The Subminimal NanoFoamer is a handheld milk frother built around a patented impeller and NanoScreen system that shears milk into silky, fine-textured microfoam without a steam wand. Two models are available: the Lithium, a USB-C rechargeable dual-speed frother rated to 3,500 RPM, and the V2, a single-speed AA-battery model rated to 3,000 RPM. Both measure 234 × 35 mm and share IPX-4 splash resistance.
Conventional whisk frothers spin fast enough to add air but not to break bubbles down to a microscopic scale. The NanoFoamer's patented impeller and interchangeable NanoScreen work together differently: the impeller first aerates the milk, then the NanoScreen shears those bubbles into a glossy, fine-textured microfoam with the body and consistency needed for latte art. The result is a texture that sits on espresso rather than floating above it, the practical difference between a drink that looks and tastes cafe-made and one that merely looks frothy.
Each NanoFoamer ships with two NanoScreens. Swapping screens changes the aeration level, letting the same tool produce the tight, dense microfoam of a flat white or the lighter, airier foam of a cappuccino. Because the screens are the variable, not the technique, dialing in a new texture takes seconds rather than a new learning curve. Replacement screens are available separately, so the tool stays serviceable over time rather than becoming disposable when a screen wears.
The shaft, cap, and NanoScreen mesh are stainless steel 304; the impeller is food-safe POM. IPX-4 splash resistance means the NanoFoamer can be rinsed under running water on all sides without damage, with no disassembly required for cleanup. The Lithium model adds a high-capacity 1,400 mAh rechargeable cell and a dual-speed motor, delivering consistent torque from the first cup of the day to the last without the voltage drop that affects AA-powered devices as batteries drain. The V2 runs on two standard AA batteries, keeping it cable-free and straightforward to power anywhere.
| Specification | Lithium (Rechargeable) | V2 (Battery Operated) |
|---|---|---|
| Dimensions | 234 × 35 mm | 234 × 35 mm |
| Weight | 137 g | 104 g |
| Max RPM | 3,500 RPM | 3,000 RPM |
| Speed Settings | Dual-speed | Single-speed |
| Power Source | Rechargeable USB-C (1,400 mAh, 3.7V) | 2 × AA batteries (not included) |
| Water Resistance | IPX-4 | IPX-4 |
| Indicator Lights | Yes | No |
| Colors | Black, White | Black |
| NanoScreens Included | 2 | 2 |
| Wall Mount Included | Yes | Yes |
| Impeller Material | Food-safe POM | Food-safe POM |
| Shaft and Mesh Material | Stainless Steel 304 | Stainless Steel 304 |
| Cable Included | USB-C to USB-C | No |
The NanoFoamer suits home baristas and prosumers who want cafe-quality microfoam for espresso drinks (flat whites, lattes, cappuccinos) without an espresso machine with a steam wand. It works with any milk jug or cup and is compact enough for small kitchens or travel. The Lithium model is the stronger choice for daily, high-volume use; the V2 suits those who prefer replaceable batteries or a lighter tool.
The NanoFoamer does not heat milk and requires a separate heat source for warming. It is a handheld single-serving tool and is not suited to producing large volumes of foam in a single session. It does not connect to an espresso machine or automate any part of the brewing process.
The NanoFoamer does not heat milk. It textures milk that has already been warmed by a separate source, such as a stovetop, microwave, or milk warmer. Heating and frothing are two separate steps when using the NanoFoamer.
The NanoFoamer Lithium is USB-C rechargeable, runs at dual speeds with a maximum of 3,500 RPM, includes indicator lights, and delivers consistent torque as the battery depletes. The NanoFoamer V2 runs on two AA batteries at a single speed up to 3,000 RPM, has no indicator lights, and is lighter at 104 g versus 137 g. Both share the same dimensions, IPX-4 rating, and included NanoScreens.
Yes. Both NanoFoamer models carry an IPX-4 splash-resistance rating, which means they can be rinsed under running water on all sides without damage. No disassembly is needed for routine cleaning.
The NanoFoamer's impeller is food-safe POM (polyoxymethylene). The NanoScreen mesh, shaft, and cap are Stainless Steel 304. All food-contact surfaces are designed for repeated daily use.
Both NanoFoamer models include the frother, one impeller, two NanoScreens, a protective hood, a wall mount, and a user manual. The Lithium model also includes a USB-C to USB-C charging cable. AA batteries for the V2 are not included.
