What is the best way to: Clean old jewelry.

Pick from: [-] Line bowl with foil, place jewelry, then fill with hot water and a spoon of laundry detergent for 1 minute.; [-] Line bowl with foil, place jewelry, then fill with cold water and a spoon of laundry detergent for 1 minute.;
Answer:
Line bowl with foil, place jewelry, then fill with hot water and a spoon of laundry detergent for 1 minute.