Assuming you're talking about the Cuisinart DGB-625BC Grind & Brew Thermal Coffee Maker: There aren't many parts to this coffee grinder, so taking it apart shouldn't be too difficult. Start by unplugging the coffee grinder from the power outlet. Next, remove the bean hopper lid and any beans that may be left inside. There are two screws on the back of the grinder that need to be removed in order to take off the grind chamber cover. After removing these screws, lift off the grind chamber cover and set it aside. You should now have access to the grinding blades. Be careful when handling these blades, as they are very sharp. To clean the grinding blades, simply wipe them down with a damp cloth or brush. Once you're finished cleaning, reassemble all of the parts in reverse order and your coffee grinder should be good as new!