Articles
Matcha Tea Tests Confirm Top Purity: Japanese Quality You Can Trust
Matcha Tea Tests Confirm Top Purity: Japanese Quality You Can Trust
- Published
- 24. 10. 2025
- When we say we care about quality, it’s not just words. Fresh laboratory reports for Harmony, Imperial, and Premium confirm: pesticides below the limit of detection, microbiology clear, and heavy metals well below our internal safety limits. And we’re adding caffeine data per serving – so you know exactly how much energy to expect from your matcha.
Matcha tests and great results
Pesticides (multi-residue screening):
none detected in any of the 3 batches.
Microbiology:
bacteria within the norm.
Heavy metals LEAD Pb, CADMIUM Cd, CHROMIUM Cr:
Harmony (batch 250901): well below the limit.
Imperial (batch 080425 and 250901): well below the limit.
Premium (batch 080425 and 250901): well below the limit.
We have complete laboratory documents for free download:
HARMONY
Batch 250901:
→ Pesticide Test (pdf)
→ Heavy Metal Test (pdf)
IMPERIAL
Batch 080425:
→ Pesticide Test (pdf)
→ Heavy Metal Test (pdf)
Batch 250901:
→ Pesticide Test (pdf)
→ Heavy Metal Test (pdf)
PREMIUM
Batch 080425:
→ Pesticide Test (pdf)
→ Heavy Metal Test (pdf)
Batch 250901:
→ Pesticide Test (pdf)
→ Heavy Metal Test (pdf)
How much energy can you expect from your matcha?
Matcha tests also looked at caffeine content. We converted the results to a single serving so we wouldn’t get lost in the sea of numbers.
Harmony: 21,000 mg/kg → ~42 mg caffeine / 2 g
Imperial (25,700 mg/kg) → ~51 mg caffeine / 2 g
Premium (29,400 mg/kg) → ~44 mg caffeine / 1.5 g
Why are we sharing this?
Because quality is not just taste and color. It is also purity, which is not visible. That’s why we document it transparently, so you know what you are drinking. We do it with every new batch. Cheers!
Quick answers to the conclusion
- Do you test regularly? Yes, continuously and for key parameters. The current tests came out great.
- What is “<LOQ”? Result below the limit of quantification of the method. For pesticides, this means that the method does not quantitatively evaluate the substance in the given matrix below this limit.