Japan Potato Delay Costs US Growers $750M

No progress in Japan market access after US-Japan summit on October 28, 2025. Fresh market entry omitted from trade pact. US fresh potato prices fell 0.8% versus previous week in key Idaho region due to weak export outlook. National Potato Council publicly protested the result. No new storage or transportation contracts included fresh potatoes for Japan this week.

US potato supply remains high. Farmers kept acreage stable, expecting new export opportunities. With Japan’s market still closed, surplus potatoes crowd domestic markets. This pushes prices lower in key states like Idaho and Washington. Input costs—especially fertilizer and fuel—rose 12% over last year, squeezing profit margins further. No extreme weather hit potato-growing regions this month; harvest yields remain within historic averages. However, unsold stocks are straining cold storage capacity in the Pacific Northwest. Processed potatoes find overseas markets, but fresh stocks face bottlenecks. Aging storage may raise risk of spoilage if export barriers continue.

Japan’s fresh table potato demand remains unmet by US exporters. Instead, Japanese buyers source locally and from approved suppliers. Domestic US retail demand is steady but cannot absorb export-sized surplus. Some processors buy more fresh potatoes at lower prices, benefitting from oversupply. Exporters lose optimism, reporting shorter buyer contracts and softer bids from trading houses this week. No new government procurement program appears for October 2025, so direct demand uplift is unlikely near-term.

lowest impact: Los Angeles Terminal Market, CA, -1.2% price, Oversupply from Pacific NW arrivals | highest impact: Burley, Idaho Mandi, -2.1% price, Export blockage deepens local surplus | stable: Grand Forks, North Dakota, 0.0% price, Steady local demand, low export exposure

Japan continues to block US fresh potatoes with non-tariff barriers, citing phytosanitary concerns. US officials and the National Potato Council call this unjustified. The new October 2025 trade deal ignored the potato issue, despite high-level talks and recent letters from US Senators. Input tariffs and lack of federal emergency subsidies for specialty crop farmers increase risk. US Chief Agriculture Negotiator Julie Callahan labeled Japan’s move as a non-tariff barrier, potentially opening further challenges at the WTO. No new grants, subsidies or relief payments were announced for US potato farmers as of November 2025. Application windows remain open for existing storage upgrade programs via USDA Rural Development, but funding is limited and competitive.