🍪 Recipe · Sweet📍 Pastry•⏱ 4 min

Sobacha, the roasted field herbal tea

蕎麦茶 · The roasted buckwheat infusion that awakens without caffeine.

Iwate Prefecture· Caffeine-free· 4 min read

Sobacha is not tea. Nor is it strictly speaking an herbal tea. It is an infusion of roasted buckwheat kernels. No caffeine, no tannins, just the toasted warmth of a grain reminiscent of sourdough bread. In Japan, it is served hot in winter, iced in summer.

Buckwheat (soba) grows in the mountainous regions of the north. Iwate, Nagano, Hokkaido. Its white blossoms cover the fields in September, and it is harvested in October. The sorted and crushed grains are used to make soba noodles as well as sobacha.

For sobacha, the grains are not ground but simply hulled, then roasted at 180°C for 20 minutes. They take on an amber color, release a hazelnut note, and become slightly bitter on the surface — just like a bread crust.

The origin

Iwate has cultivated buckwheat since the Heian era (12th century). The nitrogen-poor volcanic soils, harsh winters, and mountainous slopes: all these factors limit yields but concentrate aromas. An Iwate buckwheat grain is denser and more fragrant than a European grain.

Roasting is an art. Too short, the grain remains raw. Too long, it becomes bitter. Artisans roast in rotary drums, listen to the crackling of the grains, and adjust the temperature by feel. Each batch is tasted before packaging.

The use

Put 1 tablespoon of grains into 250 ml of simmering water (90°C). Infuse for 5 minutes. Filter or leave the grains at the bottom — they will continue to infuse. Taste of roasted hazelnut, bread, oven bottom.

For a cold summer version: cold infuse for 8 hours in a carafe in the fridge. Iced sobacha is milder, sweeter, almost like barley tea. Serve with a lemon zest.