plastic bottles has a shorter expiry date than water in glass bottles. There is a specific reason for this: water from plastic bottles loses its taste faster because oxygen can penetrate the PET bottle better than glass.

It is also rumored that hormone-like chemicals could escape into the water if the PET bottle were to heat up. A study by the University of Frankfurt am Main examined this suspicion. The biologists Jörg Oehlmann and Martin Wagner reported that twelve of the 20 types of mineral water tested contained a hormone similar to female estrogen.

Why does my mineral water taste stale?

The biologists also report that the estrogenic load in PET bottles is twice as high as in glass bottles. One reason for this could be the plasticizers contained in the plastic. According to the Frankfurter Allgemeine Zeitung, there are indications that this could gradually detach itself from the plastic and migrate into the water. It has not yet been confirmed whether this can also lead to health problems, but it is at least suspected.

Nevertheless, opened bottles should be consumed within a few days. Because microorganisms such as bacteria can get into the open bottle – and multiply there quickly. This happens quickly, especially in the summer when it is bright and very warm, according to the researchers at the Mercy Medical Center. Therefore, it is also recommended to store opened bottles in cool places.