The History of Refrigerators and Ice Cube Trays

The History of Refrigerators and Ice Cube Trays

Home Appliances, Power Equipment
Before the invention of modern refrigerators, people had to keep their refrigerators closed and rely on ice deliveries. Ice was used to preserve foodstuffs and they were sometimes called iceboxes. Before the 1920s, the ice delivery man would drop blocks of ice into the refrigerator. To keep the ice from melting, people had to keep the door shut. Today, refrigerators can use ice cube trays to keep food cold. Hydro-fluorocarbons Hydro-fluorocarbons (HFCs) in refrigerators and air conditioning units are highly toxic gases that contribute to global warming. EPA regulations will limit the use of HFCs in refrigerators and air conditioning units by 85 percent over the next 15 years. The new rule follows legislation passed by Congress last year. It will also restrict the imports of HFCs to the United…
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