Thank you for your feedback! We truly value your experience and would like to address the concerns you’ve raised: 1.Lid Safety: The three locks ensure the lid stays secure during operation. As long as the locks are used correctly, the lid won’t open. 2.Safety Cut-off: We do offer models with a safety cut-off, but this feature is not included in your purchased version. You can consider upgrading if needed. 3.Moving the Machine: The user manual and video clearly show that moving the machine helps with better grinding performance. 4.Material Heating: The heat generated is due to friction from the high-speed blades, which is normal. Allow the machine to cool down after prolonged use. We appreciate your attention and suggestions regarding our product, and we will continue to optimise our design for a better user experience.