Bunn WAVE COMBO SmartWave Low Profile Wide Base Coffee/Tea Brewer - BU399000020

Bunn WAVE COMBO SmartWave Low Profile Wide Base Coffee/Tea Brewer - BU399000020

The Bunn 39900.0020 WAVE COMBO SmartWAVE coffee brewer brews 3.9 gallons per hour. This item brews into a thermal carafe using a slide out booster tray.

Features

• BrewMETER allows automatic programming of pulse routine
• Adjustable legs to accommodate up to 3.0L lever action and 2.5L push button BUNN airpots and thermal servers
• Brew into 1.9L thermal carafe using the slide-out booster tray
• Four-digit LED read-out for simple programming
• Utilize the same LED read-out for brewer status (Ready, Heating, Brewing)
• SmartWAVE technology increases turbulence in the brew funnel
• Energy-saver mode reduces tank temperature during idle periods
• Ensures coffee brew quality with cold brew lock out capability
• SplashGard funnel deflects hot liquids away from the hand

Specifications

What our Experts Think

• Built for dual-purpose coffee and tea brewing, making it ideal for cafés, hotels, offices, and multi-beverage self-serve stations.
• Uses SmartWAVE turbulence technology, which improves extraction consistency for richer coffee and well-balanced iced tea flavor profiles.
• Designed for medium-volume service (around 3.9 gallons per hour / ~60+ cups), supporting steady demand in busy environments.
• Features a wide-base, low-profile design, allowing flexible placement under counters while accommodating multiple server types.
• Compatible with airpots, thermal servers, and carafes, including a slide-out booster tray for smaller 1.9L containers.
• Includes programmable pulse brew (BrewMETER) for better control over flavor strength and extraction timing.
• Equipped with a digital LED interface, simplifying operation, monitoring, and recipe adjustments for staff.
• Built with a commercial stainless steel frame, ensuring durability and long-term reliability in high-traffic foodservice environments.
• Includes energy-saver mode and cold brew lockout, helping maintain efficiency and consistent brew quality.
• Supports iced tea concentrate + dilution brewing, enabling dual-function beverage service from a single unit.

Q&A

Q: What is the Bunn WAVE COMBO SmartWAVE Low Profile Wide Base Coffee/Tea Brewer (BU399000020)?
A: The Bunn WAVE COMBO is a commercial SmartWAVE series brewer designed to make both fresh brewed coffee and iced tea from a single low-profile unit, ideal for offices, cafés, and self-serve beverage stations.

Q: What does the “COMBO” feature do?
A: It allows the brewer to handle coffee and tea recipes with separate programming, including coffee brewing and iced tea concentrate with dilution control for consistent beverage quality.

Q: How much can it brew per hour?
A: It produces about 3.9–6.4 gallons per hour (up to ~62 cups of coffee) depending on settings and incoming water conditions.

Q: What is SmartWAVE technology?
A: SmartWAVE increases turbulence in the brew funnel to improve extraction consistency, helping deliver better flavor for both coffee and tea beverages.

Q: What serving containers does it support?
A: It is designed for airpots and thermal servers (up to ~3.0L) and can also brew into 1.9L thermal carafes using a slide-out booster tray for flexible service setups.

Q: Does it require plumbing?
A: Yes, it is a plumbed automatic brewer, designed for continuous operation in commercial environments.

Q: What are the key features?
A: Key features include digital LED control panel, BrewMETER pulse programming, cold-brew lockout, SplashGard funnel, energy-saver mode, and adjustable legs for multiple server sizes.

Q: What are the electrical requirements?
A: It runs on 120V, ~1350W, single-phase power, using a standard commercial plug setup.

Q: What is the Bunn WAVE COMBO best used for?
A: It is ideal for small to medium commercial beverage stations that need a space-saving machine capable of producing both coffee and iced tea with consistent quality and fast turnaround.

Maintenance Tips

• Daily sprayhead cleaning (critical): Remove and clean sprayhead holes to maintain SmartWAVE turbulence performance and ensure even extraction for both coffee and tea.
• Deliming routine (1–3 months or more often in hard water): Use a deliming spring to clear mineral scale in the sprayhead tube to prevent slow flow, weak brew, or volume inconsistency.
• Clean brew funnels daily: Wash coffee and tea funnels thoroughly to prevent coffee oils or tea tannins from affecting flavor crossover.
• Flush dilution system (for iced tea mode): Run water-only cycles through the tea side to prevent concentrate residue buildup and keep dilution ratios accurate.
• Wipe exterior and splash zones daily: Use mild detergent only; keep control panel, base, and funnel area free of sticky residue and staining.
• Check spray pattern regularly: SmartWAVE depends on controlled turbulence—uneven spray usually indicates clogging or scale buildup.
• Maintain water supply (20–90 PSI): Stable pressure ensures correct batch size and consistent performance across both coffee and tea modes.
• Inspect funnels, seals, and dilution nozzles: Prevent leaks or cross-contamination between coffee and tea systems.
• Descale internal system periodically: Mineral buildup reduces heating efficiency and can distort both brew strength and tea dilution accuracy.
• Use energy-saver mode during idle periods: Helps reduce tank stress and extends component lifespan in high-volume environments