Clean Coffee Pots and Percolators by filling them with water, adding 4 tablespoons salt, then bringing the salt water to a boil. Let the hot water sit and cool, then pour it our and rinse it well.
Clean a coffee maker by pouring 1 cup white vinegar in the basket and 8 cups water. Turn on the coffee maker and let it brew. Turn it off and let it stand for an hour, then turn it back on. Let it finish brewing the pot of vinegar and water, then empty the pot, rinse it out, and fill the reservoir with plain water. Brew the pot of water. Empty, rinse, then brew another pot of water.
Boil white vinegar in tea kettles and coffee pots to clean out the mineral deposits. Let the vinegar cool before pouring it down the drain. Rinse with clean water.
Clean your glass carafe after every use as you would a dish- otherwise oils can build up and cause the coffee to become bitter. Once a week, run a cycle with white vinegar instead of water, with no coffee, then follow that with three or four cycles of hot water.
For coffee grinders, wipe them out after each use with a soft, damp cloth. Wash the top as you would a dish, once a week.
Following the above suggestions will ensure you of having a chemical and mineral deposit- free, great tasting cup of coffee.