What it actually is

Mercadona matcha (sold under the Hacendado own brand) is culinary grade powdered green tea, produced mainly in China. Mercadona is Spain’s largest supermarket chain and this pouch is the country’s best selling matcha, which makes it a useful stand-in for supermarket matcha anywhere. The price alone (€3 to €5 for 70 to 100 g) rules out first-harvest Uji tencha: a matcha in that category would cost 30 to 60 times more at origin.

That does not make it a bad product. It is what it is: ground green tea, useful in baking, in smoothies and in a handful of dishes where the subtlety of a ceremonial matcha would be lost anyway.

Sensory analysis

Colour (5/10)

Olive green, slightly yellowed. None of the bright jade of a ceremonial. Consistent with late-harvest leaf, or leaf that was not shaded enough.

Aroma (4/10)

Hay and dry grass rather than fresh tea. None of the sea notes or the pea of a ceremonial.

Foam (4/10)

Thin foam that collapses in under 15 seconds. The coarse particle size does not hold air well.

Umami (3/10)

Marked bitterness from the first sip. Umami is absent or very faint. Not one for a straight usucha.

What it is good for, and what it is not

UseDoes it work?
Usucha (plain tea)❌ No. Bitter and unsatisfying.
Koicha❌ No.
Matcha latte with sugar⚠️ Works. The sugar covers the bitterness.
Matcha sponge cake✅ Yes. The bitterness blends in.
Green smoothie✅ Yes. The green colour helps the look.
Matcha ice cream✅ Yes. Fat and sugar make up for it.

Conclusion

Mercadona matcha is not ceremonial matcha. It does not claim to be, and it should not be judged on that ground. It is a cheap cooking ingredient with a confusing name. If what you want is the experience of real matcha, the gap between this and a first-harvest ceremonial is so wide that they are different products. If what you want is green colour for baking, it does the job.