You can use common table salt for this method. Keep in mind that adding a small amount of salt to your coffee will not make it taste more salty or ruin the underlying flavors in the coffee.
If you tend to drink your coffee black, but want to try this method, you can try adding a spoonful of cream or milk and taste the coffee to see if it is to your liking. You may then add more cream or milk if the coffee is still too bitter.
You can use white sugar or brown sugar for this method. Cane sugar tends to have less additives so it may be the better option.
If you brew your own coffee at home, the bitterness of the coffee will depend on the type of bean you use, the roasting method used on the beans, and the amount of beans you use. You may need to play around with your drip coffee method to find a brew that is not too bitter.
You may need to experiment with the grind size for your coffee depending on what type of brewing method you use. Finding the right grind size may improve the overall taste of your coffee, including the level of bitterness in the coffee.
It may also be good to get into the habit of letting the water sit for a few minutes in the kettle so it can reduce in temperature before you pour it over your coffee grounds. Stirring the coffee grinds rapidly with a spoon once you have poured the water over them can also improve the flavor of the coffee.
You should also let your brewing equipment air dry so it is clean and ready for use the following day.
You may also try to avoid having leftover coffee by measuring out the water by cup when you brew the coffee. For example, if you are planning to have two cups of coffee, one for you and a friend, you may measure out enough water for two cups exactly so you do not have to worry about leftover coffee sitting in the press.
Look for medium roast coffee at your local coffee shop. Or buy medium roast coffee beans and brew your own coffee at home to your liking.
