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TONZE Mini Double Boiler
A New Double Boiler Designed for Solo Dining
Innovation Insights
Project Background
As the leading brand in the water-sealed stew pot category, Tianji once held a strong position in the market. However, with major home appliance brands such as Midea, Joyoung, and SUPOR entering the category, competition intensified and Tianji’s market share continued to decline.
To create new growth opportunities, Tianji partnered with LKK Design. The project aimed to drive product innovation through in-depth user insights and identify new market opportunities.
Innovation Insight
Water-sealed stew pots have traditionally been a regional product category, mainly popular in southern China, where consumers have a strong habit of preparing and drinking soup.
However, Tianji’s existing product portfolio had not been developed around the different dietary needs of specific user groups, such as people living alone, traditional families, and modern young families.
This created an opportunity to develop more targeted products based on different household structures, eating habits, and usage scenarios.
Design Strategy
Market Research
China’s emerging consumer groups include a growing number of single people and individuals living alone. As a result, solo dining has become an important daily eating scenario among younger consumers.
However, Tianji’s existing product line did not include a water-sealed stew pot specifically designed for the solo dining market.
User Insight
Through data analysis, we found that the usage scenarios of water-sealed stew pots for people living alone are different from those of traditional families.
For solo users, the product is more frequently used to prepare sweet soups and desserts, such as tremella soup and bird’s nest, rather than to cook complete daily meals.
Product Strategy
Focusing on the solo dining market, we designed a refined dessert-oriented product that brings comfort, enjoyment, and a greater sense of happiness to the experience of preparing sweet soup for one person.
💡 Solution
1. Refined Dessert-Oriented Design
A refined dessert experience naturally reflects more feminine characteristics. Therefore, we created a more visually appealing product style.
Electroplated details and smooth curved forms were introduced to express the delicacy, pleasure, and emotional satisfaction associated with preparing and enjoying desserts.
2. 0.8-Liter Capacity
Based on user data and single-person serving requirements, the product capacity was defined as 0.8 liters.
This capacity provides an ideal balance for solo users, reducing food waste while meeting the practical needs of preparing sweet soups, tremella soup, bird’s nest, and other desserts.
3. Three One-Touch Stewing Modes
The product provides three stewing modes that can be activated with one touch.
The simplified operating system allows users to prepare different types of desserts easily, making the cooking process more convenient, intuitive, and enjoyable.
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