Introduction
Compared to ordinary ceramic or glass cups, stainless steel vacuum tumblers can maintain the temperature of hot or cold beverages for a longer time. However, not all liquids are suitable for these containers. Certain drinks and substances may damage the tumbler or even affect your health. To ensure safe usage, Ansheng has compiled a guide on which liquids should not be stored in a vacuum tumbler.
What Liquids Should Not Be Put in a Tumbler?
1. Carbonated Drinks
Most tumblers are not suitable for carbonated beverages, especially those with straws. These drinks release gas, which builds up pressure inside the sealed vacuum tumbler. This may lead to:
• Lid unexpectedly pops open, causing spills.
• Sealing ring deformation, reducing insulation efficiency.
• Excessive pressure deforms the tumbler's structure.
Additionally, carbonated drinks are corrosive and may leach harmful substances when in prolonged contact with stainless steel. If you enjoy beverages like cola or Fanta, consider trying Ansheng's specially designed stainless steel carbonated bottle.
2. Acidic Drinks
Fruit juices, lemon water, and vinegar-based drinks are highly acidic. The high acidity can react with the chromium and nickel in stainless steel. Over time, this may cause pitting and rust on the inner walls of the tumbler, and detached metal particles may mix into the drink.
3. Hot Milk
Though pairing milk with sandwiches for breakfast may be tempting, it's best not to store hot milk in a stainless steel tumbler. Milk contains proteins and fats, which can spoil easily when kept warm for extended periods. The vacuum insulation layer traps heat, accelerating bacterial growth. As a result, the milk may turn sour, develop an unpleasant odor, and leave residue on the tumbler's inner walls.
4. Herbal Decoctions
Traditional Chinese medicine is primarily made from herbs and natural plants. Some herbs contain highly acidic or alkaline compounds that can react with stainless steel. This may alter the chemical composition of the medicine, reducing its effectiveness. Compared to stainless steel tumblers, glass or ceramic containers are more suitable for storing herbal drinks.
5. Salty Drinks
This mainly includes sports drinks and sodium-rich beverages (such as soups, broths, or electrolyte drinks). When stored for long periods, the salt content can damage the stainless steel's protective oxide layer, causing pitting (small holes). If you must carry salty drinks, consume them as soon as possible and clean your tumbler promptly.
6. Harsh Chemicals
Chemical liquids such as bleach, cleaning solvents, and strong acids should never be put in a stainless steel vacuum tumbler. They can quickly corrode and discolor the stainless steel and silicone seals, leaving behind toxic residues. If your tumbler gets dirty, mild detergent and warm water are sufficient to restore its cleanliness.
Conclusion
When using stainless steel tumblers, avoid filling them with the liquids mentioned above. By following these tips, you can maintain your tumbler in good condition for a longer time.
Start a Fresh Day with Ansheng's Tumblers
As a leading manufacturer of stainless steel drinkware, Ansheng is committed to providing safe, durable products and customized solutions, including tumblers, water bottles, and coffee mugs. If you're interested or seeking professional support, please visit our official website or contact us.
