What is a notable domestic technology developed in the 1920s?

The electric refrigerator stands out as a notable domestic technology developed in the 1920s because it revolutionized how households stored and preserved food. Before this invention, people primarily relied on iceboxes or traditional methods to keep food cold, which had limitations and required regular ice delivery. The widespread introduction of electric refrigerators made it easier for families to maintain fresh produce, dairy products, and meats for longer periods, thereby improving food safety and reducing waste. This innovation not only changed daily cooking and eating habits but also had a significant impact on food distribution, as it became more feasible to transport perishable items over longer distances. The electric refrigerator became a staple in modern kitchens, symbolizing the advances in household technology during the early 20th century.