When sourcing a milk candy machine, you must prioritize production capacity (kg/h) to match your business scale. Key components include the cooking system (vacuum or atmospheric), the cooling table, and the forming/cutting unit. Ensure the machine uses food-grade Stainless Steel 304 or 316 for all contact parts to prevent contamination. Additionally, look for PLC control systems (e.g., Siemens or Delta) for precise temperature and speed management, which is critical for maintaining the texture and flavor of milk-based confectionery.