PRODUCTION GUIDE

OIL PRESS RAW MATERIALS GUIDE

Best seeds and nuts for extraction

Haonuo Engineering Team
Engineering Team · Haonuo Machinery
July 17, 2026

Introduction

Selecting the right raw material is crucial for successful oil production. Different seeds and nuts have varying oil content, processing requirements, and market values.

Choosing the right raw material can significantly impact production efficiency and product quality. Understanding each material's characteristics is key to maximizing yield.

Understanding Raw Material Characteristics

Key Characteristics

Oil Content

Higher oil content = higher yield per kg

Moisture Content

Critical for optimal extraction (too dry = reduced yield, too wet = emulsification)

Seed Size & Shape

Affects grinding efficiency

Hardness

Determines required press pressure

Market Value

Premium oil = higher profit margins

Common Oil Materials

Sesame Seeds

Hot Cold

Oil Content

45-55%

Moisture

5-6% hot, 7-8% cold

Dehulling

98%+

Yield

Hot 48-54%, Cold 42-48%

Roasting: 160-180°C, 25-30 min
Recommended Models:

Peanuts

Hot Cold

Oil Content

45-50%

Moisture

5-7% hot

Dehulling

95%+

Yield

Hot 45-50%, Cold 38-42%

Roasting: 165-185°C, 30-35 min
Recommended Models:

Rapeseeds

Hot Cold

Oil Content

40-45%

Moisture

6-8% hot

Dehulling

85-90%

Yield

Hot 38-42%, Cold 32-36%

Roasting: 150-170°C, 20-25 min
Recommended Models:

Walnuts

Cold

Oil Content

60-70%

Moisture

7-9% cold

Dehulling

Complete removal

Yield

Cold 45-50%

Roasting: No roasting
Recommended Models:

Almonds

Cold

Oil Content

50-60%

Moisture

7-9% cold

Dehulling

Complete removal

Yield

Cold 42-48%

Roasting: No roasting
Recommended Models:

Coconut

Hot Cold

Oil Content

60-70%

Moisture

6-8%

Dehulling

Remove shell & skin

Yield

Hot 60-65%, Cold 55-60%

Roasting: N/A
Recommended Models:

Soybeans

Hot Cold

Oil Content

18-22%

Moisture

7-9% hot

Dehulling

90%+

Yield

Hot 18-22%, Cold 15-18%

Roasting: 140-160°C, 25-30 min
Recommended Models:

Tea Seeds

Hot

Oil Content

30-40%

Moisture

5-7% hot

Dehulling

Remove shell

Yield

Hot 28-35%

Roasting: 150-170°C, 25-30 min
Recommended Models:

Material Preparation Best Practices

1

Seed Cleaning

Remove debris (stones, metal, dust)

Separate damaged and broken seeds

Target: < 0.5% debris

2

Moisture Adjustment

Too dry: Add water with spray humidifier

Too wet: Dry with hot air dryer or sun drying

3

Roasting (Hot Press)

Sesame: 160-180°C, 25-30 min

Peanut: 165-185°C, 30-35 min

Rapeseed: 150-170°C, 20-25 min

4

Grinding

Optimal particle size: 2-4 mm for most materials

3-5 mm for nuts

Storage and Handling

Storage Conditions

Temperature

15-25°C

Humidity

< 65% relative humidity

Duration

< 6 months for best quality

Pest Control

Use rodent-proof containers, regular inspection

Conclusion

Choosing the right raw material is crucial for successful oil production. For personalized recommendations on what materials to process and how to optimize your production, contact the Haonuo technical team.

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