Carrot Strip Belt Dryer in Netherlands

From the belt dryer table, the DHG-400 (electrically heated) was selected. Why this model?

• Low temperature: 55-60°C operating range – preserves natural color and flavor
• Gentle airflow: No high-velocity air that can damage delicate strips
• 5-layer design: Extended drying time at low temperature
• Uniform drying: Consistent moisture throughout each strip
• Compact size: 13 m² drying area – fits their small facility

Femke chose the electric model because their facility had no steam boiler. The DHG-400 runs on electricity only.

What He's Drying – Fresh Carrot Strips for Small Pets

The Netherlands is a major carrot producer. Femke's company sources:

• Fresh carrots (local – from South Holland farms): 100% – single ingredient treats
• No additives: No sugar, no preservatives, no artificial colors

The carrot processing:

1. Fresh carrots are washed and peeled
2. Cut into strips: 5-8mm wide, 50-100mm long, 3-4mm thick
3. Raw moisture: 85-90%
4. Target final moisture: 10-12% for shelf stability

The challenge is removing 75-80% of the water without damaging the product.

Installation – Gentle Drying for Delicate Vegetables

The DHG-400 carrot strip belt dryer arrived at the Port of Rotterdam – Europe's largest port.

Shipping time from Qingdao to Rotterdam is about 30-35 days. The machine was packed in a 20-foot container with:

• DHG-400 dryer main unit (40kW heating + fans)
• 5-layer mesh belt conveyor system (0.8m wide)
• Control panel with PLC
• Spare belts (one set – fine mesh for small strips)
• Installation manual and electrical diagram in Dutch

Customs clearance in Rotterdam took about 3 days. Total landed cost was about 20% higher than the FOB price.

Installation took two weeks. Femke's team prepared a concrete foundation – the DHG-400 is about 6 meters long. They poured a 150mm reinforced slab.

The electrical hookup required 400V, 50Hz three-phase (Dutch standard). The 40kW heater required a 100-amp breaker.

The first test run was with fresh carrot strips at 88% moisture. The strips were spread on the belt (single layer, not touching). Belt speed was set to 35 minutes per layer – total drying time 175 minutes across 5 layers. Air temperature: 55°C. Output moisture: 11%. Color: Bright orange. Flavor: Sweet, natural. Perfect.

Performance – Natural Color Preserved

After six months of operation, Femke documented the following results:

Before (hot air dryer – 120°C):

• Drying temperature: 120°C
• Color: Dark brown, unappealing
• Flavor: Bitter, burnt taste
• Vitamin retention: 45-50% (lab tested)
• Customer complaints: 8-10 per month about "treats turning brown"
• Rejection by pets: 30-40% of product returned

After (DHG-400 belt dryer – 55°C):

• Drying temperature: 55°C
• Color: Bright orange, natural
• Flavor: Sweet, fresh carrot taste
• Vitamin retention: 85-90% (40% improvement)
• Customer complaints: Zero in six months
• Pet acceptance: 95%+ (small pets love them)

Production output:

• Input moisture: 85-90%
• Output moisture: 10-12%
• Throughput: 0.3 tons/hour of dried strips
• Daily output (16 hours): 4.8 tons
• Annual output: 1,500 tons

Quality improvements:

• Color retention: 90% preserved (vs 30% in hot air dryer)
• Vitamin A retention: 88% (vs 48%)
• Natural sugar retention: 92% (vs 55%)
• Customer feedback: "Best carrot treats we've ever bought"

Customer Feedback – Femke's Experience

Here's what Femke said after six months (paraphrased from a conversation, translated from Dutch):

"Our hot air dryer was destroying the carrots. High temperature turned them brown and bitter. Small pets wouldn't eat them. Customers complained. We were losing money.

The DHG-400 changed that. Low temperature (55°C) preserves the natural color and flavor. The carrot strips come out bright orange and sweet. Small pets love them. Our customers love them.

The 5-layer belt gives us 175 minutes of gentle drying at low temperature. No scorching, no browning. The uniform airflow preserves the shape.

A few operational notes: The strips need to be spread in a single layer – no stacking. If they overlap, they stick together. The belt speed is critical – too fast and they're under-dried, too slow and they're over-dried. We check moisture every hour. The belts need cleaning daily – carrot residue builds up.

Would I recommend this machine? Yes. For any vegetable drying application, low-temperature belt drying is essential for preserving natural color and flavor. The DHG-400 paid for itself in four months."

Why Low Temperature for Carrot Strips

Carrots have specific drying requirements. Here's why 55°C is ideal:

Color preservation: Carotenoids (beta-carotene) degrade above 70°C. At 55°C, 90% of color is preserved. At 120°C, only 30% remains.

Flavor preservation: Natural sugars caramelize above 80°C, creating a bitter taste. At 55°C, sugars remain sweet.

