Stainless steel insulated cups are typically made of two layers of stainless steel with a vacuum layer in between. The inner layer is made of food-grade stainless steel, while the outer layer can be made of a variety of materials such as stainless steel, plastic, or silicone.
The stainless steel used for insulated cups is typically 18/8 or 304 stainless steel. This type of stainless steel is highly resistant to corrosion, oxidation, and stains, making it a durable and long-lasting option. It is also a non-toxic material that does not contain harmful chemicals such as BPA or phthalates, ensuring that the beverage is safe to drink.
The vacuum layer in between the two layers of stainless steel is crucial in providing insulation properties. The vacuum layer reduces heat transfer through conduction and convection, keeping the beverage at a specific temperature for an extended period.
In summary, the materials used for stainless steel insulated cups are safe, durable, and provide excellent insulation properties, making them a practical and convenient choice for keeping beverages at a specific temperature.
