I got a Keurig model 300 for Christmas. I've tried different regular coffees and also flavored. They all make a bitter cup of coffee. I bought a basket at Walmart for about 5 or 6 dollars. You can use your own coffee in this. It does not work. I was told that Target has a basket that works with all the keurigs for about 10.00. I'm going to try this next. Also will try the pinch of salt. Thanks for the idea.
Sandy