In India, fireworks are totally hand made unaided by power.
Manual labour can result in quality variance.
This is vigilantly guarded against at Ayyan Nadar Fireworks. The firm employs six chemists specially trained in products on a daily basis. All inputs chemicals, paper and board are checked to see whether they meet the quality specifications listed by the company. It is germane to state that the company has a full fledged lab with four technical staff under a quality control supervisor to check all inputs. The company conducts regular quality control meetings wherein our suppliers of raw materials and factory staff exchange views and sort out problems if any.