Mountain Water Process Decaffeination (source: Descamex  - https://en.descamex.com.mx/copia-de-proceso-mw):

It all begins with a detailed physical / chemical analysis performed in order to determine optimal conditions, then we steam the beans and prepare them previous the extraction.

We extract the caffeine under controlled conditions of flow, temperature, pressure and vacuum, using a water based saturated solution of solid soluble obtained from the coffee beans.

After the extraction takes place we dry gently through our triple drying system and we end up polishing the coffee beans.