molerán
-they will grind
The word molerán is the future form of moler in the third person plural.
See the full moler conjugation

moler

El viaje continuará en la granja/atelier de los hermanos Guillén, donde un grupo de chocolateros tostarán y molerán a mano el cacao y fabricaran chocolate para su disfrute, a la vez que les invitaran a formar parte del proceso.
The trip will continue at the Guillen brothers farm/atelier where a group of chocolatiers will roast, hand grind cocoa and make chocolate for your enjoyment and will ask you to participate in the process.
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