Use a screwdriver to remove all handles and hinges from the cabinet doors. The doors should be completely removed from the cabinet frame. Place all hardware aside.
Place a cloth in a soapy water solution and use it to clean the cabinet. You should remove all the dirt or residue from the cabinet's surface.
Sand the surfaces of the cabinet to remove the primary layer of finishing. Refrain from using an electric sander, as it will alter the wooden cabinet's structure. Simply use regular 150- to 180-grit sandpaper designed for hand sanding. Sand each surface you want to stain, including the inside of the cabinet and both sides of the cabinet door.
Dip the paintbrush in the latte stain and apply a single layer to the wooden cabinet. Let the stain sink in before adding more layers. As the stain dries, its shade or boldness can change, so wait until the original layer has dried before adding another layer. Continue until you have a desired latte shade stain on your wooden cabinets. Let the cabinets dry.
Dip the paintbrush in water and use your hands to clean the brush. Use the same brush to apply a finishing topcoat to protect the stain, if desired. The topcoat will provide protection and shine, but if you prefer the rustic look of the wooden cabinet, do not apply the topcoat.
Use the screwdriver to reattach the cabinet door handles and hinges, once the cabinet is dry. Use the original holes in the wood when you reinstall the hinges and handles.