Frequently Asked Questions

Our quiz asks you a series of carefully designed questions about your taste preferences, daily routine, and wellness objectives. Using our proprietary AI engine, we analyze your responses against a database of over 480 tea profiles to generate your personalized tea match. The entire process takes under three minutes and delivers instant results.

Yes, the VectorStackBase quiz and platform are fully available in both English and Japanese. We are committed to serving our domestic Japanese audience with the same depth and quality as our international users. Additional language options are currently in development.

Absolutely — you are welcome to retake the quiz at any time, and we actually encourage it as your palate evolves. Registered users can also rate teas they have tried, which helps our system continuously refine your profile automatically. Your tea journey with us is designed to grow alongside you.

Every partner estate undergoes a rigorous evaluation process led by our Chief Tea Officer and certified tasting panel, assessing quality, cultivation practices, and ethical standards. We prioritize estates that demonstrate a commitment to both traditional craftsmanship and environmental sustainability. Our partnerships are reviewed annually to maintain the highest standards for our users.

After completing your quiz, you can opt into our monthly subscription service, which delivers a curated selection of teas matched to your profile directly to your door. Each box includes tasting notes, brewing guides, and estate background cards for a complete discovery experience. You can pause, adjust, or cancel your subscription at any time through your account dashboard.

Yes, VectorStackBase offers a dedicated B2B analytics platform that provides tea brands, retailers, and estates with actionable consumer trend data and preference insights. Our business clients use these insights to refine product offerings, target marketing campaigns, and identify emerging market opportunities. Please contact our team at support@vectorstackbase to learn more about our business partnership options.