lead-free crystal glass

In modern family life, glass has become the first choice for many consumers due to its transparency, beauty and easy cleaning. Among the many glass materials, crystal glasses is loved by more and more people for its crystal clear appearance and high-grade texture. But at the same time, many people are also concerned: Is it safe to drink water from crystal glass? As a brand focusing on the manufacture of high-quality glassware, XINGHUO Glass will provide you with a comprehensive analysis of this issue from aspects such as material properties, production process, and health standards. 1. What is crystal glass? "Crystal glass" is not glass made of natural crystal, but a glass material containing lead oxide (PbO) or other metal oxides (such as barium oxide, potassium oxide). It is named because of its high refractive index and good gloss, presenting a visual effect similar to natural crystal. According to the different lead content, crystal glass can be divided into: Leaded crystal glass: The lead content is usually above 24%, with a thick texture and a steady feel, making it suitable for making high-end wine utensils, decorations, etc. Lead-free crystal glass: does not contain lead elements, and is replaced by other metal oxides, which also has good optical properties and environmental safety. 2. Is it safe to drink water from a crystal glass? Safety of lead crystal glass Although leaded crystal glass contains lead, its structure is stable and it will not easily release lead at room temperature. However, if it is used to hold acidic beverages (such as juice, vinegar, carbonated beverages, etc.) for a long time, it may cause trace amounts of lead to precipitate, which poses certain health risks. Therefore, XINGHUO Glass recommends: Leaded crystal glass is more suitable for drinking water, boiled water or non-acidic beverages. It is not recommended to store acidic liquids such as juice, coffee, red wine, etc. for a long time. In addition, there are strict international standards for food contact glass products, such as the EU's EN 1388-1/2 and the US FDA's relevant regulations. Crystal glass cups produced by regular manufacturers will pass relevant tests to ensure that they meet food safety requirements. Advantages of lead-free crystal glass As consumers become more aware of health and environmental protection, more and more families are choosing lead-free crystal glass. This type of glass not only retains the transparency and beauty of crystal glass, but also avoids the potential risks brought by heavy metals, making it a safer and healthier option. The lead-free crystal glass cups produced by XINGHUO Glass adopt advanced production technology and pass the national food-grade glass standard test. They are fully suitable for daily drinking, tea brewing and other scenarios.     3. How to judge whether the crystal glass is safe? Check the certification mark:When purchasing, you should choose products that have passed food contact material safety certification, such as: National GB 4806 Standard (China Food Contact Material Standard); FDA Certification (US Food and Drug Administration); LFGB Certification (German Food Grade Testing Standard) Observe product description:Crystal glass cups from regular brands will clearly indicate on the packaging or instructions whether they are "lead-free" or "low-lead", as well as information such as the applicable temperature range and usage recommendations. Sensory Discrimination:Listen to the sound: high-quality crystal glass will make a clear and pleasant sound when knocked. Look at the texture: crystal glass is more transparent and glossy than ordinary glass. Touch the edge: the cup mouth is smooth, burr-free, and comfortable to the touch. 4.The promise of XINGHUO glass: make every sip of water safe As a professional household glassware manufacturer, XINGHUO Glass always adheres to the product concept of "healthy, safe and beautiful". Our crystal glass series cups are made of high-standard raw materials and combined with precision processing technology to ensure that each product meets national and international food safety standards. Whether it is for daily drinking at home, for gatherings with friends, or as a gift, XINGHUO glass can provide you with safe, reliable and high-quality choices. Crystal glass is the ideal drinking tool in many people's mind because of its unique beauty and texture. As long as you choose lead-free or low-lead material, pass food grade certification, and use it correctly, it can become your healthy partner in daily life. If you are looking for a glass water cup that is both beautiful and safe, you might consider the crystal glass series products of XINGHUO Glass. We are committed to bringing a higher quality of life experience to every family. Visit the xinghuo glass website www.xinghuoglass.com to learn more about glassware.  

