Review: K Cup Injector for Keurig Brewers - Reuse Your K Cups

The Handmade K Cup Injector and reused K Cup.

The K Cup Injector allows you to reuse your spent K Cups by refilling them with ground coffee, and then using the K Cup Injector top to seal the K Cup make a cup of single serve coffee. We've been testing out this home-made device for the last week purchased on Ebay, and it works surprisingly well. "Well" however means - a bit of a mess when making a cup of single serve coffee, because with each use you have to clean out coffee grounds, rinse the spent K Cup, and also wash the K Cup Injector.

Now we understand mess for the sake of being a little more eco-friendly, and the K Cup injector does hit the spot. In a way, it's very much like the My K Cup Reusable Coffee Filter, allowing you to just use ground coffee, and now throw out plastic K Cup after plastic K Cup. But there is a price, as we said mess and also cross-contamination of the coffee from the previous cup. Unlike the My K Cup Reusable Coffee Filter, you'll be using the same paper filter with the K Cup, and you'll also have to match the extra-bold K Cup filter or the regular K Cup filter with the grind you want - etc.

The amount of variable here is also staggering because of the grind, the filter paper in the K Cup, and the amount of water you want to use in each cup of single serve coffee using the Keurig model you have. There's also a claim of better extraction with the K Cup Injector, which you can read about in our earlier post here. We didn't find extraction to be any worse or any better given our testing with both the K Cup Injector and the My K Cup Reusable Coffee Filter.

Here's how the K Cup Injector works:

The K Cup Injector comes ina box with a menacing cartoon.
The inventor may have had too much caffeine.

You'll get instructions and the K Cup Injector top.

The spray head has a bunch of wholes for better extraction.
We think the extraction is about the same as the My K Cup Reusable Coffee Filter.

A little more in depth look a the head of the K Cup injector.

You'll have to take the foil top off a used K Cup and fill it with your favorite coffee.

The finished product - a K Cup made from the top of the
K Cup injector and the re-used K Cup.

You then put the K Cup Injected K Cup in the Keurig brewer of your choice.

The brewed cup of K Cup Injected Coffee.

Final Thoughts on the K Cup Injector

Pros

• Re-uses K-Cups
• Reduces cost per K Cup like the My K Cup Reusable Coffee Filter

Cons

• Quality of K Cup Injector is a okay - but it's not a polished product yet
• Lots of mess when making a cup of single serve coffee

We think you'll enjoy getting a gadget like this for your Keurig Elite B40 Brewer, Keurig B50, Keurig Special Edition Ultra Elite B60, Keurig B70 Brewer, Breville BKC600XL Gourmet Single Cup Brewer, and other Keurig K Cup brewers if your a bit of a tinkerer and single serve coffee hobbyist. We don't recommend this for the feint of heart, as the results can be mixed.

The coffee produced using the K Cup Injector was either on par with the My K Cup Reusable filter, or we didn't get a good extraction from cup to cup. We did get one grind and one set of consistent coffees after a bunch of bad cups. You're going to need to get motivated to find your sweet spot if you use the K Cup Injector, and be prepared for a lot of trial and error just like with the My K Cup Reusable Coffee Filter.

Right now you can purchase the K Cup Injector only on Ebay.

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