Decorative ceramics are characterized by fast firing cycles with values below 30 minutes in some countries. Of course this is not the standard value, but it gives an idea of how well adapted these kilns are to fast firing. At the same time, being one of the main polluting points in decorative ceramics manufacturing process, lots of efforts have been dedicated in order to reduce CO2 emissions, as well as some other highly pollutants (NOx, HCl, HF, heavy metals, Sox, VOCs, among others).
The next challenge in the horizon will be automation, though a lot of improvements have been done in order to bring self-regulation and high optimization of the full firing process.