I have a very nice Cuisinart Brew Central Coffee Maker DCC-1200. It's about 4 years old. But I bought some off-brand coffee and it just tasted awful, kindy of watery and strange taste. I thought it was the brand.

I bought my regular brand, quality French Roast Maxwell House, but it's still tastes strange -- kind of moldy. I washed out the filter and the plastic holder part under the filter and brewed a pot of hot water and it still tastes that way.

Any ideas?
Vinegar, thanks guys!