The Osma Pro is the latest countertop coffee maker that claims ultra-fast cold brew. How? Through San Francisco startup Osma's patent-pending Harmonic Microcavitation process.

Basically, ice water is recirculated through a high-pressure portafilter, which concentrates the coffee through several cycles in just 90 seconds.

But there is another layer. Harmonics uses controlled acoustic vibrations throughout the process to bring out additional flavors. The combination of these two systems brings out flavor compounds that were previously lost with longer extraction times.

All of this works to produce a very fast cold brew, and in style. The first model of the Osma Pro, built to mimic a classic espresso machine, is a simple, almost brutal design. Simply drop the intake wand into a cup of ice water and wait for the machine to pass through the portafilter and back into the cup. There is no need to fiddle with obscure menus or settings, just the filter, intake, and power button.

The lack of extra features may work against it; with a price tag of $695, the Osma Pro is not for the everyday user. But in a world where anything from chai tea to makgeolli can be made with a home brewer, it's refreshing to see a focus on quality over quantity.

This is certainly one for the cold brew enthusiast, but if you're an over-iced connoisseur, you'll need to hurry. The Osma Pro is the first limited production run, and the first 1,000 units are now available for pre-order.

Whether a new era of lightning-fast cold brew is on the horizon remains to be seen, considering that the OXO Good Grips cold brew coffee maker costs less than $50, which is still a pretty steep price tag for everyday drinking, if early adopters approve, more outlandish scientific projects that turn into high-end coffeemakers may emerge.

While we wait for prices that won't break the bank in the future, we suggest checking out the cheaper options just below.

If you're looking for a cheaper cold brew machine, we suggest checking out the OXO Good Grips cold brew coffeemaker; while it doesn't come close to the 90 second brew time, the shower head design is evenly balanced at a great price It offers premium water dispersion technology that leaves the flavor...

We show you how to make cold brew at home if you want to forgo any mechanical help, or take a look at the best espresso machines for something a little stronger. You'll also find plenty of Cuisinart coffee makers that offer a wide range of brewing settings, and the best Nespresso machines are covered for speedy brewing as well.