1. Product Overview: One 64-ounce (approx. 2.0L) square glass Mason jar cold brew coffee maker. Includes a plastic lid with spout (drip-free). One fine stainless steel filter (tall or short options available). Packaged in a cardboard box, with an optional cleaning brush. Large capacity for daily use, gatherings, camping, bars, and more. Note: This cold brew coffee maker is not designed for extreme temperature changes. Avoid pouring hot water directly into the cold jar.
2. Premium Materials: Royaltop's glass cold brew coffee pitcher features thick, durable food-grade soda-lime glass and a high-quality PP plastic lid, free from BPA. The glass jar weighs 630g with smooth edges for long-lasting durability and reduced breakage risk. Additionally, we offer a matching 1000ml (32oz) glass coffee pittcher.
3. Pouring Spout & Handle Lid: The ergonomic, thickened handle ensures a comfortable, secure grip for easy transport of the cold brew coffee maker. The tightly sealed spout and silicone gasket effectively prevent liquid spills and food odors, extending the freshness of refrigerated beverages. The flip-top design and carrying loop make this cold brew coffee maker a convenient container for pouring and storage.
4. Ultra-Fine Filter: Crafted from premium food-grade 304 stainless steel, this 160-micron mesh filter prevents coffee grounds from entering the glass jar, ensuring a smooth, enjoyable brew. It also strains tea leaves, fruit pits, and other beverage residues. Remove the filter to use the jar as a storage container or glass pitcher for other beverages.
5. Easy Cleaning: This wide-mouth mason jar coffee pot conveniently holds your favorite beverages, such as cold brew coffee, iced tea, sun tea, breast milk, lemonade, and more. Cleaning this cold brew coffee pot is exceptionally simple. You can choose to wash it in the dishwasher or by hand, effortlessly maintaining its cleanliness.
6. Premium Supplier: As a 12-year Alibaba-certified supplier with over 20 years of glass container manufacturing experience, Royalop offers diverse OEM services. Customization options include shape, capacity, color, and packaging. We hold ISO9001, FDA, LFGB, and SGS certifications. Free samples are available, with standard samples shipped within 3-7 days.
Product Information
| Product Name: | Iced Coffee Maker |
| Manufacturer: | Royaltop |
| Model: | CFH-15 |
| Material: | Soda-lime glass, PP, 304 stainless steel |
| Shape: | Square |
| Capacity: | 32oz, 64oz |
| Features: | With handle, with filter |
| Accessories: | Cleaning brush |
| Packaging: | Carton Boxes, White Paper Boxes, Custom Color Paper Boxes |
| Logo: | Screen-printed |
| Suitable for: | Home |
| Suitable liquids: | Water, Cold Coffee, Ice Tea, Juice, Alcohol, Milk |
| Temperature range: | -10°C ~ 30°C |
| Samples: | Available |
| Delivery time: | 15~35 days |
| MOQ: | 5000 Pcs |
Usage Guidelines for Sodium-Calcium Glassware:
Sodium-calcium glassware (the most common type of everyday glassware, such as standard drinking glasses and tableware cups) requires temperature considerations based on material properties and usage scenarios. The key is to avoid breakage caused by “sudden temperature changes.” Specific temperature ranges and precautions are as follows:
I. Core Usage Temperature Range
1. Standard Usage Temperature: -20°C to 120°C
This is the safest temperature range for sodium-calcium glass, covering everyday scenarios:
- Low end: Can briefly hold chilled beverages (e.g., 4°C ice water, refrigerated milk) or be placed in the refrigerator (avoid direct contact with inner walls to prevent localized rapid cooling).
High-Temperature End: Can hold warm or hot water (e.g., 80°C to 100°C boiling water), but note the **“preheating”** requirement (see precautions below). Never pour scalding liquids directly into the glass.
2. Maximum Temperature Tolerance (Not for Long-Term Use): Sodium-calcium glass has a softening point of approximately 600°C to 700°C. However, this refers to industrial processing temperatures. In daily use, never expose it to high heat sources (e.g., open flames, microwaves, ovens). Uneven heating can cause rapid breakage and pose safety risks.
II. Critical Usage Restrictions: Avoid Thermal Shock
The primary weakness of sodium-calcium glass is its inferior thermal stability (compared to borosilicate glass). When temperature differences exceed 50°C to 80°C across different parts of the vessel, uneven thermal expansion and contraction can cause shattering. Strictly avoid the following actions:
❌ Pouring 100°C boiling water directly into a cold cup that recently held ice water (around 0°C);
❌ Immediately rinsing a hot cup (used for porridge/soup over 90°C) with cold water or placing it in the refrigerator;
❌ Placing a cold cup directly on a hot stove or radiator to warm it;
❌ Heating it in a microwave (unless explicitly labeled “microwave-safe” on the base; most standard sodium-calcium cups are not microwave-safe).
III. Safety Usage Recommendations
1. Preheat before hot water: When filling with boiling water, first pour a small amount of warm water and swirl the cup to evenly heat the walls (10–20 seconds). Gradually add hot water to significantly reduce breakage risk.
2. Identify “Special-Treatment Sodium-Calcium Glass Cups”: Some brands subject sodium-calcium glass to “physical strengthening” (e.g., rapid cooling treatment) to enhance thermal stability. Such cups may be labeled “Heat Shock Resistance ≥100°C,” allowing broader usage. Always follow product instructions (treat as standard sodium-calcium glass if unlabeled).
3. Avoid prolonged exposure to extreme temperatures: While briefly holding ice water or hot water is acceptable, prolonged storage (e.g., over 24 hours) is not recommended. This prevents microscopic cracks from forming due to sustained thermal stress (invisible to the naked eye but prone to breakage later).
IV. Comparison with Borosilicate Glass (For clearer selection)
V. In summary, standard sodium-calcium glass cups are safe for daily use with “lukewarm water, hot water (requires preheating), and ice water.” The key is to avoid “sudden temperature changes” and “direct high-heat sources.” Proper usage according to the scenario will extend the product's lifespan.
