Using a bolder roast is one way to get more flavor out of a K-Cup brewer. Here are a few other tricks you can try to boost the strength of your brew.
#1: Use less water
Most single-serve brewers have a range of cup sizes. Since they all brew from the same size of K-Cup, this changes the strength along with the quantity.
The smallest serving available will have the most flavor. For most K-Cups, a 4- or 6-ounce brew will taste the best. If you want more coffee than this, use two pods for each cup, brewing each pod on the lowest available setting.
#2: Switch to a reusable filter cup
A reusable filter lets you control how much coffee you use, something you can’t do with a sealed K-Cup. It also lets you pack the coffee in, a process known as tamping in the coffee world. By removing the air between the grounds, the water will drip through more slowly and extract more flavor.
Another advantage of a reusable filter is that you know you’re using fresh coffee. Many of the volatile compounds in coffee dissipate within 15 minutes of grinding. Coffee in K-Cups is pre-ground by default and doesn’t have as much flavor as it did in whole-bean form.
#3: Double-up the cup
Tamping coffee is one way to extend the water contact time. You can take this even further by putting a used and cleaned K-Cup body inside the reusable filter. This creates a two-chamber system, extending the brewing time for a richer cup.
To do this, remove the foil from a used K-Cup and cut off the upper ridge. Next, slide it down inside the reusable filter and load it up with your ground coffee of choice. The hole in the bottom from its first use will let the water into the second chamber in a slower, more controlled stream.
#4: Clean your machine
If you’ve noticed your Keurig coffee isn’t as strong as it used to be, it’s probably time to descale your coffee maker.
The minerals in water are left behind in the lines as it flows through. This builds up into a white, chalky material known as scale. Over time, that build-up can clog the lines and lower the water pressure, resulting in a weak cup.
A coffee machine also provides the perfect breeding ground for bacteria and mold. These can also clog up the works if they’re growing in the lines and add off flavors into the brew.
You can fix both these problems by cleaning your coffee maker. The easiest way is to fill the reservoir with a mix of half white vinegar and half water. Brew it through, then brew a couple of passes of pure water to remove the vinegar taste.
Most people don’t clean their coffee makers nearly as often as they should. Ideally, you should descale your machine every 3 months, and more often if you have hard water. Regular maintenance extends the life of your coffee maker along with making better-tasting coffee, so it’s worth the effort.
For more information please see the list of Best dark roast coffee pods