What should be noted about rice holding and energy use?

Please verify the following points and require itemized written supplier responses:（commercial rice cooker rice-cooker-insulation） Long holding affects texture and consumes energy. For volume service, cook in batches and use rice warmers rather than reheating repeatedly. Avoid frequent opening and stop using units with odors, burnt rice or abnormal temperatures. Define capacity, accuracy, materials and operating environment before requesting quotes on a uniform basis. Request specification sheets, test reports, certificates, maintenance manuals and spare-part lists. During acceptance, verify appearance, dimensions, functions, safety protection and packaging, and keep test records. Do not compare unit price alone; include customization, freight, spare parts, after-sales support and downtime risk. Keep written records of inquiries, confirmations, FAT, acceptance and warranty commitments.