Peanut oil press FAQ: route, yield, aflatoxin, and quote data
Peanut hard data: kernel oil 44-56%, moisture 5-8%, shell 30-40%. Hot route 160-180°C roast + 80-100°C press → yield 40-48%. Cold route ≤60°C → yield 35-42%. Aflatoxin B1 <20 μg/kg (EU) / <20 ppb (US FDA). Cake protein 45-50%.
Peanut press FAQ with hard data: kernel oil 44-56%, hot roast 160-180°C, cold ≤60°C, yield 40-48% hot / 35-42% cold, residual oil 6-10%, aflatoxin B1 <20 μg/kg, 100 kg/barrel, 200-300 mesh filter.
Feed and preparation
Pods (shell 30-40%) or shelled kernels? Moisture 5-8%? Damaged/moldy kernels removed (aflatoxin risk)? 1000-kernel weight 400-700 g.
Route data
Hot: roast 160-180°C → press 80-100°C → 300-325 ton → yield 40-48%. Cold: ≤60°C → 355-500 ton → yield 35-42%, premium positioning.
Scope boundary
Press-only or full line? Shelling, roasting, 200-300 mesh filtration, settling tank, cake pulverizer (cake 45-50% protein), nitrogen-flushed bottling.
Core decisions
Three decisions that drive every peanut quote
Peanut hydraulic pressing process clip
Use this clip to understand hot pressing, barrel loading, hydraulic pressing, and oil discharge rhythm.
Confirm crude oil and cake routing together
Filtration, storage, and cake collection after pressing directly affect layout and quotation scope.
Pods vs kernels
Pods need a shelling stage (drum sheller + grading screen, target shell residue <2%). Shelled kernels skip that stage. Mixing them on one line without grading destabilizes the press.
Hot vs cold route
Hot route: roast 160-180°C, press at 80-100°C, yield 40-48%, smoke point 230°C refined. Cold route: ≤60°C end-to-end, yield 35-42%, FFA <0.5%, smoke point 160°C unrefined.
Press class by route
Hot peanut: 300-325 ton, 14 partitions, 100 kg/barrel (390 × 800 mm), 30-45 min/cycle. Cold premium: 355-500 ton, 60-90 min/cycle, residual 8-10% (vs 6-8% hot).
Hard data
Numbers a peanut inquiry should already know
- Oil yield: 40-48% hot, 35-42% cold (kernel oil content 44-56%). Residual cake oil 6-8% hot, 8-10% cold.
- Cake protein: 45-50%. Defatted meal sells as feed (poultry/aquaculture) or food-grade peanut flour.
- Aflatoxin B1 limit: <20 μg/kg (EU 1881/2006), <20 ppb (US FDA). Pre-press kernel inspection + UV sorting + lab test per batch.
- Standard barrel: 390 × 800 mm, ~100 kg kernel load. Model 325 uses 14 partitions to hold pressure across each cake during the 30-45 min cycle.
- Smoke point: 230°C refined peanut oil (high-heat frying), 160°C unrefined cold-pressed (salad/finishing).
Quote inputs
Send these to skip the first three rounds of clarification
- Feed: pods or kernels, kernel grade, moisture %, aflatoxin test result if available.
- Route: hot (160-180°C roast) or cold (≤60°C), with target yield and final smoke-point grade.
- Capacity: kg/shift or barrels/day. One model 325 = ~2 barrels per 1.5 h including load/unload.
- Existing equipment: roaster (wok / drum), settling tank, plate-frame filter — keep, replace, or extend?
- Cake plan: feed grade, food-grade flour (defatting + grinding), or local resale.
Questions to confirm next
Hot or cold for peanut oil?
What aflatoxin limit applies and how is it controlled?
What yield and residual oil are realistic?
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Share peanut feed form, shelling status, target output, roasting method, filtration requirement, and cake destination so the scope can be narrowed to the right machine class and project boundary faster.