If you still have the instructions manual, read it before cleaning your coffee maker. Most coffee makers can safely be cleaned with a vinegar/water mixture, but it's always a good idea to check first. If you don't have the instructions manual, try looking up your model online. You may be able to find an instructions manual on the Internet. Many people keep the reservoir lid closed. However, it's a good idea to leave it open when not in use. This will help dry out the machine, preventing mold and bacteria from growing in a moist environment.
अपने इन्सट्रक्शन के मेन्युअल को पढ़ें: कॉफी मेकर के अंदर के बर्तन (reservoir) की लिड ओपन रहने दें: