OMGTea Matcha Review UK 2026: Tested and Rated
Head of Editorial
Twelve sessions. Two grades. One honest verdict on whether OMGTea lives up to its ceremonial claims.
Table of Contents
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The first honest test for any matcha claiming ceremonial quality is the colour. Tip the powder onto a white ceramic surface and look. Dull, yellowed, or grey-tinged powder tells you more about grade than any marketing label. When I opened my first tin of OMGTea AAA matcha for this review, the powder was a vibrant, saturated green - the kind that reads immediately as shade-grown and first-harvest. That is a good start. Whether the quality holds across taste, sourcing transparency, and price-per-gram value is what I set out to determine over two weeks of morning testing.
OMGTea is a UK matcha brand founded in 2014, selling a four-tier range from AA to AAA+ and a limited-edition Green Gold at the top. The brand is B Corp certified and carries organic certification across its full matcha range. I tested the AA Grade (£19.95/30g) and the AAA Grade (£24.95/30g) across twelve sessions, whisking both as straight ceremonial matcha and as a matcha latte. Here is what I found.
Editor's Note
Who Is OMGTea?
OMGTea was founded by Katherine, a female entrepreneur who started the brand after her mother's 2009 cancer diagnosis prompted deep research into green tea antioxidants. The company is headquartered in the UK and sources its matcha from Japan, graded by harvest intensity. The brand received B Corp certification and holds organic certification across its product range.
The grade structure is one of the clearer examples in the UK market. AA uses first and second harvest leaves combined - more accessible in price and suited to lattes and cooking. AAA uses first-harvest leaves only, ground traditionally with granite stone mills, targeting the ceremonial drinker. The AAA+ and Green Gold tiers move into premium gift and collector territory.
The brand stocks in Holland and Barrett, Planet Organic, Selfridges, and Ocado, which signals mainstream retail credibility. The Great Taste Award history (1-Star for the AA, 1-Star Great Taste Award for the AAA) is a verifiable third-party quality signal that distinguishes OMGTea from many UK matcha brands selling unverified ceremonial grade claims.
How I Tested It
I tested both the AA and AAA grades across 12 sessions over two weeks. Every session used the same method: 1g of matcha powder, 80ml of water at 80 degrees Celsius, whisked for 30 seconds with a bamboo chasen in a W motion. I tested each grade as a straight ceremonial drink (60ml water) and as a matcha latte (with oat milk, no sweetener).
The key variables I assessed were: colour vibrancy when dry and when whisked, umami depth versus bitterness balance, froth consistency, and whether the powder clumped during preparation. The brief notes from the Amazon product listing that OMGTea matcha will form lumps if not prepared correctly - this is accurate for the AA grade and worth flagging to buyers unfamiliar with the sift-and-whisk method. The AAA powdered more finely and clumped less.
Grade, Colour, and Taste
The AA grade powder is bright green but not the deepest shade I have tested. It whisked smoothly into an even, frothy bowl with no significant resistance. As a straight tea it is mild, with a clean vegetable sweetness and minimal bitterness on the finish. The umami note is present but light. This is exactly what the brand advertises: a drinkable, accessible matcha, best suited to lattes where the milk benefits from a punchy green base without the grade needing to carry a straight-tea experience.
The AAA grade is visibly more vivid. Placed side by side with the AA on a white surface, the colour difference is immediate - the AAA reads emerald rather than green. Whisked, it produces a thicker, more sustained froth. As a straight tea, the difference is more pronounced than the £5 price gap might suggest: there is a distinct umami sweetness upfront, less bitterness overall, and a longer, smoother finish. The mouthfeel is rounder. This is a matcha that rewards drinking straight from a chawan rather than burying in a latte.
| Evaluation Criteria | AA Grade (£19.95/30g) | AAA Grade (£24.95/30g) |
|---|---|---|
| Dry colour | Bright green | Vibrant emerald |
| Whisked froth | Even, moderate | Thick, sustained |
| Umami depth | Light | Distinct |
| Bitterness | Minimal | Minimal - lower than AA |
| Best use | Lattes, smoothies | Straight ceremonial tea |
| Award | 1-Star Great Taste | 1-Star Great Taste 2023 |
The AA performs well for its price. The AAA is the more characterful product and the one I would recommend for anyone buying OMGTea specifically to drink ceremonially.
