The products are primarily made of food-grade lead-free soda-lime glass. The material is transparent and pure, free of lead, cadmium, and other harmful substances, meeting food contact safety standards in various countries. The dense glass structure does not easily absorb tea stains, milk stains, or odors, and will not yellow or fog over long-term use. Standard models are dishwasher safe, making maintenance simple and worry-free. For those who require both hot and cold water, we offer square glass cups made of high borosilicate glass, which has stronger thermal shock resistance. It can hold boiling water and hot coffee, and is less prone to cracking when hot water is poured into it after refrigeration, making it more versatile.
Production involves both machine pressing and hand blowing processes. Machine-pressed square glass cups are suitable for large-volume orders. They feature clean, sharp edges, uniform wall thickness, minimal dimensional errors, stable production cycles, and a significant cost-performance advantage. Available colors include transparent, smoky gray, amber, and pastel gradients. Textures can be designed on the glass walls, such as glossy, vertical stripes, grid patterns, and hammered finishes. The rims can be gilded or silvered for added sophistication. Hand-blown square glass cups target the high-end market, with natural, handcrafted lines and elegant shapes, making them ideal for boutique home decor stores and high-end gift sets.
A variety of sizes cater to all home needs. Miniature square cups (180–250ml) are suitable for yogurt, pudding, spirits, and small breakfast drinks.
Regular straight-sided square cups (280–400ml) are suitable for water, juice, milk, and tea, serving as the family's main drinking cup. Large-capacity square cups (450–600ml) are perfect for iced drinks and large-volume lemonades. The square cup body allows for neater stacking, saving space when stored in cabinets or cup racks, solving the problem of cluttered round cups. It's suitable for everyday use in the living room, bedroom, breakfast, or for making homemade coffee or sparkling water. The transparent body beautifully showcases the color of your beverage, as seen in the excellent photos.
Product details have been optimized for user comfort. The rim is finely polished with smooth, rounded edges for a comfortable drinking experience; the thickened bottom ensures stability and prevents slipping on tabletops; and the right angles are rounded to reduce the risk of breakage. The finished product undergoes a long annealing process to effectively eliminate internal stress in the glass, reducing the probability of spontaneous breakage. We offer various shockproof packaging options, including individual bubble wrap, color boxes, and full-case outer cartons, significantly reducing breakage rates during long-distance sea freight and express delivery.
The factory supports comprehensive customization services. The height, side length, and capacity of the cups can be adjusted, and the shape can be modified to include right angles or slightly rounded corners. Surface treatments include sandblasting, frosting, color spraying, and embossed patterns. Silkscreen printing and laser engraving of customer brand logos are available. Small-batch sampling and testing are supported, with stable long-term bulk delivery. We can assist customers in obtaining necessary testing reports.
Household square glass cups have a broad appeal; their simple and versatile appearance is not limited by current trends, resulting in a long market lifespan. They can be sold individually or in sets of 4 or 6, paired with bamboo/wood coasters and glass water bottles to form complete water set gift boxes, offering ample market profit potential. Please request product photos and a detailed specification list to further discuss customization options, factory quotations, and production lead times.
