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How to use a keurig machine
Fill the water reservoir.
Lift the lid off the water reservoir, located either on the left side or at the back of your machine. Depending on your model, either pull out the reservoir from the left side of the machine to fill it, or use a cup or mug to pour water into the back reservoir to the desired quantity.
Don't fill water to above the line on the reservoir that says " max fill. " it's best to use filtered or spring water, as hard water from the tap may leave mineral buildup in the machine over time.