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Why choose this Jianzhan Tenmoku tea cup
This piece is selected for tea, coffee, sake, daily rituals, display, and gifting. Its iron-rich glaze and high-fired ceramic body give it the dark depth, natural patterning, and hand-finished character associated with Jianzhan Tenmoku ware.
Handmade character
Each piece has natural kiln variation in glaze pattern, color depth, and surface detail.
Ready to gift
Suitable for tea lovers, ceramic collectors, birthdays, holidays, and housewarming gifts.
Fast support
Ships in 1-2 business days with tracking and customer support if you need help choosing.
Low-risk purchase
Backed by Tenmokus' 30-day return policy and 4.9/5 customer rating.
Gaze into a universe of color with the Nebula—a handmade Tenmoku tea cup that captures cosmic swirls in purple and violet. For tea lovers seeking beauty in every sip, this cup transforms your daily tea ritual into a meditative experience. The iron glaze creates oil-spot crystals that shimmer like distant galaxies, while high-fired porcelain ensures durability and perfect heat retention. Whether for yourself or as a meaningful gift, the Nebula invites you to hold the cosmos. No two cups are alike—each one is a unique, one-of-a-kind work of art.
Product Specification
Capacity
Diameter
Depth
Heat Resistent
Food Safe
Dishwasher
Microwave
Direct Heat on Stove
Frequently Asked Questions
Is this Nebula Jianzhan tea cup handcrafted?
Yes, this cup is entirely handcrafted by skilled artisans using traditional Jianzhan techniques passed down through generations. Each piece is shaped from iron-rich clay and meticulously fired at high temperatures, ensuring no two cups are exactly alike.
What makes the purple and violet glaze on this cup so unique?
The glaze features natural oil-spot and crystal patterns that form during the high-temperature firing process, creating cosmic nebula swirls of purple and violet. Because the iron-rich clay reacts unpredictably in the kiln, every cup develops a one-of-a-kind surface that cannot be replicated.
Can I use this Nebula cup for beverages other than tea?
Absolutely, this versatile cup is designed for tea, matcha, coffee, sake, and even espresso. Its wide mouth and smooth glaze make it suitable for any hot or cold beverage you enjoy.
Is the Nebula Jianzhan cup food-safe and durable for daily use?
Yes, the cup is high-fired at over 1300 degrees Celsius, making it extremely durable and non-porous. It is lead-free, food-safe, and retains heat exceptionally well, keeping your drinks warm longer.
How should I care for my Nebula cup to maintain its beauty?
Hand wash the cup with mild soap and a soft sponge, avoiding abrasive cleaners that could scratch the glaze. To enhance its luster, season the cup by steeping tea in it regularly, and always let it air dry completely before storing.
Does this Nebula cup make a good gift for a tea lover or collector?
Yes, it is an excellent gift for tea enthusiasts, matcha lovers, collectors of fine ceramics, or anyone who appreciates zen-inspired artistry. The unique nebula glaze and handcrafted nature make it a thoughtful and memorable present.
In stock! Ships within 1-2 business days.
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UPS & Fedex Shipping with Tracking.
Pairs well with

Nebula
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
- Ships international.
- Ships within 1-2 business days.
- Ships with UPS and Fedex. Tracking will be available. -
FAQ’s
Visit our Shipping & Returns page to find answers to common questions.
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Contact Us
Give us a few details and we’ll offer the best solution.
Our team is here to help. Visit our contact page to send us a message. We will get back to them within 48 business hours.
Over 72 Hours of Precision Handcrafting
Each piece of Tenmokus Teaware undergoes dutiful handcrafting taking more than 72 hours to finish. Craftsmanship is very important to us: it is the high quality of our craftsman work that makes each piece of Tenmoku pottery so special. Our artisan craftsman train for years to create stunning pieces that you can both use in your everyday life and display as works of art. Each Tenmokus piece is lovingly created by hand, ensuring that each piece is truly unique.
Own a Masterpiece in Teaware Industry
What makes these teaware so special is both their unique shape and their specialist glaze. Juanzhan Tenmoku tea cups are bowl shaped, but with a wide brim that allows the tea to stew and cool perfectly. They are glazed at a very high heat using a glaze with a high iron content, which creates a blackened and distinctively beautiful pattern that is unique only to Jianzhan Tenmoku pottery.
Elegent Gift Item & Gorgeous Presentation Box
Tenmokus Tea ware masterpieces are perfectly suited to be used as elegant gift items for all occasions. You can either shop one for yourself or a loved one when there’s need for a gift. These beautifully-crafted designs will serve as the ideal gift for weddings, birthday parties, Christmas get-togethers, office parties, housewarming, reunions or any family hangouts. All our tea ware comes with an elegant presentation box.
Heat Preservation & Improve the Taste
Many people say that no matter the liquor, water or coffee, will all become more mellow and delicious when they are in a Jian Zhan Tenmoku tea cup. That is because the special functional design of Jian Zhan Tenmoku for its iron content, sand content, as well as the thickness of the cup embryo and glaze. Therefore, using Jian Zhan to drink tea, it can help to preserve the heat for a long time and to improve the alkalinity in the tea liquid, so that to ensure the taste of tea, and also stimulate and enhance the aroma of the tea.
FAQs
Please read our Shipping and Returns page to find out more.
What is Tenmoku Teaware?
Tenmoku glazes have high iron-content, creating rich colors and shiny surfaces. When fired, the iron forms patterns like oil spots or streaks, giving each piece a unique look.
Are they food safe?
Yes, they are 100% food safe.
Do they contain lead?
As the clay comes from the ground, there is no guarantee that the wares are 100% free of lead. It's less than 0.01%. It' safe to use. The fluxing agent for the glaze is natural iron ore and wood ash, not a bit of lead was used in the process.
Do you ship internationally?
Yes, we do ship worldwide. United States, Canada, France, Belgium, Germany, Netherlands, Switzerland, United Kingdom, Ireland, Iceland Spain, Portugal, Denmark, Finland, Norway, Sweden, Slovenia Poland, Hungary, Austria, Czech Republic, Israel, Japan, South Korea, Vietnam, Singapore, Malaysia, Thailand, Philippines, Indonesia, Australia, New Zealand, Italy, Brazil, Chile, South Africa, UAE, Kuwait, Saudi Arabia, Lebanon.
What is your return policy?
If you are not happy with it, you can send it back within 30 days for an exchange or refund. No question asked.