At CoffeeRoast Co., we are passionate about coffee. Every piece from our catalog is designed and rigorously tested to make sure you get perfect and consistent roasts every time.
We’ve partnered with various manufacturers that operate around the globe under a strict set of guidelines both on a local and corporate level so that when you shop with us, you will be able to select from the highest quality coffee roasters and coffee equipment available on the market.
Whether you are a coffee enthusiast or a small business owner, you're sure to find whatever so you have the perfect roast you've been looking for.
Any questions or concerns? Please call us at (312)-298-9262 or email us at support@coffeeroastco.com and a member of our professional support team will be in touch with you as soon as possible.
CoffeeRoast Co. will ship orders as soon as possible in the order they are received. If you purchase multiple items, they will be shipped to you based on lead time and availability. This way you get as much of your order as soon as possible, which means that your order may come in separate packages, especially if you order products from different brands.
We will pay shipping for products returned due to product defect, misrepresentation, or false description. Afterward, we will initiate a full reimbursement should you decline an offer to replace the item with the same item of equal value and assured quality.
Order Confirmation:
As soon as you place your order with CoffeeRoast Co. you will receive an order confirmation e-mail. This means that your order has been logged in our system and your credit card has been pre-authorized for the purchase. We then work with our partners to confirm and prepare your order for shipment. If any item you order is on backorder or unavailable for whatever reason, we will cancel the credit card authorization and duly inform you via e-mail.
Order Shipment:
Orders are shipped within five business days from the date you place your order unless specified otherwise on the product page. The product page will contain the most accurate estimate on shipping and lead times. Shipping and lead times provided on the product page are our best estimates based various factors including order volume, information from our partners, shipping issues, etc., and may vary due to these factors.
You will receive an email containing the tracking information of your order after the order has been shipped to your location. If you do not receive tracking information from us within seven business days of the lead time specified on the product page, feel free to follow up with us at support@coffeeroastco.com.
Damages:
We will take full responsibility for any obvious damage to your product caused by packaging or delivery of an already defective product. Please carefully inspect the packaging of your item(s) when they arrive, if you notice any damage or defects, you should document them when signing for delivery. If the item(s) contained in the package arrives damaged, please send photos to support@coffeeroastco.com, and we will process an insurance claim on your behalf.
Returns and Cancellation Policy:
We back all our products with a customer satisfaction guarantee, so we've created a fair return and cancellation policy.
In most cases, once the order is processed, it is final and not cancellable due to the larger nature of these products. Requests for returns/exchanges after the item has been delivered will be evaluated on a case by case basis. Any return request is subject to an administrative and cancellation fee equal to 10% of your order with a minimum of $35.
Before returning any product, you MUST obtain a return authorization from a Coffee Roast Co. customer service representative. We can only process AUTHORIZED returns for items.
To make a Return or Exchanges:
Return or exchanges request submission must be within 14 calendar days upon receipt of shipment unless noted otherwise on the product description page. Your return must be in original packaging and unused.
We encourage using USPS flat-rate shipping in returning products to receive a shipping expense refund. Buyers must ensure all returned parcels delivery receipt AND signature confirmation. We highly recommend insuring your parcel as we cannot issue a refund for an item that we do not receive back should it get lost/damaged during transit.
Refunds:
Should an item be returned because it was defective, misrepresented, not as described, etc., CoffeeRoast Co. will issue a full refund and will reimburse the customer for all shipping expenses associated with the return.
Please allow 5-10 business days from the time the returned item is received to process a refund. Refunds will only be issued to the original form of payment that you used when placing your order.
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At CoffeeRoast Co., we ensure that you get the absolute best prices for coffee roasters, all while ensuring the highest quality. As always, high-quality roasters do not come cheap, but we ensure that they are reasonably priced using our exclusive contracts with the best coffee roaster manufacturers.
We want you to be able to make your purchase with us in confidence. Putting our money where our mouth is, we offer you a price guarantee on all orders. If you find out within six months from your purchase of an item from CoffeeRoast Co. was offered at a lower price than us from the time of purchase, we will refund the difference.
To get a refund, all you need to do is e-mail us a link to the product on our website and the same product on our competitor’s website within six months from the date of your purchase, and we will process the refund accordingly.
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