https://shmuker.oss-cn-hangzhou.aliyuncs.com/data/oss/65b068c3c2e9735675cac322/65b46cb67cfeb5177346777c/20240426173741/未标题-1_画板%201.png

Cold Press vs. Hot Press: How Precision Temperature Control in Screw Oil Expellers Preserves Nutrient Integrity
2025-08-31
Penguin Group
Knowledge
As demand for high-quality, minimally processed oils rises globally, understanding the impact of temperature control in oil extraction is critical. This article explores the scientific differences between cold and hot pressing, highlighting how advanced screw oil expellers—like those from Penguin Group—maintain optimal temperatures to preserve essential nutrients, flavors, and bioactive compounds. With real-world applications in nut oils, olive oil, and cosmetic-grade plant oils, these intelligent machines deliver both efficiency and nutritional integrity, making them ideal for B2B producers seeking sustainable, high-performance solutions.
https://shmuker.oss-cn-hangzhou.aliyuncs.com/data/oss/65b068c3c2e9735675cac322/668263a4df9f6e7a1281439c/20240709145625/780.jpg

Cold Press vs. Hot Press: How Temperature Control in Screw Oil Expellers Preserves Nutrients

As global demand for clean-label, nutrient-rich oils surges—driven by health-conscious consumers and premium food & cosmetics markets—B2B buyers are increasingly prioritizing processing technologies that don’t compromise quality. The difference between cold-press and hot-press extraction isn’t just technical—it’s a strategic choice impacting yield, shelf life, and market positioning.

The Science Behind the Difference

In cold pressing, temperatures stay below 40°C (104°F), preserving delicate compounds like polyphenols, vitamin E, and essential fatty acids. A study from the Journal of Food Engineering found that cold-pressed olive oil retains up to 30% more antioxidants than its hot-pressed counterpart. In contrast, hot pressing (typically 70–90°C / 158–194°F) boosts oil yield by 15–20% but risks degrading heat-sensitive nutrients.

That’s where Penguin Group's multi-functional screw oil expeller stands out—not just as an extractor, but as a precision tool designed for both efficiency and integrity.

Screw oil expeller with temperature control panel showing real-time monitoring interface

Smart Thermal Management = Higher Quality + Better Yield

Process Type Avg. Oil Yield Nutrient Retention Best For
Cold Press ~65% High (Polyphenols, Omega-3s) Premium Oils, Cosmetics
Hot Press ~80% Moderate Industrial Edible Oils
Penguin Screw Expeller 72–85% (adjustable) Up to 95% retention at low temps Flexible Production
“We switched to Penguin’s smart thermal system last year—and saw a 25% increase in customer satisfaction scores for our organic flaxseed oil. The flavor profile is cleaner, and we no longer have to add synthetic stabilizers.” — Maria Chen, Procurement Manager, GreenLife Naturals (USA)
Comparison chart showing temperature curve during cold press vs hot press cycles in a screw expeller

The real advantage? You’re not choosing between high output or purity—you get both. Our patented dual-mode heating system allows operators to switch seamlessly between cold and hot modes without downtime. Whether you're producing cold-pressed walnut oil for gourmet kitchens or soybean oil for biodiesel plants, the same machine adapts.

And it doesn’t stop there. With a compact footprint and intuitive touchscreen controls, even small-scale manufacturers can integrate this into existing lines within 48 hours. One client in Morocco reported a 30% reduction in energy costs after switching from older models—a win for sustainability and ROI.

Factory floor image showing Penguin screw expeller in operation alongside trained staff

For B2B buyers who value consistency, compliance, and competitive differentiation—this is how you future-proof your production.

See How Smart Temp Control Boosts Your Oil Quality & Profit Margins

Recommended Products
Hot Products
Contact us
Contact us
https://shmuker.oss-cn-hangzhou.aliyuncs.com/tmp/temporary/60ec5bd7f8d5a86c84ef79f2/60ec5bdcf8d5a86c84ef7a9a/thumb-prev.png