When purchasing 420ml bamboo shaped glass cups, we are primarily attracted by their high borosilicate material. Many users inevitably wonder before purchasing: how can we distinguish genuine high borosilicate glass from counterfeit products? We can use the following methods to determine this:
Heat Resistance:The main advantage of high borosilicate glass is its ability to withstand extreme temperature changes without cracking. Even a cup taken directly from the refrigerator can be poured with boiling water without shattering.
Appearance:Examine the glass for uniformity, transparency, and the presence of bubbles and impurities. Many bubbles indicate inferior glass.
Sound:Gently tap the rim of the cup with your finger. A clear, pleasant sound indicates genuine material, while a dull sound indicates counterfeit material.
We recommend purchasing from a professional 420ml bamboo shaped glass cup manufacturer. We have a large stock of glass cups and welcome customers to visit our factory for inspection and to view other product designs.
How is a 420ml bamboo-shaped glass cup made? Many users love the bamboo shape and are curious about how such a glass cup is produced. Let's take a closer look. It mainly uses a pressing process:
Material Selection: High-borosilicate glass is selected and tested to ensure it is free of lead, cadmium, and other heavy metal impurities, meeting food safety standards. Glass particles are melted for 4-6 hours to form a uniform, transparent molten glass, which is then poured into a custom mold to form the initial cup body.
Bamboo Texture Production: A bamboo texture pattern can be designed first and then imprinted on the outer wall of the cup body. It is then baked at 600-700℃ for 30-40 minutes. Minutes are allotted to ensure the bamboo texture retains its color and is resistant to abrasion.
Quality Inspection: Each cup is individually inspected to ensure it is free of bubbles, pinholes, scratches, and misalignment. The rim is rounded and burr-free, and the dimensions are precise. For a 420ml capacity, the rim diameter is generally 7cm and the height is 15cm; specifications must meet these requirements.
Cleaning: Qualified 420ml bamboo shaped glass cups are sent to a fully automatic cleaning line, washed with neutral detergent, and then high-pressure sprayed and dried with hot air to ensure the interior is free of stains.
Packaging: Each cup is wrapped in a pearl cotton bag and placed in a corrugated cardboard box to prevent collisions during transportation. Inventory products are categorized by size and model for easy retrieval during transport.
Every detail of this 420ml bamboo shaped glass cup is meticulously designed, showcasing our pursuit of perfection in every aspect, from materials and functionality to aesthetic value. For enhanced user safety, we've incorporated a double-layered insulation structure. The hollow structure uses an air layer to block heat, ensuring the outer wall temperature remains close to room temperature even when boiling water is poured in, effectively preventing scalding. The cup's thickness is precisely controlled at 3mm, ensuring both transparency and enhanced impact resistance, making it less prone to breakage during daily use and suitable for high-frequency applications. The bamboo-like texture is on the outside, so cleaning is effortless. The thickened, non-slip base prevents the cup from tipping over easily, even on smooth surfaces. Its heat resistance makes it ideal for hot beverages; on a cold winter's day, a cup of hot milk to serve friends and family is simply perfect, and the 420ml bamboo shaped glass cup is just the right amount, making it a favorite among users.
