⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔬 Artisan Roaster Reviews

⭐⭐⭐⭐⭐ Elena Martinez - Small-Batch Coffee Roastery
"I’ve been using the BY-3KG model for five months now, and it has completely transformed our roasting consistency. The copper drum makes a noticeable difference—heat distribution is flawless, and we’re achieving richer, more balanced flavor profiles across Arabica and Ethiopian beans. The digital controls are intuitive, and being able to save roast profiles saves us so much time."

Purchase Date: February 2025 | Usage Period: 5 months

🍽️ Commercial Cafe User Reviews

⭐⭐⭐⭐⭐ James Wu - Urban Brew Cafe (6-Location Chain)
"We upgraded two of our locations with the BY-6KG Pro model, and the ROI has been outstanding. The AI roast profiling initially seemed like overkill, but after just a few weeks, it learned our preferred dark roast curve and now delivers near-perfect consistency with zero manual tweaks. Preheating is 30% faster than our old unit, and the rapid 3-minute cooling preserves aroma like nothing we’ve used before."

Purchase Date: November 2024 | Usage Period: 8 months

🏡 Home Enthusiast Reviews

⭐⭐⭐⭐☆ Daniel Park - Home Coffee Roaster & Podcaster
"As someone who roasts for YouTube content and personal use, the BY-3KG is the perfect middle ground between pro performance and home practicality. I opted for electric mode since my garage setup isn’t gas-ready, and it still heats up impressively fast. The stainless steel exterior wipes clean in seconds, and I love that I can experiment with roast profiles for different origins. Only reason I didn’t go full 5 stars? The manual could be more detailed for first-time roasters."

Purchase Date: April 2025 | Usage Period: 2 months

🏭 Medium-Scale Roastery Reviews

⭐⭐⭐⭐⭐ Sofia Ramirez - Head Roaster, Terra Bean Co.
"We run the BY-6KG Advanced model in our 1,200 sq ft roastery, and it handles our weekly 80kg output with ease. The dual power option was a game-changer—we use gas for peak hours and switch to electric during off-peak to manage energy costs. Real-time temperature monitoring gives us peace of mind, and FDA compliance made licensing a breeze. Customer support even walked us through custom calibration for our Sumatran beans."

Purchase Date: January 2025 | Usage Period: 6 months

🚚 Mobile Coffee Truck Reviews

⭐⭐⭐⭐☆ Marcus Lee - Brew Nomad (Mobile Coffee Truck)
"I was skeptical about fitting a 3KG roaster in my truck, but the compact footprint of the BY-3KG worked out perfectly. We roast fresh on-site at farmers markets, and customers love watching the process. The hybrid heating lets me choose based on location—gas at outdoor events, electric when docked at a café partner. Cooling time could be slightly faster under high ambient temps, but overall, it’s been rock-solid."

Purchase Date: December 2024 | Usage Period: 7 months

📊 Rating Statistics

Average Rating: 4.8/5 ⭐ (203 Reviews)

Detailed Rating Distribution:

• ⭐⭐⭐⭐⭐ (5-star): 148 reviews (73.0%)
• ⭐⭐⭐⭐☆ (4-star): 45 reviews (22.2%)
• ⭐⭐⭐☆☆ (3-star): 7 reviews (3.4%)
• ⭐⭐☆☆☆ (2-star): 2 reviews (1.0%)
• ⭐☆☆☆☆ (1-star): 1 review (0.5%)

🏆 Industry Expert Recommendations

Coffee Technology Expert Recommendation

Dr. Alan Foster - Coffee Equipment Research Institute
"The Dongyi BY series stands out in the mid-commercial roaster segment due to its copper drum innovation and hybrid heating efficiency. In comparative testing, it achieved 22% more uniform heat transfer than stainless-only drums and demonstrated superior flavor retention thanks to its integrated rapid cooling. For cafes scaling from artisan to commercial production, this is a smart, future-proof investment."

Roasting Consultant Recommendation

Lena Choi - Specialty Coffee Consultant (15+ Years Experience)
"I recommend the BY-6KG Pro to clients launching direct-trade roasting programs. The AI-assisted profiling reduces learning curves for new roasters, while still offering full manual control for experts. Paired with its food-grade materials and FDA compliance, it’s one of the few roasters that balances automation with artisan integrity."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Flawless Flavor Control" - Amir Hassan (Roastery Owner)

Posted: 2 days ago

"After testing three roasters, this one delivered exactly what we needed—consistent medium roasts with bright acidity. The copper drum really does make a difference. Setup was smooth, and the team responded quickly to a calibration question."

⭐⭐⭐⭐⭐ "Worth Every Penny" - Chloe Bennett (Cafe Manager)

Posted: 1 week ago

"We bought the BY-6KG for our new flagship location. It’s fast, reliable, and looks professional behind the counter. Our baristas love the digital interface—no more guesswork."

⭐⭐⭐⭐☆ "Great for Growing Brands" - Devin Cole (Micro-Roaster)

Posted: 3 weeks ago

"Perfect step-up from home roasting. The 3KG batch size is ideal for testing new beans without waste. Only suggestion: include a quick-start video guide."

🎯 Reviews by Use Case Category

☕ Commercial Cafes & Roasteries (98 Reviews)

• Average Rating: 4.9/5
• Most Praised Features:
• Uniform heat distribution (94% mentioned)
• Rapid cooling system (89% mentioned)
• Digital control precision (92% mentioned)

🏠 Home & Boutique Roasters (61 Reviews)

• Average Rating: 4.7/5
• Most Praised Features:
• Compact 3KG model (85% mentioned)
• Electric/gas flexibility (78% mentioned)
• Ease of cleaning (82% mentioned)

🚐 Mobile & Pop-Up Operations (27 Reviews)

• Average Rating: 4.6/5
• Most Praised Features:
• Hybrid power compatibility (93% mentioned)
• Durable stainless steel build (80% mentioned)
• On-site roasting capability (87% mentioned)

🏭 Medium-Scale Production (17 Reviews)

• Average Rating: 4.8/5
• Most Praised Features:
• 6KG batch efficiency (95% mentioned)
• AI roast profiling (Pro model) (88% mentioned)
• FDA compliance and safety monitoring (100% mentioned)