Subminimal combined logo.png

Get to know your Subminimal tools


NanoFoamer Instructions:

1.    Select a NanoScreen to suit your preferred microfoam type: Superfine, fine, or ordinary foam.

2.   Churn your warm milk (55°C is ideal) for about 15 seconds. Start in the middle to incorporate air, then move to the side to continue churning and blending the foam.

3.   Pour your perfectly microfoamed milk over espresso. It should feel like pouring paint. Draw a heart, rosetta or something abstract!




Changing the NanoScreens and adjusting how long you churn the milk adjusts the amount and density of microfoam you make.

  • For thin or less foam use the Super Fine NanoScreen and a quick churn.

  • For a medium amount or thickness of foam, use the Super Fine NanoScreen and churn for longer.

  • For a greater amount of foam, or thicker head of foam for drinks such as cappuccinos, use the Fine NanoScreen and churn for longer.


Note that the NanoFoamer can also be used without a NanoScreen to create normal foam or for mixing drinks.

Contactless Thermometer

Subminimal Thermometer image 1.png

IR thermometers measures the surface temperatures only, not the internal temperature of food or liquids or materials. Make sure you swirl or stir your milk before measuring for the most accurate reading.

Subminimal Thermometer image 2.png

IR thermometers can be temporarily affected by frost, moisture, dust, fog, smoke or other particles in the air. Be aware that steam, even when a liquid is not boiling, can condense on the thermometer and affect the accuracy of the measurements.

Subminimal Thermometer image 3.png

IR thermometers do not see through glass, liquids or other transparent surfaces, they measure the temperature of the first point of contact.

Subminimal Thermometer image 4.png

IR thermometers have a beam and measure on a spot, make sure this is properly aimed at the surface to measure and not reflecting off other materials like the sides of jug or pot.  Also, highly reflective surfaces like stainless steel tend to reflect ambient infrared energy rather than emit their own. So measuring boiling water in a highly polished stainless pot may give an incorrect reading.

Frequently Asked Questions

Find the answers to all things relating to Subminimal Tools here.

Can't find what you're looking for or need more help? Send us an inquiry via


What temperature should my milk be to create microfoam?

55°C is the best temperature for creating silky, smooth microfoam and enhancing the perceived sweetness of the milk. If you like your cappuccino extra hot, then consider going up to 70°C but never more than that, as the proteins break down and the milk can start tasting burned.

How do I heat the milk?

On a stovetop. Subminimal have designed a unique the FlowTip Milk Jug specifically for this purpose. It features a heat resistant handle so that it can be used on all heating elements. Alternatively, you can heat your milk in the microwave (using a microwave safe container of course!) although it is harder to achieve the exact temperature you want.

What milk types can I use with the NanoFoamer?

The NanoFoamer is able to be used with all milk types however, using fresh, full cream milk will yield the best results. Full cream milk has a higher fat content that gives the milk a delicious creamy texture. Homogenized milk and skim milk also work, as do milk alternatives such as Almond milk and Oat milk but each milk type yields slightly different results on the foam texture.

Can I create microfoam with cold milk?

The NanoFoamer works with cold milk, but the microfoam created feels denser and won't flow quite as nicely as when the milk is heated to 55°C. It makes an excellent iced latte in the summertime, however.

Can I use the NanoFoamer to blend powders, such as chocolate powder, into my milk?

Yes, but only after you remove the NanoScreen from the impeller, otherwise the powder will cause the Nanoscreen to become clogged.

Can the NanoFoamer be washed in the dishwasher?

No, as it is an electrical device. The NanoFoamer is watertight when closed, so you can comfortably wash it under running water.

How do I clean the NanoScreens?

Turn the NanoFoamer on under running water, or in a glass of water immediately after each use. This ensures that any milk residue ejects from the blades and screens. Run it in a glass of soapy water for a deeper clean.

How is the NanoFoamer powered?

The NanoFoamer uses two AA batteries, but we encourage you to use the rechargeable type so that you never run out.

How long will the batteries last in my NanoFoamer?

The NanoFoamer only runs for about 30 seconds when foaming milk for a cappuccino so you can make at least 50 cups before you start noticing the motor slowing down. The motor slowing down is a good indication that your batteries need recharging or replacing.

FlowTip Jugs

Why am I getting burned or scalded milk on the bottom of the FlowTip jug?

Burned or scalded milk on the bottom of the FlowTip jug may indicate that you are heating the milk too fast. Due to the small size of the pot and the speed at which it can heat up, it's important to always heat up the milk slowly or on your stovetops lowest setting. This should only take about 2 minutes to warm up to 55-65°C.

Avoid heating up a second batch of milk without cleaning in-between as that will be more prone to burning.

Can I use the FlowTip Jug on an induction cooktop?

The FlowTip jug is compatible with induction stoves but many models need to detect a minimum pot size in order to turn on. The FlowTip jug has a bottom diameter of 83mm and may not be detected by all models. An induction diffuser may be needed if your cooktop does not detect the FlowTip Jug.

Can I use the FlowTip Jug on a gas cooktop?

The Flowtip jug is compatible with gas stoves. Use it on the smallest setting and make sure the handle is not directly over the flame. Note that the black model will discolour a bit at the bottom if used directly on an open flame. Using a stovetop diffuser may help to prevent this.

Can I use the FlowTip Jug on an electric cooktop?

Yes. Place the Flowtip offset from the center so the handle is not directly above the heat source. Be careful with the highly abrasive electric stoves such as the models with exposed coils or rough metal surfaces as they may scratch the black finish. If your electric stovetop is not the glass/ceramic type, we recommend selecting the stainless colour jug or using a stovetop diffuser.

What is the volume of the jug?


Can the FlowTip Jug be washed in the dishwasher?


How do I clean the FlowTip Jug?

The FlowTip Jug comes with a mini cleaning brush to help remove any milk residue at the bottom and can be washed in warm, soapy water. Avoid using abrasive scourer pads on the black FlowTip Jugs as this could leave scratches. For an easy clean, rinse jugs after each use and avoid leaving any milk sitting in the bottom of the jug.

Can I use the FlowTip Jug in the microwave?

No! Both FlowTip Jugs are made out of stainless steel.