How should burner cleaning interval be evaluated when buying a rotating clay-pot cooker?

Burner cleaning on a rotary claypot rice cooker is driven by three soil sources: carboned nozzle tips, starch slurry boiled over the pot rim, and greasy steam from claypot cooking. A busy outlet that overflows every batch may need nozzle poking every three to five days, while a rice-only, low-fume kitchen can stretch to two or three weeks. At acceptance, ignore the catalogue figure and run a peak-volume batch test. Treat a yellowing flame, lift-off, flashback or falling thermal efficiency as the trigger to clean, and note gas pressure, air-damper position and batch count at that moment for later comparison. Because gas type and pot spacing change coking speed, re-baseline the interval after switching fuel or revising the menu.