Use this on the glass.
How to clean french door windows.
Use a second dry microfiber cloth to wipe them completely dry.
If the grille does not move it is glued and is not removable.
Tip the glass door from side to side and turn it over periodically to make sure the alcohol is reaching all parts of the inside of the glass.
I tried in vane to clean my large windows with windex and various other window cleaning products and rags cloths paper towels nothing worked.
If the grille moves it is removable.
Try taking a squeegee and running a little dish washing liquid along about half its length.
Squirt the alcohol through the upper tube to fill the glass void.
Put about half a cup of white vinegar in half a bucket of warm water and use a microfiber cloth to wipe them down.
There s plenty of glass on exterior french doors and it can become dirty very easily especially in fall or winter.
Attempt to pull the grille slightly off the glass.
I would encourage you to get microfiber window cleaning mop and cotton rags for your window cleaning and also have a good squeegee you may find out that the soft rubber is easier to clean windows.
A good scrub brush or toothbrush and some dish soap will help you quite a bit when it comes to the frame part of the french doors.
Grasp the window grille at its center on the window.
Attach a dental waterpik to a container of glass cleaning alcohol.
A how to video to explain how to clean squeegee french cut up windows without wanting to pull your hair out.
You will need some windex or a mixture of vinegar and water to clean the window parts.