How to Keep Your La Pavoni Espresso Maker Clean and Working Well

What a La Pavoni is and why it needs different care

A La Pavoni is a manual lever espresso maker — the kind where you pull a handle down to force hot water through ground coffee. Unlike automatic machines, it has no electronics, no pumps, and no built-in water heating. You fill a boiler with water, heat it on a stovetop or with an internal heating element (depending on the model), and then operate the lever by hand each time you pull a shot. Because there are fewer moving parts and no computer controls, a La Pavoni can last decades with proper care.

The trade-off is that you need to understand how it works to keep it working. Water sits in the boiler, metal touches metal repeatedly, and pressure builds inside. Mineral deposits from tap water, old coffee oils, and corrosion are the real enemies. A La Pavoni stored wet or left with stale water inside will develop rust and scale that no amount of wiping can fix later.

Key Takeaways

• Empty the boiler completely after each use and wipe the interior dry with a clean cloth to prevent rust and mineral buildup.
• Backflush the group head (the part where the portafilter attaches) with water only, never with a blind basket, to clear old coffee grounds and oils.
• Soak removable parts like the portafilter and basket in hot water with a small amount of espresso machine cleaner once a week to dissolve coffee oils.
• Descale the boiler every three to six months using a commercial espresso machine descaler, following the product instructions for your specific model.
• Store your La Pavoni empty and dry, with the group head gasket lightly oiled, to prevent corrosion during periods when you are not using it.

Emptying and drying the boiler after every use

The boiler is where water sits under pressure, and it is the part most prone to rust if left wet. After you finish pulling shots, turn off the heat and let the machine cool for a few minutes until it is safe to handle. Open the fill cap on top of the boiler and pour out any remaining water — do not leave it sitting inside.

Once the boiler is empty, take a clean, lint-free cloth (microfiber works well) and reach inside with your hand or a long cloth to wipe the interior walls dry. You do not need to scrub hard; the goal is to remove standing water so air can reach the metal. If you skip this step regularly, mineral deposits will build up and eventually pit the boiler surface. On models with a drain plug at the bottom, open it briefly to make sure no water is trapped there either.

Cleaning the group head and portafilter between shots

The group head is the part sticking out from the machine where you screw in the portafilter (the handle with the basket). After each shot, old coffee grounds and oils stay behind in the group head and basket. If left to dry, they become hard and bitter, and they can block water flow on the next use.

Immediately after pulling a shot, remove the portafilter and tap the used grounds into a trash bin. Rinse the basket under running water while rubbing it gently with your thumb to clear any stuck grounds. Then lock the empty portafilter back into the group head and pull the lever a few times to flush water through — this is called backflushing. Do this for three to five seconds. The water will spray out around the portafilter, so do it over a sink. Backflushing clears the group head of old oils and grounds that would otherwise build up and affect the taste of your next shot.

Weekly soaking of removable parts

Once a week, soak the portafilter, basket, and shower screen (the flat part inside the group head) in hot water mixed with a small amount of espresso machine cleaner. Products like Cafiza or similar espresso-specific cleaners are designed to dissolve coffee oils without damaging metal. Mix according to the product label — usually a teaspoon or two per cup of water.

Let the parts soak for 15 to 20 minutes, then scrub gently with a soft brush or cloth to loosen any buildup. Rinse thoroughly under running water until the water runs clear and you smell no cleaner. Dry each piece with a cloth before reassembling. This weekly soak prevents the slow accumulation of rancid oils that can make your espresso taste stale even when the beans are fresh.

Descaling the boiler every few months

Mineral deposits from tap water build up inside the boiler over time, especially if you live in a hard water area. These deposits reduce heat transfer and can eventually clog the water flow. Descaling means running a mild acid solution through the machine to dissolve the minerals.

Use a commercial espresso machine descaler (citric acid-based products are common and gentle on La Pavoni machines). Fill the boiler with water and add the descaler according to the product instructions — amounts vary by brand. Heat the machine and pull the lever several times to push the solution through the group head into a cup or sink. Let it sit for 15 to 20 minutes, then repeat. After you have cycled the descaler through, empty the boiler, refill with fresh water, and flush the entire machine again several times to rinse out any remaining descaler. The smell and taste of descaler can linger if you skip this rinse step. Descale every three to six months, or more often if your tap water is very hard.

Caring for the group head gasket and seals

The gasket is a rubber ring inside the group head that creates a seal when you lock in the portafilter. Over time, gaskets dry out and crack, which causes water to leak around the portafilter instead of pushing through the coffee. A dried gasket is one of the most common reasons a La Pavoni stops working properly.

After you clean the group head, lightly coat the gasket with a small amount of food-grade silicone oil or espresso machine oil (check your manual for the recommended type). Wipe away any excess with a cloth. This keeps the rubber supple and extends its life. If you store your machine for weeks or months without using it, oil the gasket before you put it away. When you are ready to use the machine again, the gasket will still be flexible instead of hard and cracked.

Storage and long-term care

If you use your La Pavoni daily, the routine above is enough. If you use it occasionally or plan to store it for a month or longer, take extra steps. Empty the boiler completely and wipe it dry. Remove the portafilter and basket and leave them out to air dry. Lightly oil the group head gasket. Store the machine in a cool, dry place — not in a damp cabinet or near a sink where humidity can reach it.

Before you use the machine again after storage, fill the boiler with fresh water, heat it, and flush water through the group head several times to clear any dust or stale water. This rinse takes only a minute and ensures your first shot tastes clean. If you notice rust spots on the boiler interior or a musty smell when you open the fill cap, the machine was stored too wet. Descale it and run several full boilers of water through before making espresso.

Frequently Asked Questions

Can I use tap water or should I use filtered water?

Filtered water is better because it has fewer minerals, which means less descaling work. Tap water is fine if you descale every three months instead of every six. If your tap water is very hard (you can check with your local water utility), filtered water will extend the life of your gasket and boiler noticeably.

What should I do if water leaks around the portafilter?

The gasket has likely dried out or cracked. Remove the portafilter, look inside the group head, and check if the rubber ring looks hard or has visible cracks. If it does, the gasket needs to be replaced — they cost a few dollars and take a minute to swap out. Until then, oil it well and it may seal better temporarily.

How do I know if my machine needs descaling?

If water flows more slowly through the group head than it used to, or if the machine takes much longer to heat up, descaling is overdue. You can also open the fill cap and look inside — white or tan crusty buildup on the boiler walls is mineral deposit. Descale as soon as you see it.

Is it okay to leave water in the boiler overnight?

No. Water left sitting in the boiler will begin to rust the interior within hours, especially if the machine is not heated. Always empty it after use. This is the single most important habit for keeping a La Pavoni in good condition for years.

Can I use regular kitchen descaler or coffee maker descaler in my La Pavoni?

Use only products labeled for espresso machines. Regular kitchen descalers can be too strong and may damage the gasket or internal seals. Espresso machine descalers are formulated to be gentler while still effective on the mineral deposits that form in high-pressure machines.