At Xinghuo Glass, we believe that every glass you hold—whether it’s a crystal-clear wine goblet, a durable borosilicate tumbler, or an elegant serving bowl—tells a story of craftsmanship, precision, and centuries-old tradition fused with modern innovation. But have you ever wondered how raw materials transform into the beautiful, functional glassware gracing your dining table? In this blog post, we’ll take you behind the scenes of glassware manufacturing, revealing the meticulous processes that go into creating our premium crystal glass and high borosilicate glass collections—from raw sand to your home. Why Glass? Beauty Meets Functionality Glass has been cherished for millennia—not just for its luminous clarity and elegance, but also for its non-toxic, non-porous, and eco-friendly properties. At Xinghuo Glass, we specialize in two main types of high-end glassware: Crystal Glass Series: Known for its brilliance, weight, and resonant ring—perfect for luxury drinkware and decorative tableware. High Borosilicate Glass Series: Engineered for thermal shock resistance, durability, and everyday use—ideal for coffee carafes, water bottles, and oven-to-table bakeware. Both lines are designed with European and North American lifestyles in mind—combining aesthetics, safety, and sustainability. Step 1: Precision Raw Material Selection It all starts with purity. Our glass begins with carefully selected raw materials: Silica sand (SiO₂) – the primary component Soda ash (Na₂CO₃) – lowers melting temperature Limestone (CaCO₃) – adds stability For borosilicate glass, we add boron trioxide (B₂O₃), which gives the glass exceptional resistance to thermal stress (up to 150°C temperature differentials!) For lead-free crystal glass, we use potassium oxide and barium oxide to achieve sparkle and clarity without compromising safety All materials meet FDA, LFGB, and EU food-contact safety standards—ensuring your glassware is 100% safe for daily use. Step 2: High-Temperature Melting – Where Magic Begins The raw batch is melted in state-of-the-art electric furnaces at temperatures between 1,400°C and 1,600°C. This energy-efficient process ensures: Ultra-low impurities Consistent color and clarity Reduced carbon footprint (aligned with our sustainability goals) Unlike traditional gas-fired furnaces, our electric melting system offers precise temperature control—critical for producing both delicate crystal stems and robust borosilicate pitchers. Step 3: Shaping the Vision – Handcrafted & Automated Techniques Depending on the product type, we use different forming methods: ✦ Blow-and-Press Molding (for drinkware & stemware) Used for wine glasses, tumblers, and carafes. Molten glass is blown into precision molds using compressed air, then pressed to perfect the base and rim. This hybrid method ensures thin walls, smooth rims, and balanced weight—hallmarks of premium tableware. ✦ Press Molding (for plates, bowls, and lids) Ideal for flatware and storage containers. Hot glass is pressed into molds under high pressure, creating uniform thickness and sharp detailing. ✦ Free-Blown or Machine-Assisted Hand Blowing (for artisanal crystal pieces) For our luxury crystal collection, skilled artisans guide the shaping process, adding a human touch that machines can’t replicate—each piece subtly unique. Step 4: Annealing – The Secret to Durability Freshly formed glass contains internal stresses from rapid cooling. If unaddressed, these can cause spontaneous breakage. That’s why every Xinghuo product undergoes a controlled annealing process: Heated to ~550°C (the “strain point”) Held for several hours Slowly cooled to room temperature This step dramatically improves impact resistance and longevity—so your glassware survives dishwashers, ice cubes, and daily use. Step 5: Rigorous Quality Control Before any item leaves our facility, it passes through multiple inspection stages: ✅ Visual inspection – for bubbles, streaks, or mold marks✅ Dimensional accuracy – verified with laser calipers✅ Thermal shock testing – borosilicate items are cycled from boiling water to ice water✅ Rim smoothness & balance test – especially critical for stemware✅ Food safety certification checks Less than 1% of production fails to meet our standards—and those pieces are fully recycled back into the melt. Sustainability: Clear Commitment to a Greener Future As a responsible manufacturer, Xinghuo Glass prioritizes eco-conscious practices: Up to 40% recycled glass (cullet) in every batch Zero wastewater discharge from production Energy-efficient electric melting reduces CO₂ emissions by 30% vs. conventional methods Plastic-free packaging using recycled paper and molded pulp We’re proud to support the global shift toward reusable, long-lasting alternatives to single-use plastics. Bringing Elegance to Your Table—Responsibly Crafted From the quartz-rich sands of nature to the refined glassware in your kitchen cabinet, the journey of a Xinghuo glass is one of science, artistry, and unwavering quality control. Whether you’re sipping morning coffee from our borosilicate tumbler or toasting with lead-free crystal flutes, you’re experiencing centuries of glassmaking heritage—reimagined for modern living. Explore our full collections of glass drinkware, dinnerware, and barware—designed in Europe, crafted in China, loved worldwide. About Xinghuo Glass Xinghuo Glass is a leading manufacturer of premium home glassware, specializing in lead-free crystal glass and high borosilicate glass products for the global market. With ISO 9001 certifications, we deliver beauty, safety, and sustainability in every piece. 🌍 Serving customers in the USA, Canada, UK, Germany, France, Australia, and beyond. 📧 Contact us for wholesale inquiries or custom design collaborations.