Please stick it close to the blade for best performance before use 3-Check the bottom gear. If the gear is loose, tighten it counterclockwise 4-Don't run the mixer for more than 4 minutes at a time. Because high-speed rotation will generate a lot of heat, which will not only accelerate the wear of parts but also cause the mixture to scorch due to long-term heating 5-Don't add components beyond the "maximum" line to avoid overflow 6-Please ensure that the blade is in the correct position and locked. If the mixer starts to leak, please replace it with a new washer 7-Please check your mixer regularly.