Raised on Fukaya-grown satsumaimo sweet potato — a Saitama brand pork where sweetness and rich depth melt together in perfect harmony.
Saitama-kensan Imobuta (Saitama Prefecture Sweet Potato Pork), born in Fukaya City, Saitama Prefecture, is a unique brand pork that incorporates locally-grown sweet potato into its feed. Fukaya City is nationally known as a scallion production area, but the initiative of utilizing sweet potatoes grown on the same rich land as pig feed creates a distinctly outstanding meat quality. The feed combines Fukaya City-grown feed-use sweet potato with compound feed. Sweet potato is a plant-based ingredient richly containing sugar and starch — when given to pigs, the fat melting point lowers, and an elegant fat sweetness that gently melts from the moment it enters the mouth is born. Furthermore, glutamic acid and aspartic acid — umami components — increase, with a deep flavor spreading with every chew. The breed is a three-breed cross — Large Yorkshire × Landrace sows with Duroc male — known for the richness of lean umami and solid build. The finely-grained, soft meat quality and mellow fat balance shine in a wide range of preparations including tonkatsu, ginger pork stir-fry, and shabu-shabu. Shipping is at 180 days of age, approximately 115 kg, slaughtered at the hygienically excellent Honjo Meat Center. The managing body, Imobuta Co., Ltd., obtained Farm HACCP in 2019 — thorough safety rearing environment and quality management in place. The brand trademark was registered in 2008, with brand standards also established the same year — a local brand with history. Please do try Imobuta — approximately 5,000 head shipped annually — at your table at least once.
Basic Information
- Name
Saitama-kensan Imobuta - Production Area
Designated farms in Saitama Prefecture - Management Body
N/A - Breed / Crossbreeding
Female (Large White × Landrace) × Male: Duroc (three-breed cross) - Meat Characteristics
Sweet potato in feed lowers fat melting point for an elegant, melt-in-the-mouth sweetness. Rich in umami compounds (glutamic acid, aspartic acid). Fine-grained, tender lean meat balanced with well-marbled fat. - Feed Characteristics
Fukaya-grown feed sweet potatoes combined with standard compound feed. Plant-based primary formulation designed to enhance natural pork umami and fat sweetness. - Shipping Age
180 days - Annual Production
Approx. 5,000 head annually - Signature Dish
N/A - Certifications
Farm HACCP certified: June 28, 2019
Trademark registration: April 25, 2008
Brand regulations established: 2008 - Related URLs
Imobuta Official Site - Source
Branded Pork Guidebook 2026, p.88
霧島おいも豚の里 公式サイト（さつまいも飼料の肉質効果）
日本養豚協会資料（三元交配豚の品種特性）
いもぶた 公式サイト
Last updated
6/21/2026