More information: Chiang Liang Kok et al, Innovative EMD-Based Technique for Preventing Coffee Grinder Damage from Stones ...

These grinders are used to refine (or grind down the size of ... Today, an Indian 100-kilogram stone grinder costs about ₹1 lakh, while a roll refiner costs ₹30 lakhs. Clearly a deterrent ...

For cafés and commercial coffee producers, stray stones spell trouble. When they enter the grinding mechanism, they can severely damage the grinder’s precision-engineered cutting discs known as ...