Skip to main content

Sorry, Starbucks! You’ll Soon Be Able to Roast Your Own Coffee with Roest

Roest Coffee Roaster
Roest Coffee

You’ve (nearly) mastered home brewing and nobody wants to drink your “craft” beer anymore, so switch to roasting your own coffee. Like making beer, it’s an art form. And all you need to be a regular Tim Starbucks is this techy sample roaster, Roest.

As a functional toy for specialty coffee lovers, Roest reduces the workload of sample roasting, saving you time and increasing the quality of home-batches. I had a roommate who would roast his own coffee beans in a cast iron pan every Sunday and it reeked, filling the apartment with smoke. The coffee also tasted terrible. Don’t be like him. Use Roest (and be the best roommate ever).

The interface is super user-friendly and includes both a manual mode to experiment with different roasts and preset modes so you can save roasts you love.

Roest Coffee Roaster
Roest Coffee

Coffee — for you drive-through addicts — begins as green beans that don’t smell. During the roasting, flavors come out (much the same as with that malted barley you were buying in bulk for the aforementioned homebrew beer). Variables in the roasting process affect innate aroma compounds in the beans, and that’s why the unique flavor of a cuppa joe is dependent on its roast.

The Roest machine is not only gorgeous but was made for Jedi-level coffee makers. Still, it’s intuitive enough for you and me. Users can adjust three main roasting variables to create their own coffee tastes, including:

  • Environmental Temperature Profile
  • Bean Temperature Profile
  • Power Profiles

There’s also a fan profile you can play with. Roest automatically tracks these changes to save your roast profiles. At the end of the day, if all your roasting experiments taste nasty, a manual override can take full control, removing the guesswork.

Either way, literally watching your precious beans roast through a self-cleaning glass window will get you feeling all kinds of paternal pride.

Five roasting profiles can be downloaded onto the Roest machine itself, but via Wi-Fi, you can store an unlimited number of profiles in a Roest web portal. Yep, the roaster connects to Wi-Fi.

Roest Coffee Roaster
Roest Coffee

A roast of about 100 grams takes a minimum of three minutes to finish (what experts call the “first crack.”) Then you’re ready to collect your coffee beans, grind them, and make these fancy coffee drinks. Or drink it black because hot damn it will taste rich. Since these are sample batches, use a French press. (Here’s how if you’re totally lost.)

The Roest’s roasting chamber is patented with a fixed drum and dual fans for back-to-back roasting. The machine is about the size of a home coffee maker and fits on your counter. But the best part? Roest has a built-in ventilation system with a single exhaust system, for a smoke-free experience.

While Roest is not available yet, you can sign up and reserve your own. Right now, a Roest machine is going to run you 5,500 euros, or around $6,100. You can reserve your Roest here.

Jahla Seppanen
Former Digital Trends Contributor
Born and raised off-the-grid in New Mexico, Jahla Seppanen is currently a sports, fitness, spirits, and culture writer in…
The 10 best rosé wines that everyone should drink
It's time to finally try rosé
Rose wine glasses

Rosé rules -- no ifs, ands, or buts. You’ve most definitely seen dudes drinking rosé, with the pink wine sold in forties. Chances are, you’ve heard the term “brosé” at least once or twice in your life. Heck, people are cooking with rosé. Can you believe that? It's a sweet wine worth talking about.

All this talk about the drink prompted us to go on a quest to find the most exceptional ones this rosé season. With plenty of great options in the market, we chose to narrow down our list to these best rosé wines for your next hot date, guys' night, or solo Netflix binge. Still reluctant to try this magical wine? We listed seven reasons why you should start drinking rosé.
Best rosé wines

Read more
How to start your own home bar: the essential spirits
Home Bar

When you start getting into cocktails, drinking them is only half the fun -- making them is part of the appeal too. If you start making your own drinks at home, you'll soon find that you can often create better or more interesting drinks than what you're served in most bars. And even better, making drinks for other people is a great way to try out new combinations, learn about spirits, and make your friends and family happy too.

However, moving beyond the simple spirit plus mixer style of drinks which most people make at home and into the world of cocktails means that you'll need a wider array of spirits on hand than you might be used to. It can take some time and research to build up a well stocked bar, and choosing high quality spirits isn't a cheap endeavor. It's worth it, though, for the pleasure of being able to try out classic cocktail recipes and experiment with making up your own creations too.

Read more
You’re overlooking the most important ingredient in your cocktail
Steel Hibiscus cocktail.

When you list off the most important parts of making a good cocktail your mind likely goes immediately to good ingredients: quality spirits, freshly squeezed citrus juices, and well-matched mixers. You might also consider the importance of using the right tools, like getting a proper mixing glass so your stirred drinks can be properly incorporated, or a good strainer so that there aren't little shards of ice in your cocktails. And then there are the fun additions like elaborate garnishes, bitters, or home-made syrups which can add a personal touch to your drinks.
All of those things are important, absolutely. However I think there's one ingredient that can make or break a good cocktail, and it's something many drinkers don't ever stop to consider. It's the humble but vital ingredient of ice.

Why ice is so important
In mixed drinks like a gin and tonic or a screwdriver, ice is added to the drink primarily to chill it down to a pleasing temperature. That's a topic we'll come back to. But in cocktails which are shaken or stirred, ice is far more important than that. Cocktails are typically composed of between around 20 to 30 percent water, and this water comes from the ice used in the preparation process.
When you stir ingredients in a mixing glass or shake them in a shaker with ice, you are chipping away small pieces of the ice so that it dissolves and blends with your other ingredients. You might imagine that water doesn't make much of a difference to taste, being tasteless itself. But it's vital in opening up the flavors of other ingredients. That's why many whiskey drinkers like to add a dash of water to their whiskey when they drink it neat.
If you're ever in doubt of how important water is to cocktails, it's worth trying to make a drink with no ice. Even if you mix up the ideal ratios for a drink that you love and put it into the freezer so that it gets to the chilled temperature that you usually enjoy it at, if you sip it you'll find that your drink tastes harsh, unbalanced, and incomplete. Even for special room temperature cocktails like those designed to be drunk from a flask, you'll generally find water being added at a rate of around 30%.
When you make your cocktails you should be sure to stir for a long time – around 30 seconds is a good start – or to shake for a good while too – I typically do around 12 to 15 seconds – in order to melt enough ice to get plenty of water into your cocktail. Despite what you might imagine, this won't make the cocktail taste watery but will rather make the flavors stand out more as well as often improving the mouthfeel of the drink. A good rule of thumb is to mix or shake until the vessel is cold to the touch. That means your ingredients are sufficiently incorporated with the ice.

Read more