Before sterilising the casks and kegs prior to being filled with fresh product, any beer remaining in the container is emptied and collected in a trade approved (ullage) vessel. This allows the weight, and therefore the volume to be recorded and any beer duty previously paid can then be re-claimed.

With a current maintenance and calibration contract in place with Precia-Molen, Marston’s placed an order for the company to upgrade the current system. Precia-Molen supplied a new stamped ullage ‘return’ vessel and replaced all the indicators on the holding vessels. A platform scale was also supplied.