Walnut quote guide: gourmet spec from kernel grade to gift-set
Walnut equipment quote moves fast when six fields are filled: 1) kernel grade (USDA Light Halves / Pieces, oil 60-70%, moisture 4-6%, shell <2%, lot traceability), 2) press temperature limit (≤40°C premium / ≤50°C mainstream), 3) press class + cadence (200-355 ton, batch 80-100 kg, 4-8 cycles/shift), 4) filtration (1-5 μm bag for gourmet, 0.22 μm sterile for cosmetic), 5) packaging (100-250 ml dark amber/violet glass + N₂ flush + gift-set carton), 6) compliance (organic NOP/EU 2018/848, kosher, halal, allergen labeling — walnut is a major tree-nut allergen).
Kernel and press spec
USDA Light Halves / Pieces, oil 60-70%, moisture 4-6%, shell <2%. Press ≤40°C (premium) / ≤50°C (mainstream), 200-355 ton, 80-100 kg/barrel, 60-90 min/cycle, yield 50-58%.
Filter and packaging
200-300 mesh + 1-5 μm bag → Lovibond Y 5-15 (gourmet) or 0.22 μm sterile (cosmetic). 100-250 ml dark amber/violet glass + N₂ + cold storage ≤15°C + gift-set carton.
Compliance and allergen
Organic (USDA NOP / EU 2018/848), kosher (OU/OK), halal, FDA Food Facility. Walnut = major tree-nut allergen (must be declared per FALCPA US, EU 1169/2011). Dedicated walnut line preferred over multi-nut.
Six required fields
What turns an inquiry into a fast walnut proposal
- Kernel: USDA grade (Light Halves / Pieces / Amber), oil content 60-70%, moisture 4-6%, shell residue %, broken-kernel %, lot traceability.
- Press temperature: ≤40°C premium / ≤50°C mainstream. Yield target 50-58%, residual cake 8-12%.
- Press class + cadence: 200 ton (<500 kg seed/month) or 355 ton (500-3000 kg/month). 4-8 cycles/shift.
- Filter: 1-5 μm bag for gourmet retail, 0.22 μm sterile for cosmetic-grade.
- Packaging: 100-250 ml dark glass + N₂ flush + gift-set carton (rigid + foam + matte print)? Cold logistics?
- Compliance: organic, kosher, halal, FDA, allergen labeling, dedicated walnut line vs multi-nut shared.
Site data
Attachments that prevent rework
- Workshop drawing: m² × ceiling, fill room (temperature-controlled 18-22°C, low UV), cold storage location.
- Utility: 380V/50Hz available kW (40-80 kW for 200-355 ton press), water for jacket cooling, N₂ supply.
- Existing equipment: sheller (if pods on site), grader, press, filter, tank, filling line — capacity and condition.
- Kernel COA: oil content, moisture, FFA, peroxide, USDA grade, harvest date, lot number.
- Brand positioning: gourmet retail, gift market, ingredient supply, cosmetic — drives temp limit, filter depth, and packaging investment.
Questions to confirm next
What is the minimum data set for a same-week walnut quote?
Should walnut share a line with other nuts?
Keep the finish-quality path moving
These next topics protect low-temp control, filtration, and packaging fit
Ready to size a line for your oilseed?
Share kernel grade, low-temperature expectations, filtration cleanliness, and packaging direction. We size the line around a premium small-batch project, not a loose machine quote.