Alto-Shaam Halo Heat Dough Proofers & Retarders - 1000-UP/P
Alto-Shaam | Model 1000-UP/P • Window Doors • Simple On/Off Control
Rise dough and hold delicate baked goods at the perfect temperature with Alto-Shaam’s patented Halo Heat technology. Gentle, even radiant heat surrounds product without fans, harsh elements or added humidity—so breads, pastries and croissants stay light, moist and ready for a flawless finish.
Features
- Halo Heat system delivers uniform, low-velocity radiant heat—no hot spots, no drying out.
- Two completely independent cavities; each holds 8 full-size sheet pans (18 × 26 × 1").
- Simple rocker switch & separate thermostats per cavity (60 °F – 200 °F / 16 °C – 93 °C).
- Insulated, 304 stainless-steel interior & exterior for long-term durability and easy cleaning.
- Full-view window doors reduce heat loss by letting staff check product without opening.
- 5" (127 mm) heavy-duty casters – 2 rigid, 2 swivel with brake – glide smoothly and lock securely.
- EcoSmart design lowers operating costs (heat rejection only 385 BTU/hr).
- Safety & sanitation certified: cULus, UL EPH NSF 4, CE, IPX3 splash protection, TUV NORD.
Specifications
| Exterior (H × W × D) |
75-13/16" × 23-15/16" × 32-11/16" (1924 × 608 × 804 mm) |
| Interior – each cavity |
26-7/8" × 18-7/8" × 26-1/2" (682 × 479 × 673 mm) |
| Net weight |
282 lb (128 kg) |
| Temperature range |
60 °F – 200 °F (16 °C – 93 °C) |
| Electrical |
120 V 1 ph 16 A 1.9 kW (NEMA 5-20P)
208 V 1 ph 7 A 1.4 kW (NEMA 6-15P)
230 V 1 ph 7.7 A 1.8 kW (CEE 7/7, CH2-16P, BS 1363, AS/NZS 3112) |
| Recommended clearances |
Top 2" | Sides 1" | Back 3" |
What our Experts Think
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Dual-Purpose Proofing & Holding System – The 1000-UP/P is a high-performance unit designed to function as both a low-temperature holding cabinet and a dough proofer, supporting flexible bakery and kitchen workflows in one appliance.
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Halo Heat Gentle Temperature Control – Uses radiant, low-intensity heat to maintain precise, uniform temperatures without fans or added humidity, preserving dough structure and food moisture quality.
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Dual-Compartment Productivity Advantage – Two independently controlled chambers allow simultaneous proofing and holding at different temperatures, improving production efficiency in busy kitchens.
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High-Capacity Professional Design – Each compartment accommodates multiple full-size sheet pans, making it suitable for bakeries, hotels, and high-volume foodservice operations.
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Precise Proofing Environment Control – Adjustable thermostats and tight temperature tolerance ensure consistent dough rise conditions and reliable baking preparation results.
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Moisture Retention Without Over-Drying – Sealed insulated cavity design helps maintain ideal humidity balance naturally, avoiding crusting or drying during extended holds.
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Energy-Efficient, Ventless Operation – Waterless Halo Heat system eliminates the need for plumbing or external venting, reducing installation complexity and operating costs.
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Built for Continuous Commercial Use – Stainless steel construction, mobile casters, and heavy-duty components ensure durability in demanding bakery and foodservice environments.
Q&A
Q: What is the Alto-Shaam 1000-UP/P Halo Heat dough proofer & retarder?
A: The Alto-Shaam 1000-UP/P is a double-compartment, mobile commercial cabinet that combines a heated holding cabinet and dough proofing function in one unit using Halo Heat® low-temperature technology. It is designed for proofing dough and holding prepared foods at safe, precise temperatures in high-volume kitchens.
Q: How does the proofing and retarding function work?
A: Each compartment has independent temperature controls, allowing one side to proof dough while the other can hold hot food. The gentle, uniform Halo Heat system maintains stable, low-temperature environments ideal for controlled dough fermentation and holding consistency.
Q: What is the temperature range?
A: The unit operates approximately from 60°F to 200°F (16°C to 93°C), giving precise control for both proofing and hot holding applications.
Q: What is the capacity of the 1000-UP/P?
A: Each compartment can hold up to 8 full-size sheet pans (18" × 26"), making it suitable for bakery production and high-volume kitchen operations.
Q: Why use Halo Heat for proofing and holding?
A: Halo Heat provides gentle, uniform radiant heat without fans or harsh heating elements, preventing drying or uneven fermentation while maintaining product quality and moisture.
Q: What types of kitchens use this unit?
A: It is commonly used in bakeries, restaurants, hotels, and institutional kitchens that need reliable dough proofing and hot food holding in the same compact system.
Maintenance Tips
- Clean interior cavity, racks, and side walls daily using mild soap and warm water to prevent flour and residue buildup and maintain hygienic proofing conditions.
- Wipe exterior stainless steel surfaces regularly with a non-abrasive cleaner, always following the grain to preserve finish quality.
- Keep water pan clean and change water frequently to avoid bacterial growth and maintain proper humidity control during proofing cycles.
- Inspect door gaskets and seals regularly to ensure tight closure for stable temperature and humidity retention.
- Clean temperature and humidity sensors periodically to maintain accurate proofing and retarding performance.
- Avoid pressure washing or flooding the cabinet—use damp cloth only to protect electrical and Halo Heat components.
- Ensure proper airflow by keeping vents and interior load spacing clear to prevent uneven proofing.
- Schedule routine professional servicing for thermostat calibration and system checks to maintain long-term reliability and consistency.
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