Sourcing and Transparency
OMGTea sources from Japan, which is the origin most associated with ceremonial-grade shade-grown matcha. The brand states its leaves are graded by intensity each harvest, which is consistent with the multi-tier grade structure. The B Corp certification covers social and environmental standards across the business.
On the question the brief flags as a key reader anxiety - third-party heavy metal, pesticide, and radiation testing - OMGTea confirmed it publishes testing. At the time of writing, I was not able to locate the live lab test reports on the OMGTea website during my research pass. The organic certification (present across the full range) requires compliance with the EU organic regulation on pesticide residue limits, which provides a baseline assurance. The brand's B Corp status and Great Taste accreditation signal a business operating to externally audited standards.
For buyers for whom published third-party heavy-metal testing is a non-negotiable, I recommend contacting OMGTea directly to request the latest test certificate before purchasing. The brand's track record and certification stack is strong enough to earn confidence, but the lab results page was not accessible during this review. This is not uncommon in the UK matcha market and does not represent a red flag, but it is worth naming directly.
Price and Value Per Gram
The OMGTea range spans £19.95 for the AA (£0.67/g) to £24.95 for the AAA (£0.83/g) at the brand's own site. Retail pricing adds a margin: the AAA is £27.50 at Planet Organic and £25.99 at Selfridges. Holland and Barrett stock the AAA at £24.95 (matching brand price at the time of writing - verify before purchase as H&B pricing fluctuates).
To put this in context, I cross-checked against two other well-regarded UK ceremonial matcha brands I have reviewed for Balance Journal.
| Brand | Grade | Price | Cost per gram |
|---|---|---|---|
| OMGTea AA | AA (first + second harvest) | £19.95/30g | £0.67/g |
| OMGTea AAA | AAA (first harvest only) | £24.95/30g | £0.83/g |
| Jade Leaf | Ceremonial | £19.95/30g | £0.67/g |
| Bird and Blend | Ceremonial Matcha | £22.50/30g | £0.75/g |
OMGTea's AA sits at competitive market pricing for its tier. The AAA is positioned at mid-range among UK ceremonial grades - not the most affordable option, but the Great Taste Award and multi-tier grade range provide objective justification for the premium over unawarded alternatives.
The 50g AA option (£28.95) brings the per-gram cost down to £0.58/g - a meaningful saving for daily drinkers using matcha primarily in lattes and smoothies.
What to Avoid
- The wrong grade for your use case. The AA is optimised for lattes and blended drinks. Buying it to drink straight as a ceremonial tea and expecting the same experience as the AAA will lead to disappointment. The reverse is also true: paying AAA prices to bury the flavour in a strong oat milk latte is unnecessary. Match the grade to how you actually drink matcha.
- Skipping the sift. The AA grade in particular benefits from sifting before whisking. The powder is finer than culinary-grade matcha but not as fine as the AAA. Skipping this step produces clumps, and whisking clumps does not dissolve them fully. A £5 bamboo chasen and 30 seconds of proper W-motion whisking transforms the result.
- Buying retail without checking the price. The brand price and Planet Organic price for the AAA differ by £2.55. If you are purchasing regularly, the brand site or Holland and Barrett (when matching brand price) is the sensible choice.
Verdict
OMGTea is one of the more credible UK matcha brands at this price point. The grade structure is transparent, the certifications are verifiable, and the Great Taste Awards provide third-party quality confirmation that most UK matcha competitors cannot match. The AA is a solid, well-priced everyday matcha for latte drinkers. The AAA is the product worth buying if you want to drink matcha ceremonially - its colour, umami depth, and low bitterness place it clearly above the AA and justify the price difference.
