How to Make Hot Water with a Solo Espresso Machine

If you’ve ever wanted to use your espresso machine for more than just brewing—like making instant soup, warming a milk jug, or simply having hot water on demand—you’re not alone. Many home baristas wonder if their machine can pull double duty, especially without needing a separate kettle. The good news? If you own a Solo espresso machine, it can do exactly that. But it’s not as simple as flipping a switch. Here’s exactly how to do it the right way.

The Solo espresso machine lets you produce hot water through its steam wand system. By opening a dedicated valve, you can dispense approximately 150 ml of hot water automatically before the flow stops—enough for most quick tasks. You’ll need to manually control the valve beyond that point to get more water, and always take care to avoid burns.

Why Your Espresso Machine Can Make Hot Water

Most espresso machines with a heat exchange or single-boiler design use the same boiler for both brewing espresso and steaming milk. These boilers heat water to temperatures ideal for extracting espresso (around 90–96°C), which also happens to be perfect for producing hot water. On the Solo machine, that same high-temperature water can be accessed via the steam wand’s water outlet by opening a special valve—without engaging the steam function itself.

How the Hot Water Function Works on the Solo Machine

The Solo machine routes heated boiler water to the steam wand tube when you activate the hot water valve. This is not the steam function (which vaporizes water using air), but rather a direct release of hot liquid water. The valve that controls this function must be turned manually, and the machine will dispense water until either you close the valve or about 150 ml has been released, after which the flow may stop automatically.

Step-by-Step: Making Hot Water with Your Solo Machine

Before starting, ensure your machine is fully warmed up and in standby mode. Then follow these steps carefully to access the hot water safely:

• 1. Prepare the Machine: Ensure your Solo machine is fully heated and in a ready state. The boiler should have reached operating temperature.
• 2. Pull Out the Steam Wand Tube: Gently lift the chrome outer tube of the steam wand upward to access the water outlet hidden inside.
• 3. Place a Container: Set a heat-resistant container directly under the steam wand tip. Warning: Both the steam and the hot water can cause serious burns. Be cautious of residual steam release and splashing water during this process.
• 4. Open the Hot Water Valve: Turn the valve clockwise until it stops. You should see a light indicating the valve is open. Hot water will begin flowing from the steam wand tube into your container.
• 5. Monitor the Water Flow: The machine will typically release around 150 ml of hot water before the flow stops automatically. For more water, turn the valve off and then on again as needed.
• 6. Close the Valve: Once you’ve dispensed the desired amount, turn the valve counterclockwise to shut off the hot water flow immediately.

Safety Tips When Using Hot Water Function

Producing hot water from your espresso machine is convenient—but it comes with risks. The water exits at near brewing temperature, typically between 90–96°C, and residual steam may escape when you first activate the valve. Always use oven mitts or a cloth when handling the steam wand, and place your water container securely to avoid spills. Never point the wand at yourself or others, and keep children away during operation.

Frequently Asked Questions

Can I use the steam wand to make hot water on any espresso machine?

Not all espresso machines allow hot water dispensing through the steam wand. On the Solo machine, it is possible by using a dedicated valve that releases hot water from the boiler—not steam. Other machines may have a separate hot water spout or may not support this function at all.

How much hot water can the Solo machine produce in one go?

The Solo machine will automatically release approximately 150 ml of hot water when the valve is opened. If you need more, you must close and reopen the valve to continue dispensing.

Does the hot water come out as steam or liquid?

The Solo machine dispenses actual hot liquid water from the steam wand tube, not steam. However, residual steam may escape when first opening the valve, so take care to avoid burns.

Is the hot water from the Solo machine at brewing temperature?

Yes, the water is heated to the same temperature used for espresso extraction—typically between 90–96°C—which is ideal for most hot water uses like dissolving instant drinks or warming accessories.

Do I need to do anything special to prepare the machine before making hot water?

Yes. The machine must be fully heated and in standby mode. Ensure the steam boiler is up to temperature before opening the hot water valve.

Can using the hot water function damage my machine?

No, not if used correctly. The hot water function is built into the machine’s design on models like the Solo. Just avoid leaving the valve open for extended periods or forcing steam through it when dispensing water.

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