You should use a filter with a reusable K cup for easier cleanup but you don't have to use filters with the reusable K cup if you don't want too.
The coffee turns out the same with or without a filter unless you have really find coffee grinds and need a filter to prevent the coffee grinds from getting into your coffee.
To make reusable K cup coffee stronger use a darker roast coffee or if there's room add more coffee grounds to the reusable K cup.
Use freshly roasted coffee beans and grind your own coffee fresh at home.
When using reusable K cups you put 1 to 2 scoops of coffee grounds or 1 to 2 tablespoons of medium to finely ground coffee in the reusable K cups.
A reusable coffee pod can be used for up to 1,000 times although some reusable coffee pods can be used a bit longer.
If you take good care of and clean your reusable coffee pods it can last longer.
When choosing ground coffee for your coffee pods, look for medium-roast beans or medium roast coffee grounds as they work best with reusable coffee pods.
Also, make sure the coffee is ground to the right consistency as a fine-medium grind or an espresso grind will ensure a good brew.
Fill the reusable coffee pod with your desired amount of coffee grounds.
Make sure to use fresh, high-quality coffee grounds for the best coffee flavor.
Place the reusable coffee pod into your coffee machine and follow the same steps as you would with a single-use coffee pod.
After your done with the reusable coffee pod dump the grounds out and rinse the reusable coffee pod out under some running water and allow it to dry.
Medium grind coffee is the best for your Keurig coffee machine.
Medium grind coffee will produce a cup of coffee that is not too strong or too weak.
If you're using coffee beans grind your coffee beans at home to get the best flavor and consistency.
Grind your own beans for the best cup of coffee you can get.'