Getting the white back from freezer water/ice cube dispenser area AND refrigerator door handles.

I am looking for a solution to get the yellowing (and brown from where the light switch is) white again. Any solutions

ZLINE Kitchen and Bath 36 in. 3-Door French Door Refrigerator with Internal Ice & Water Dispenser with White Matte Panels RBIV-WM-36 - The Home Depot

GE 33-inch, 23 cu. ft. Side-By-Side Refrigerator with Water and Ice Di

How to clean textured Refrigerator door

Reviving a garage sale find, cleaning an old roaster

524L French door fridge with ice and water (EHE5267SA)

How to Clean Appliances in a Few Simple Steps

LG 22.1-cu ft Counter-depth Smart French Door Refrigerator with Dual Ice Maker (Fingerprint Resistant) ENERGY STAR in the French Door Refrigerators department at

Clear Ice Machine Indoor Gourmet Cube Ice Maker - Sapphire Appliances

How Ro Remove White Build up on Water Dispenser

How Ro Remove White Build up on Water Dispenser

LRFWS2906S by LG - 29 cu ft. French Door Refrigerator with Slim Design Water Dispenser

25 cu. ft. Refrigerator with Water Dispenser in Stainless Steel (RF263BEAESR)