There are several kitchen cupboard products that can be used to kill moss, including:
Vinegar: Vinegar is an acid and can be effective in killing moss. Mix equal parts of vinegar and water and spray it on the moss. Leave it for a few hours, then scrub the moss away with a brush or a pressure washer.
Baking soda: Baking soda is an alkaline substance and can be used to neutralize the acidity of the moss. Mix 1-2 cups of baking soda with 1 gallon of water and apply it to the moss. Leave it for a few hours, then scrub it away.
Salt: Salt can also be effective in killing moss. Mix 2 cups of salt with 1 gallon of water and apply it to the moss. Leave it for a few hours, then scrub it away.
Bleach: Bleach is a strong disinfectant and can be used to kill moss. Mix 1 part bleach with 10 parts water and apply it to the moss. Leave it for a few hours, then scrub it away.
It's important to note that some of these products can be harmful to plants, animals, and humans, so be sure to use them with caution and follow the instructions carefully. Also, it's a good idea to test a small area first to make sure the product doesn't damage the surface you are treating.