Guitar Maintenance and Care Guide First, let us stress the importance of protecting your guitar from too much humidity or dryness. An acoustic guitar is very sensitive to high tension caused by string-pull. Your guitar is made of wood, which is sensitive to humidity. However, if the instrument is properly adjusted and well maintained, it should last a lifetime. Everyday common sense will take you far. Invest in a good hard-shell case to protect your instrument from mechanical damage, humidity and sudden changes in temperature. A guitar-stand is also an inexpensive investment. It will keep your guitar from falling down and it also looks good on stage or in your living room. Always try to keep the instrument in a normal temperature. Slightly over or under room temperature is ideal. Be aware of rapid temperature changes. Do not leave the guitar near radiators and heaters. Do not leave it in a car on a hot summer day or in the dead of winter. If your guitar does get subjected to extreme temperature let it come back to room temperature gradually. Do not open the case too quickly.