Mouth rim is a table ware quality issues perceived by customer in a very sensitive way. Investigation and evaluation of importance of main technological aspects were made in order to find optimal process set up ensuring high mouth rim efficiency. Process data, light microscopy and glass rim resistance against mechanical load were applied as methods allowing analysis of rim impact strength. Planned experiment were proposed to quantify the effect of parameters like glass wall thickness, set up of cracking off, edge melting and toughness process. Influence of glass fining process causing reboil vivible only by light microscopy was found as one of the most important issues. Optimal process was proposed in both directions technological set up and statistical process control.
