तपनीयमुज्ज्वाल्य रागत्रिभागं दद्यात्पीतरागं भवति ॥ कZ_०२.१३.५३ ॥
tapanīyam ujjvālya rāgatribhāgaṃ dadyāt pītarāgaṃ bhavati
Pagkatapos painitin ang pinong ginto (tapanīya), dapat magdagdag ng tatlong bahagi ng halong pampakulay (rāga); nagiging dilaw na makintab (pītarāga) ito.
It constrains discretionary variation by artisans, making output predictable and enabling audits of material consumption.