Quartz Detergent Liquid 1L x 12 Used in conjunction with the blank filter to clean the group and valve behind. Can also be used overnight with water to soak and clean your filter holder head. This is a liquid form of coffee machine cleaning solution. The main difference of using this over powder or tablets is that you reduce the risk of blocking your jets with powder or tablets that may not desolve. It is common for machines to block up from both coffee and cleaning chemicals but using a liquid form of the solution will prevent your groupheads from getting blocked. Use this in similar quantities, so if you previously used one tablet now you will use one teaspoon. We highly recommend using this over other cleaning chemicals for backflushing all coffee machines, even bean to cup machines.