Nutrient retention: Vitamin A (from beta-carotene) is heat-sensitive. Low-temperature drying preserves 85-90% of vitamins.

Shape retention: High-temperature drying causes rapid shrinkage and warping. Low-temperature drying allows slow, uniform moisture removal.

Femke's lab results:

The 5-Layer Design – Gentle and Uniform

The DHG-400 carrot strip belt dryer's 5-layer design allows extended drying at low temperature:

1. Layer 1: 55°C – gentle surface drying
2. Layer 2: 55°C – continued drying
3. Layer 3: 55°C – moisture migration
4. Layer 4: 55°C – final drying
5. Layer 5: 55°C – finishing to 10-12% moisture

Constant low temperature prevents color degradation. Extended time (175 minutes) allows thorough drying without high heat.

Single-Layer Drying – Preventing Sticking

Carrot strips cannot be stacked during drying. Femke's procedure:

• Layer thickness: Single strip (3-4mm)
• Spacing: 5-10mm between strips
• Reason: Prevents sticking and ensures uniform drying

The DHG-400's belt width (0.8m) allows Femke to dry about 2,000 strips per hour.

Pre-Treatment – Blanching

Before drying, Femke blanches the carrot strips in steam for 2-3 minutes. Blanching:

• Inactivates enzymes that cause browning
• Softens the strips for uniform drying
• Reduces drying time by 10-15%

The blanching system cost €12,000 (purchased separately) – well worth the investment.

Shipping – Qingdao to Rotterdam

The DHG-400 shipped from Qingdao to Port of Rotterdam, Netherlands.

Shipping time from Qingdao to Rotterdam is about 30-35 days. The route goes through the South China Sea, past Singapore, across the Indian Ocean, through the Suez Canal, and across the Mediterranean to Northern Europe.

The carrot strip belt dryer was packed in a 20-foot container. Customs clearance in Rotterdam took about 3 days. Total landed cost was about 20% higher than the FOB price.

The truck transport from Rotterdam to South Holland was short – about 30km, roughly 30 minutes.

What Femke Learned – Lessons for Other Vegetable Dryers

1. 55°C is the ideal temperature for carrots. Higher temperatures cause browning and bitterness. Lower temperatures take too long.
2. Single-layer drying is essential. Stacking causes sticking and uneven drying. Femke's operator spreads strips manually.
3. Blanching improves color retention. Steaming for 2-3 minutes inactivates browning enzymes. Worth the extra step.
4. Monitor moisture hourly. Carrot moisture varies by season. Femke's team checks moisture every hour and adjusts belt speed.
5. Clean belts daily. Carrot residue builds up quickly. Femke's team uses hot water and brushes every evening. Takes 30 minutes.

What RICHI Provided Beyond the Machine

• Dutch documentation: The manual and electrical diagram were provided in Dutch.
• Temperature guidance: RICHI provided recommendations for low-temperature vegetable drying.
• Blanching advice: RICHI recommended blanching before drying for color retention.
• Spare parts kit: RICHI recommended a spare parts kit based on Femke's volume – including belts, heater elements, and sensors.
• Remote support: When Femke had questions about belt speed adjustment, a RICHI technician walked her through it via video call.

Is a Carrot Strip Belt Dryer Right for Your Operation?

For a vegetable drying operation producing natural pet treats, low-temperature belt drying is essential.

Consider the DHG-400 if:

• Your target drying temperature is 50-60°C
• Your capacity requirement is 0.3-0.5 tons/hour
• You produce natural, single-ingredient treats
• Color, flavor, and nutrient retention are priorities

Consider a larger model (DHG-500 or DHG-1000) if:

• Your capacity requirement is 0.5-1.0 tons/hour

For Femke's small pet treat plant, the DHG-400 was the right investment. It preserved natural color (90% retention) and flavor, improved pet acceptance from 60% to 95%, and paid for itself in 4-5 months.

Final Thoughts

If you're a small pet treat manufacturer drying vegetables, don't use high-temperature dryers. Heat destroys color, flavor, and nutrients. The result is brown, bitter treats that pets reject.

The DHG-400 carrot strip belt dryer in Netherlands operates at 55°C – well below the degradation temperature for carotenoids and natural sugars. The 5-layer design provides 175 minutes of gentle drying. The result is bright orange, sweet, nutritious treats that small pets love.

For vegetable drying, the math is simple: low temperature = natural color = better flavor = happier pets = repeat customers.

RICHI offers documentation in Dutch, temperature guidance, blanching advice, and remote support. Contact RICHI Machinery through the website with your vegetable type, target moisture, and capacity for a recommendation. Tell them about your natural treat application – they can help you select the right dryer and temperature settings for optimal color and flavor retention.