NFU analysis of HMRC data quantifies what British farmers have been saying for years: Brexit didn't just add friction to EU food trade — it severed entire product lines. Eggs and egg products are down 74% on full-year data from 2019 to 2025. Sugar exports collapsed 70%. Poultry fell 53% in the first seven months alone. Horticultural exports, including Scottish seed potatoes worth £11m annually to European buyers, dropped more than 50% after trade negotiators failed to agree equivalent standards. The mechanism is bureaucratic, not tariff-based. Every variation of an egg product — fresh, dried, steamed, shelled, with added water or sugar — requires its own customs code. Paper pulp in egg cartons needs separate health certification. Scottish salmon faces a 100% rate of document checks at the border, costing an estimated £100m in lost exports. British burgers and fresh meat products cannot be sold in the EU at all. Shellfish from Wales are banned. As Andy Burnham told parliament, entire truckloads of plants or fresh product can be destroyed because of a single missing stamp. The EU remains Britain's dominant agri-food market, accounting for 68% of exports last year. That concentration makes the friction costs catastrophic. These are not marginal trade flows being disrupted — this is the primary export channel for UK agriculture being strangled by paperwork that didn't exist before January 2021. A deal to ease sanitary and phytosanitary (SPS) checks was largely agreed in May, with changes expected next summer, but key details remain unresolved. The NFU wants transition arrangements for crops grown with fungicides or precision breeding techniques not yet approved in the EU, so that this autumn's and winter's harvests can use the new export freedoms when they arrive. Without transition provisions, farmers face another lost season. Burnham is now reconsidering Labour's red lines on EU membership under pressure to repair what economists estimate is up to £240bn in cumulative economic damage. The upcoming UK-EU reset talks are expected to focus on removing many SPS checks, but the structural problem is deeper than any single negotiation round. Five years of lost market share, broken supply relationships, and competitor entrenchment cannot be reversed by reducing paperwork alone. The extraction pattern is clear: the political class that negotiated the Brexit trade deal distributed the costs almost entirely to producers and rural economies while capturing none of the supposed sovereignty benefits in agricultural trade. Scottish seed potato growers, Welsh shellfish harvesters, and English egg producers are paying the bill for a trade agreement that failed to secure basic equivalence standards. The 20-year question is whether UK agriculture permanently loses its EU market position. Competitors in Ireland, the Netherlands, and France have been filling the gap since 2021. Even if SPS alignment is eventually achieved, recapturing market share from established alternative suppliers is vastly harder than maintaining it was.