We're here to help.

Answers to common questions and everything in between.

YŪ SEI Matcha

YŪ SEI is not another matcha brand built around trends, exaggerated claims or borrowed labels.

We source exceptional Japanese matcha and present it with honesty: where it comes from, how it was made and what you can expect in the bowl.

Everything else is left to the experience.

No. Japan does not grade matcha as “ceremonial”, “premium” or “café grade”.

These terms were created to market matcha outside Japan. They have no official definition, no agreed standard and no recognised grading authority behind them.

A brand can place “ceremonial grade” on almost any matcha it chooses.

YŪ SEI does not use invented grades. We tell you what actually matters: origin, harvest, cultivation, production and taste.

No. Single origin simply tells you that a tea came from one defined source. It does not guarantee quality.

In Japan, blending is a highly respected craft. Skilled tea masters combine leaves from different cultivars, gardens or harvest lots to create greater balance, depth and consistency.

Many of Japan’s most respected matcha houses are celebrated for their blending expertise. It is not a compromise or a way to disguise inferior tea. At its best, it is the final act of craftsmanship.

Single-origin matcha can be exceptional. So can a blend. The words on the tin matter less than the knowledge behind the tea.

Nothing but 100% Japanese matcha.

No sweeteners.
No flavourings.
No fillers.
No additives.

Our matcha is sourced from Uji, Kyoto, a region shaped by centuries of Japanese tea cultivation and craftsmanship.

YŪ SEI matcha is made using first-harvest tea leaves, known in Japan as ichibancha.

These young spring leaves are carefully selected for their colour, aroma and balanced character.

YŪ SEI matcha is crafted from a blend of Okumidori and Yabukita.

Yes. The finished tencha leaves are slowly ground using traditional granite stone mills in Japan.

This gradual process creates the fine texture needed for a smooth, balanced bowl.

Yes.

It can begin the morning, accompany an afternoon pause or simply create a moment in the day that belongs to you.

There is no prescribed time for stillness.

Yes.

YŪ SEI matcha was chosen to be enjoyed traditionally as usucha or koicha, where its complete character can be experienced. However, its smoothness and balance also allow it to pair beautifully with milk.

Yes. YŪ SEI contains only pure Japanese matcha and no animal-derived ingredients.

Matcha is naturally free from gluten, and YŪ SEI contains no added ingredients.

It is not currently presented as independently certified gluten-free.

Preparation

Sift 2–4g of matcha into a bowl.

Add water heated to approximately 70–80°C, then whisk briskly in an “M” motion until the surface becomes smooth with a fine, even layer of foam.

Enjoy it as it is or add more water to taste.

Begin with 2g for usucha or 4g for koicha.

The right amount is ultimately the one that tastes right to you.

We recommend water between 70°C and 80°C.

Boiling water can overwhelm matcha’s more delicate qualities and bring bitterness forward.

You do not need one, but we recommend it.

A bamboo whisk, or chasen, disperses the fine powder evenly and creates the smooth texture and delicate foam traditionally associated with matcha.

Matcha is ground into an exceptionally fine powder and naturally settles into small clumps.

Sifting separates the particles before water is added, helping the matcha whisk more evenly and creating a smoother bowl.

Small clumps are natural and do not indicate poor quality.

Because matcha is extremely fine and sensitive to moisture, the powder can gather together during storage. A quick sift before preparation is usually all it needs.

Foam is affected by the amount of water, its temperature, the shape of the bowl and your whisking technique.

Use a wide bowl, keep the whisk just above its base and move quickly from the wrist rather than stirring in circles.

The aim is a fine, even surface - not large bubbles.

Yes. A handheld frother or sealed shaker can disperse matcha, although the texture will differ from a bowl prepared with a bamboo whisk.

We would not recommend it.

Water that is too hot can flatten the aroma and emphasise bitterness. Allow freshly boiled water to cool before pouring.

Store in a cool, dry place away from direct sunlight, heat, moisture and strong odours. After opening, close the tin securely after each use and consume within 8 weeks for optimum freshness. Keep the freshness keeper inside the tin. Do not eat or open the sachet.

For the best colour, aroma and flavour, we recommend enjoying YŪ SEI matcha within four to eight weeks of opening.

Keep the freshness keeper inside the tin. Do not eat or open the sachet.

Orders & Delivery

Yes. Standard UK delivery is complimentary on orders of £60 or more.

A £2.99 delivery charge applies to orders below £60.

Yes. Every YŪ SEI order is sent using a tracked delivery service.

Your tracking details will be sent once the parcel has been dispatched.

Orders are usually prepared and dispatched within one to two business days.

During particularly busy periods, a little longer may be required. Your tracking information will be sent as soon as your order begins its journey.

Delivery time depends on your location and selected shipping service.

An estimated timeframe will be shown at checkout, followed by tracking information once your order has been dispatched.

Please contact us as soon as possible.

We will always try to help, but once an order has been prepared or passed to the courier, we may no longer be able to change or cancel it.

If you wish to return an eligible item, please notify us within 14 days of receiving your order. Contact hello@yusei.co.uk before returning your order. Please read our Returns & Refund Policy for full eligibility details and exceptions.

Courier delays can occasionally happen.

If your tracking has not updated or your parcel has exceeded the expected delivery window, contact us. We will investigate directly with the courier and keep you informed.

Every YŪ SEI order is carefully inspected before dispatch to ensure it leaves us in perfect condition. Before your parcel is sealed, we photograph both the product and its packaging to document the condition in which it was sent.

Our delivery partners also capture proof of delivery, which may include photographs of the parcel at the point of delivery. Together, our dispatch records and the courier’s delivery evidence help establish whether any damage occurred during transit or after delivery.

If your order arrives damaged, please contact us within 48 hours of delivery with your order number and clear photographs of the damaged item, its packaging and the shipping box. We’ll review the information alongside our dispatch records and the courier’s delivery evidence to determine what happened and, where appropriate, arrange a resolution.

Every YŪ SEI parcel is sent using a tracked delivery service, and our delivery partners obtain proof of delivery, which may include GPS data and a photograph of the parcel at the delivery location.

If your parcel is marked as delivered but you cannot locate it, please first check any safe places around your property and ask members of your household or nearby neighbours.

If it is still missing, contact us promptly. We will review the courier’s proof of delivery alongside our own dispatch records and, where appropriate, open an investigation with the courier.

Still need help?

Get in touch