Soba

Raian Hagiwara

Rating78SCORE
WHY IT'S A MESHI MAP PICK
Locals keep coming back. That is the real proof.
地元の人が、通い続ける。それが何よりの証明。
TripAdvisor 4.0, #15 in Saku (out of 612).
TripAdvisor 4.0・佐久市内15位（612店中）。
Tabelog 3.48, 297 reviews (Tabelog score not a criterion; review content is).
食べログ3.48・297件（食べログスコアは判断基準外・口コミ内容重視）。
One-of-a-kind commitment: grandmother's recipe, hand-ground soba, spring water from Asama foothills.
祖母のレシピを継承した独自の手碾きそば・浅間山麓の湧き水使用という唯一無二のこだわり。
Featured in Japan Soba Preservation Society web magazine.
日本蕎麦保存会のウェブマガジンでも特集。
Jalan 4.4 (5 reviews).
じゃらん4.4（5件）。
Established reputation as a hidden gem.
「隠れた名店」として定評あり。
Featured with menu photos on Gurumeraifu in October 2025 (confirms ongoing operation).
2025年10月にぐるめらいふでメニュー写真付き特集記事が掲載（活動継続確認）。
Retty shows regular/repeat customer posts (one mentions 3rd visit).
Rettyに常連・リピーター投稿（3回目の来訪との記述）あり。
No fake review signs.
サクラの兆候なし。
Popular Dishes
Mizumoe Soba (spring-water dipping soba)
水萌えそば（どうづきそば）
Tebiki Soba (hand-ground)
手碾きそば
Mixed Platter
相盛り
What kind of place?
Fake reviews removed

A hidden gem in Iwamuroda, Saku City. The two signature dishes are 'Tebiki Soba' based on the grandmother's recipe, and 'Mizumoe Soba' featuring an unusual dipping sauce made with spring water from the Asama foothills. Only Raian Hagiwara offers both in a mixed platter. TripAdvisor 4.0, ranked 15th in Saku. Tabelog 3.48, 297 reviews. The commitment to natural ingredients and grandmother's traditional technique are authentic.

Reviews praise 'This soba is special,' 'The Mizumoe soba dipping sauce has an unrivalled flavor,' and 'The mixed platter in a quiet setting is wonderful.' Tabelog 3.48, 297 reviews. TripAdvisor 4.0, #15 in Saku. Many repeat visitors.

Business Hours
Mon11:30-15:00,17:00-20:00
TueClosed
Wed – Sun11:30-15:00,17:00-20:00
Regular Holiday：不定休（主にTuesday）
Phone0267-67-6661Call
Access
22-min walk from JR Kitanakakomi Station. Taxi from Saku-daira Station recommended. Reservations recommended for lunch as it gets crowded. Cash only.
2426-1 Minami Nishi no Kubo, Iwamuroda, Saku City, Nagano
English Menu：Not AvailableCredit Card：Not Available
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Links to reservation and restaurant-guide sites include affiliate advertising. If you book through a link, the operator may receive a referral fee — but this never affects which restaurants we list, how they rank, or how they are rated.

Reserve on Hot PepperReserve on GnaviOpen in Google MapsView on TabelogOfficial Website
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Soba

Raian Hagiwara

Rating78SCORE
Popular Dishes
Mizumoe Soba (spring-water dipping soba)
水萌えそば（どうづきそば）
Tebiki Soba (hand-ground)
手碾きそば
Mixed Platter
相盛り
Business Hours
Mon11:30-15:00,17:00-20:00
TueClosed
Wed – Sun11:30-15:00,17:00-20:00
Regular Holiday：不定休（主にTuesday）
Access
22-min walk from JR Kitanakakomi Station. Taxi from Saku-daira Station recommended. Reservations recommended for lunch as it gets crowded. Cash only.
2426-1 Minami Nishi no Kubo, Iwamuroda, Saku City, Nagano
Phone0267-67-6661
English Menu：Not AvailableCredit Card：Not Available
View larger map

Links to reservation and restaurant-guide sites include affiliate advertising. If you book through a link, the operator may receive a referral fee — but this never affects which restaurants we list, how they rank, or how they are rated.

Reserve on Hot PepperReserve on GnaviOpen in Google MapsView on TabelogOfficial Website
WHY IT'S A MESHI MAP PICK
Why this place makes the list
Locals keep coming back. That is the real proof.
地元の人が、通い続ける。それが何よりの証明。
TripAdvisor 4.0, #15 in Saku (out of 612).
TripAdvisor 4.0・佐久市内15位（612店中）。
Tabelog 3.48, 297 reviews (Tabelog score not a criterion; review content is).
食べログ3.48・297件（食べログスコアは判断基準外・口コミ内容重視）。
One-of-a-kind commitment: grandmother's recipe, hand-ground soba, spring water from Asama foothills.
祖母のレシピを継承した独自の手碾きそば・浅間山麓の湧き水使用という唯一無二のこだわり。
Featured in Japan Soba Preservation Society web magazine.
日本蕎麦保存会のウェブマガジンでも特集。
Jalan 4.4 (5 reviews).
じゃらん4.4（5件）。
Established reputation as a hidden gem.
「隠れた名店」として定評あり。
Featured with menu photos on Gurumeraifu in October 2025 (confirms ongoing operation).
2025年10月にぐるめらいふでメニュー写真付き特集記事が掲載（活動継続確認）。
Retty shows regular/repeat customer posts (one mentions 3rd visit).
Rettyに常連・リピーター投稿（3回目の来訪との記述）あり。
No fake review signs.
サクラの兆候なし。
78SCORE
What a score of 78 means
A measure of whether people truly want to return — not hype. Calculated after removing fake reviews.
Real reputation
Fake reviews removed

A hidden gem in Iwamuroda, Saku City. The two signature dishes are 'Tebiki Soba' based on the grandmother's recipe, and 'Mizumoe Soba' featuring an unusual dipping sauce made with spring water from the Asama foothills. Only Raian Hagiwara offers both in a mixed platter. TripAdvisor 4.0, ranked 15th in Saku. Tabelog 3.48, 297 reviews. The commitment to natural ingredients and grandmother's traditional technique are authentic.

Reviews praise 'This soba is special,' 'The Mizumoe soba dipping sauce has an unrivalled flavor,' and 'The mixed platter in a quiet setting is wonderful.' Tabelog 3.48, 297 reviews. TripAdvisor 4.0, #15 in Saku. Many repeat visitors.

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