The use of a very dry mixture is a very beneficial factor for the machines as they work much better with a drier concrete.
This implies that during the drying process you must take into account that if the mixture lacks water we will have a concrete that does not react so we will not get the maximum resistance.
For that, we will have to have a controlled drying by temperature and humidity with which we will be able to save between 5 and 10% of the amount of concrete, therefore reducing the costs of the blocks.