Review on ☕ GoodCups 4 Reusable K Cups: Compatible with Keurig K-Slim, K-Duo, K-Classic, K-Elite, K-Select, K-Cafe, K-Compact and More - Refillable Coffee Filters for 2.0 and 1.0 Brewers by David Elam

Made in China, these reusable K-cup filters are said to be 100% BPA, LEAD and DEHP free. They are purple "plastic" with a gold mesh bottom and sides. They are reported to fit Keurig 2.0, K200, K250, K300, K350, K400, K450, K500, K550, K560 and all 1. After our K200 failed we checked the Keurig (machine) ratings and then went to the K-50 because it was Kerig that seemed to have the highest ratings. These filters are perfect for K-50. Simply fill the coffee filter, gently close the top of the filter, place the filter in the Keurig and press the coffee maker button(s). No need to put paper filters in the items as they are filters themselves! Open them carefully, as repeated opening and closing or abrupt opening and closing will eventually break the flexible "plastic" that acts as a hinge. Although they are disposable filters, with proper care these filters will certainly last long enough to recoup their cost. Of course, they're not as convenient as using real K-Cups, because (unless you choose to add paper filters) these disposable filters need to be cleaned of clinging coffee grounds (which need to be scooped out) and then cleaned (which is easy - simply wash in hot, soapy water or squirt a small amount of liquid detergent and then flip under a hot kitchen faucet). I would suggest supporting the outside of the strainer (with light pressure) by lightly "scratching" the inner strainer to remove the used coffee grounds. The permanent filter for K coffee machines is more practical because it is easier to clean (without gentle handling). But even these small disposable cups have their place! We have an old and cheap little coffee pot that we pull out occasionally when we need a full pot of coffee, use regular K cups (many brands included) and now we have these disposable filters in case you want a few cups of coffee and you need to eat our old ground coffee, or if you're temporarily running out of "K" cups. As with any brand of small coffee mug for your brewer, the hot water simply flows through these small filters that contain your coffee. Whether you use a "K" cup, another brand of coffee mug, or these filters, you generally don't get a truly strong cup of coffee. To do this, you actually have to brew your own coffee. However, if you don't have a grease button on your machine and want a stronger cup when using these disposable filters (or "K" cups/cups filled with other brands of coffee), you can use a small sauce spoon to make the to catch the first and last shot of coffee water from the coffee maker, and then pour that less strong coffee into a second (adjacent) cup that can be poured into the kitchen sink. Sometimes I put used coffee grounds in the soil in my garden. K-Cups and similar brands are convenient, but it's certainly better for the environment to either use a real coffee pot that coffee is brewed in, permanent "K" filters that are filled with coffee, or disposable filters that have coffee added to them becomes.