Introduction:Combo cups have gained popularity by allowing consumers to enjoy multiple flavors from a single coffee bean. However, recent user reports of the specialized hulu cup cracking during preheating have raised concerns about its heat resistance. This article delves into the origins and design intent of the Combo, analyzes the practicality and material limitations of this combo cup, and provides correct preheating steps and purchasing advice to help readers avoid common usage mistakes.
In recent years, the Combo format has become a common sight on café menus, enabling customers to enjoy both an Americano and a latte for the price of one drink. Yet this innovative "one bean, multiple drinks" approach—paired with its specially designed hulu combo cup—has recently sparked debate after reports of the glass cracking during preheating. Users have reported that the cup suddenly shattered when hot water was poured in during a normal preheating process. Customer service explained that the issue was caused by the glass being unable to withstand the extreme temperature difference. However, it remains confusing that the product page did not clearly indicate the temperature tolerance or usage precautions, leading many coffee enthusiasts to question: if it can’t even hold hot water, can this cup truly serve its intended coffee purposes?
The Combo drink format originally stems from international coffee competitions. Contestants are required to use the same coffee bean to prepare both an Americano and a latte, showcasing their command of the bean’s characteristics and the expressive potential of different brewing methods. This not only tests the barista’s skills but also directly reflects the flavor potential of the bean. As the influence of these competitions grew, the Combo gradually made its way into regular cafés, becoming an innovative way for customers to appreciate a single bean from multiple angles.
In practice, baristas typically use a dual-head extraction setup to simultaneously pull two shots of espresso, then add hot water and milk respectively to create an Americano and a latte. This method not only saves time but also ensures consistency in flavor between the two drinks. Since each serving of Combo is usually only about 100ml, standard coffee cups are not suitable. As a result, smaller cup sizes specifically designed for Combo have gradually emerged, catering to both shop and home users.
Among them, the hulu combo cup quickly gained popularity on social media due to its unique shape and design tailored to Combo needs. According to the official description, this set includes a tapered cup ideal for Americano and a wide, belly-like cup designed for latte, both of which can be placed side by side under the coffee machine to catch the extraction simultaneously. Beyond its functionality, its appearance has also attracted the attention of cup collectors. However, recently some users have experienced the cup cracking during preheating, sparking widespread discussion about its material and heat resistance.
Affected consumers described that they followed the usual steps to preheat the cup before making an Americano—simply pouring hot water into the cup—when it immediately cracked. Customer service explained that the cup is made of ordinary glass, which cannot withstand drastic temperature changes. The issue, however, lies in the fact that the product page did not clearly indicate the temperature tolerance or usage restrictions, causing users to experience damage without prior knowledge. Many netizens have expressed that if the cup can’t handle hot water, it’s simply not suitable as a coffee vessel, arguing that the product design overlooked real-world usage scenarios and material properties.
Industry insiders point out that the heat resistance of glassware depends on the material type and manufacturing process. Generally speaking, heat-resistant glass can withstand instantaneous temperature differences of over 100°C, while ordinary soda-lime glass typically only handles around 50°C. If users do not confirm the cup’s material and heat tolerance in advance, pouring hot water during preheating can easily lead to cracking. It is recommended that users ensure the product is labeled as heat-resistant glass and carefully read the usage instructions to avoid damage caused by excessive temperature differences.
Additionally, for coffee enthusiasts who enjoy recreating Combo at home, experts suggest preheating the cup first with warm water before gradually increasing the water temperature, avoiding the direct pouring of boiling water. Choosing heat-resistant cups specifically designed for coffee can more effectively ensure safety and enhance the drinking experience. As an innovative way to showcase the multifaceted flavors of coffee beans, Combo equipment design should prioritize practicality and safety over mere aesthetic appeal.
This incident of the hulu combo cup cracking during preheating not only prompts consumers to re-evaluate their criteria for selecting coffeeware, but also highlights the balance between practicality and aesthetics in product design. For coffee professionals and enthusiasts alike, understanding the material properties of utensils and the correct methods of use is essential to fully enjoy coffee flavors while avoiding unnecessary losses and risks.
The above content is compiled by CoffeeHunters, a coffee news website.