For broader context on how OMGTea sits within the UK ceremonial matcha landscape, our guide to the best matcha brands UK covers the full market. For sibling reviews at this price tier, see our Ritual and Flow matcha review, Bird and Blend matcha review, and Jade Leaf matcha review.
Recommended: OMGTea AAA Grade 30g (£24.95 direct). For daily latte use: AA Grade 50g (£28.95).
For readers who are rotating off coffee or reducing caffeine and exploring low-jitter alternatives, matcha is one route - another worth considering is best lions mane coffee uk, which pairs functional mushroom adaptogens with a coffee-like ritual for those who want to stay close to the morning coffee format.
Frequently Asked Questions
Is OMGTea good matcha?
Yes, particularly the AAA grade. Across twelve sessions of testing, the AAA delivered a vibrant emerald colour, distinct umami sweetness, and low bitterness that marks genuinely first-harvest ceremonial matcha. The 1-Star Great Taste Award provides independent confirmation. The AA is a reliable everyday option for lattes and smoothies at a competitive price per gram.
Is OMGTea matcha ceremonial grade?
The AAA and AAA+ grades qualify as ceremonial matcha. Both use first-harvest leaves only, stone-ground with traditional granite mills. The AA grade is not ceremonial - it combines first and second harvest leaves, which makes it better suited to blended drinks and lattes. OMGTea is transparent about this distinction, which is not true of every UK matcha brand.
What is the highest quality matcha brand?
No single brand holds an objective claim to this title - quality varies by harvest and grade tier. Among UK-available brands, OMGTea AAA and AAA+ sit alongside Clearspring and Ippodo in the upper tier of verified, organic, first-harvest Japanese ceremonial matcha. Our best matcha brands UK guide benchmarks the full market against consistent criteria if you want a comparative view.
How can you tell if matcha is high quality?
Four indicators: colour (vibrant emerald when dry, not dull or yellowish), texture (fine and silky when rubbed between fingers, no grit), origin (shade-grown, Japan, first harvest), and taste (distinct umami sweetness, minimal bitterness on the finish). Low-grade matcha sold as ceremonial tends to taste grassy or bitter rather than sweet and round. The colour test on a white surface is the fastest single check.
Is there a downside to drinking matcha?
Cost and preparation are the main practical ones. The AAA grade at £0.83/g costs around £25/month for a daily habit. Preparation requires sifting and proper whisking - skip either and the result suffers. Matcha contains around 32-35mg caffeine per 1g serving (NHS recommends limiting total caffeine to 400mg/day). EFSA has not authorised health claims for green tea, so treat fat-burning or cortisol claims as unverified.
Where is OMGTea matcha sourced and is it tested for heavy metals?
OMGTea sources from Japan and holds organic certification, which requires compliance with EU pesticide residue limits. The brand states it tests for radiation, heavy metals, and pesticides. During this review, I was not able to locate the live lab test reports on the OMGTea website - contact the brand directly to request the current certificate if third-party testing documentation is a purchase requirement for you. The organic certification and B Corp status provide a baseline quality assurance.
How much does OMGTea matcha cost and is it worth it?
The AA Grade is £19.95 for 30g (£0.67/g) direct from the brand, with a 50g option at £28.95 (£0.58/g). The AAA Grade is £24.95/30g direct - £27.50 at Planet Organic and £25.99 at Selfridges. For ceremonial drinkers, the AAA is worth the price: the sensory gap between the AA and AAA is noticeable enough to justify the £5 difference per 30g tin. For latte and smoothie use, the AA 50g is the best value option in the range.
Does matcha lower cortisol or help with belly fat?
The evidence does not support these claims. EFSA has declined to authorise health claims for green tea related to fat metabolism or stress hormones. The NHS does not include matcha in weight management guidance. L-theanine (around 6.41mg per 1g serving, per OMGTea published figures) is associated with calm focus combined with caffeine, but that is distinct from cortisol reduction or fat loss. Treat these marketing claims cautiously.
A seasoned food and lifestyle writer with over a decade in London's hospitality scene, Snita explores the culture of dining, drink, and connection.