Name: Ume Kombucha (梅昆布茶, plum-kelp tea)
Prep time: 10 min
Cook time: 45 min
Total time: 55 min
Yield: 4 small cups
Cuisine: Japanese
Ingredients: 1 piece konbu (dried kelp), about 8g, preferably ma-konbu, Rishiri, or Hidaka; 2 large umeboshi (salt-pickled ume), about 30g total, preferably not honey-sweetened; 1/4 teaspoon fine sea salt, optional; 2 1/2 cups water, heated to 175°F/80°C

Question 1

How do you make ume kombucha from umeboshi and konbu?

Accepted Answer

Make ume kombucha by drying 2 large pitted umeboshi at 200F for 35 to 45 minutes, crisping 8g konbu for the last 5 minutes, then grinding both into a coarse tea base. Steep 1 level teaspoon, about 2g, per 150ml cup in 175F water for 2 to 3 minutes.

Question 2

What temperature should the water be for ume kombucha?

Accepted Answer

Use 175F or 80C water for ume kombucha. Slightly cooler water draws clean savory flavor from cut konbu and keeps dried umeboshi bright and tart. A rolling boil pulls bitterness and slippery roughness from the kelp, making the finished Japanese plum kelp tea taste heavy.

Question 3

Why do you dry umeboshi before making plum kelp tea?

Accepted Answer

Dry umeboshi before making plum kelp tea so the pickled ume flesh breaks into sour-salty flecks instead of sinking in clumps. Fresh umeboshi clouds the cup and smears during grinding. Dried umeboshi seasons the 175F water evenly while keeping the brewed tea clear-tasting.

Question 4

Can I use honey umeboshi for ume kombucha?

Accepted Answer

Use salt-pickled umeboshi, not honey umeboshi, for ume kombucha. This Japanese kelp tea depends on sourness and salt to balance the savory konbu. Honey-sweetened umeboshi makes the cup taste sweet and muted instead of clear, briny, tart, and useful for rice or ochazuke.

Question 5

What can I use instead of a kyusu for ume kombucha?

Accepted Answer

Use a small heatproof pitcher instead of a kyusu for ume kombucha. Put 1 level teaspoon of coarse umeboshi-konbu tea base per 150ml cup into the warmed pitcher, add 175F water, stir once, steep for 2 to 3 minutes, and strain into yunomi or small tea cups.

Question 6

How long does homemade ume kombucha base keep?

Accepted Answer

Homemade ume kombucha base keeps for 2 weeks in an airtight jar in the refrigerator. Cold storage matters because dried umeboshi still carries a little moisture. Brewed ume kombucha tastes best freshly made; for rice, ochazuke, or quick pickles, brew it double strength, cool it, and use it the same day.

Ingredient	Quantity
konbu (dried kelp)wiped lightly, cut small	1 piece (about 8g)
umeboshi (salt-pickled ume)pitted, flesh dried and chopped	2 large (about 30g total)
fine sea salt (optional)	1/4 teaspoon

Culinary Explorer

Ume Kombucha (梅昆布茶, plum-kelp tea)

Ingredients

konbu (dried kelp)

umeboshi (salt-pickled ume)

fine sea salt (optional)

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