Vacuum processing extends the shelf life of agricultural products, but it introduces specific mechanical challenges. Sharp edges on cereals like oats and buckwheat cause microscopic tears under negative pressure, while airborne particles compromise thermal seals. This engineering report analyzes these vacuum packaging defects in detail. We explore how advanced materials and a specialized grain vacuum packaging machine can prevent bag puncture. Furthermore, we examine how a Jialong industrial grain packer mitigates grain dust contamination, ensuring flawless seal integrity for bulk processors.