How To Clean Ninja Coffee Maker Without Vinegar. For daily cleaning, simply remove all of the parts from your ninja coffee bar and wash them in the sink with warm water and dish soap. The same process can also be used with a solution of equal parts lemon juice and water.
An ideal ratio of 1: If your machine has a glass carafe, make sure that the carafe has cooled to room temperature before running it underwater. The same process can also be used with a solution of equal parts lemon juice and water.
Once you have cleaned the filter and carafe, the hardest part is done.
Now you have to clean the outside of the ninja coffee maker. If you prefer to purchase a ninja descaling solution, then you could use that instead of this vinegar solution. Prepare a solution of water and vinegar in the ratio of 2:1 for descaling the coffee maker. 2 must is required to clean a ninja coffee maker.