If you’re exploring Japanese green teas, you might have heard that gyokuro contains more caffeine than other varieties. But is that true? And how does gyokuro compare to other popular Japanese teas like kabusecha or sencha?
Gyokuro is one of Japan’s finest green teas, known for its rich umami flavour and smooth texture. One key factor that sets gyokuro apart is its cultivation method: the tea plants are shaded for around 20 to 30 days before harvest. This shading limits sunlight exposure and reduces photosynthesis, causing the plant to produce more caffeine and theanine to protect itself and stimulate growth. This is why shaded teas like gyokuro and kabusecha tend to have higher caffeine than unshaded teas like sencha.
Additionally, gyokuro is made from the youngest, most tender leaves from the first harvest period of the year. These naturally contain more caffeine than leaves from later on in the year.
Kabusecha is another shaded Japanese green tea, but it is shaded for a shorter period – typically 7 to 10 days before harvest and the shading takes place directly on the tea plants. This shorter, more intense shading means kabusecha contains moderate to high caffeine levels, generally less than gyokuro but more than sencha.
Kabusecha offers a nice balance between the rich, sweet umami of gyokuro and the brighter, grassier notes of sencha. It’s a great choice for those who want a milder shaded tea experience with a moderate caffeine boost.
On average, a brewed cup of gyokuro can contain significantly more caffeine than typical Japanese green teas, roughly:
These numbers vary based on harvest, brewing time, and tea quality.
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