Hot or cold is a market decision first, a temperature setting second

Route compare

Hot route and cold route, side by side

Decision factors

Questions that decide the peanut route

• What does the market pay for — fragrant everyday oil, or a premium cold-pressed claim with a higher shelf price?
• How clean are the kernels? Cold pressing rewards cleaner, well-graded kernels; hot pressing is more forgiving.
• What hourly output is needed? Hot cycle (30-40 min) is roughly 2-3× more productive than cold (60-90 min) per barrel.
• Is refining planned? Cold-pressed unrefined oil (smoke point ~160°C) is not for high-heat frying without refining.

Do not sell hot-pressed oil under a cold-pressed claim. They are different products with different temperatures, yields, and labels — mislabeling risks brand and compliance problems.

Why it matters

Why the route decision drives everything downstream

It is tempting to treat hot and cold pressing as one machine with a temperature dial, but on a real peanut line they are two different operations. The hot route begins long before the press: kernels are roasted at 160-180°C to develop the fragrant, golden character customers associate with everyday peanut oil, and to drop moisture to 3-5% so the oil releases cleanly. That roasting step sets the hourly rhythm of the whole line, and it pairs naturally with the 300-325 ton press class running a fast 30-40 minute cycle at 80-100°C, returning 40-48% oil with 6-8% residual in the cake. The cold route removes roasting entirely: kernels are pressed at or below 60°C on a stiffer 355-500 ton frame that can absorb the higher mechanical stress of a 60-90 minute cycle without losing pressure stability. Yield drops to 35-42% and residual oil rises to 8-10%, but the payoff is a premium, unrefined product with a delicate flavor and an approximately 160°C smoke point. Because that smoke point is low, cold-pressed oil is positioned for finishing and dressing rather than high-heat frying unless it is later refined. The reason this matters for equipment selection is that the route, not the headline tonnage, decides which press frame, what cycle time, how much filtration, and which packaging line you actually need. A customer who picks a model number first and a route second usually ends up re-sizing the line; a customer who locks the market and route first gets a press and supporting modules that fit on the first quote.

Project boundary

What to confirm before scoping Peanut Hot vs Cold Press Route

Peanut Hot vs Cold Press Route should not be quoted from an equipment name alone. Check feed lots, target oil, post-press handling, and packing rhythm in one scope before deciding which Peanut Oil Press modules stay. Listed on the factory hot-press page — discuss 300/325 first.

When feed condition, moisture, impurities, batch weight, and product position are unclear, press tonnage and filter area become guesswork. Factory systems share 60 MPa and 2.2 kW motors; hot pure press is 30–40 min/barrel and cold pure press is ~2 h/barrel — cycle time matters more than brochure tonnage.

• Confirm whether feed is whole seed, kernels, pretreated material, or an existing semi-finished stream.
• Confirm whether the target is crude oil, filtered oil, bottled oil, drum ingredient oil, or a refining handoff.
• Hot cycle reference: pure press 30-40 min/barrel, ~1.5 h for 2 barrels with loading; cold pure press ~2 h/barrel, ~4.5 h for 2 barrels.
• Confirm batch rhythm, labor, changeover, retained samples, power (often 380V/50Hz/3ph), and site install conditions.

Factory model check

Match hot / cold models to factory hard data

Pin models to published factory specs before tonnage talk.

Hot 300/325: 300–325 ton, 60 MPa system, standard barrel Ø390×800 mm / max 100 kg, pure press 30–40 min/barrel, ~1.5 h for 2 barrels with loading, 2.2 kW motor. Cold 355/400/426/480/500: 370–630 ton, integrated frame, same 100 kg standard barrel, pure press ~2 h/barrel, ~4.5 h for 2 barrels with loading; optional Ø300 high-pressure barrel max 60 kg. Residual oil target ~≤5% (peanut hot often 6–8% measured).

• Standard barrel Ø390×800 mm, max ~100 kg crushed feed; optional Ø300 high-pressure barrel max ~60 kg.
• Cylinder material 27SiMn; cold frames are integrated molded steel; hot frames are typically H-type channel steel.
• Listed on the factory hot-press page — discuss 300/325 first.

Equipment check

project scope needs to land in equipment interfaces

Once the route is clear, write the interfaces: how preparation feeds the press, how oil leaves the press, how filtration connects to tanks, and how packing receives finished oil.