How to Safely Descale a Dual-Boiler Coffee Machine > 자유게시판

Regular descaling of your dual boiler coffee maker is vital to sustain its efficiency, prevent internal degradation, and protect the taste profile of every brew.

Unlike basic models, dual boiler espresso machines are engineered with distinct heating circuits for brewing and steaming, offering superior temperature stability but requiring more careful upkeep.

The precision engineering within these machines demands cautious handling during descaling—rushing or using incorrect solutions may compromise seals, sensors, or boiler integrity.

To ensure long-term reliability, adhere to this detailed, step-by-step descaling procedure tailored for dual boiler systems.

Begin by gathering the right supplies.

Opt for partakstore a professional-grade descaler designed for espresso machines and coffee makers.

White vinegar and non-specialized cleaners may impart unpleasant tastes, degrade rubber seals, or damage chrome plating on internal components.

Always refer to your owner’s manual—the brand may require a specific chemical formulation to maintain warranty coverage.

Gather a sanitized reservoir, a graduated measuring cup, a microfiber cloth or soft-bristled brush, and a supply of clean, chlorine-free water for thorough rinsing.

Always disconnect power and allow the unit to cool completely before beginning maintenance.

Allow it to cool completely to prevent burns or thermal shock to internal components.

Empty the water tank and remove the drip tray, portafilter, and any removable parts.

If your machine has a steam wand or hot water spout, detach any attachments or filters that could interfere with the flow.

Next, prepare the descaling solution according to the manufacturer’s instructions.

Typically, this involves mixing a specific amount of descaler with water.

Gently fill the reservoir with the prepared descaling mixture without splashing or overfilling.

Fill only up to the indicated water level mark—never top off beyond it.

Perform the descaling process in a kitchen with open windows or under an exhaust fan.

Now, begin the descaling cycle.

Many high-end models feature a dedicated "Descaling" or "Clean" program accessible via the control panel.

Different manufacturers use unique key combinations—consult your specific model’s guide for accurate activation.

Without an automated mode, you must simulate the process by running the solution through the brew and steam circuits individually.

Always treat the brew boiler before the steam boiler to protect delicate group head components.

Turn on the brew pump and allow the descaling solution to flow through the group head for several minutes.

Do not rush—letting the solution dwell for 20 minutes is often more effective than aggressive flushing.

Do not let the solution sit for longer than instructed, as prolonged exposure can damage seals and gaskets.

Once the brew boiler has been treated, move on to the steam boiler.

Turn on the steam valve and let the descaling fluid exit through the wand for several cycles.

Never let the fluid drip onto countertops or electrical surfaces—it may cause corrosion or stains.

Intermittent steaming helps dislodge scale from narrow tubing and improves circulation efficiency.

Repeat this process if necessary, ensuring full coverage.

Never skip the final rinse; residual descaler alters flavor and poses health risks.

Run multiple full tanks of water through both systems—this may take 3–5 complete cycles.

This step may require several full tank refills.

Leftover acid can cause metallic aftertastes, stomach irritation, or even long-term exposure risks.

Carefully reinstall all removed components exactly as they were before descaling.

Wait for the machine to complete its warm-up cycle before proceeding.

Run a few cycles of plain water through both boilers to ensure complete flushing.

Adjust the hardness dial or menu setting to match your tap water’s mineral content.

Observe brewing pressure, extraction time, and steam output for the next 48–72 hours.

Consistency in extraction and steam power indicates successful descaling.

If you notice any irregularities, such as reduced pressure or unusual noises, consult a qualified technician.

Frequency should be adjusted based on water test results and how often you brew—track usage to optimize your schedule.

What works for a Breville may damage a Nuova Simonelli—always consult your specific manual.

Leave internal boiler servicing to certified service centers—do not open sealed units.

When in doubt, seek professional assistance.

A clean dual boiler machine doesn’t just last longer—it makes better coffee, every single time.