Can you make marmalade in an unlined copper preserving pan?

Yes, you can make marmalade in an unlined copper preserving pan. Copper pans are Excellent for preserving because they conduct heat evenly, which helps prevent scorching and allows for precise temperature control during the cooking process. However, it's important to monitor the acidity of the fruit used, as prolonged contact with copper can lead to metal leaching, which may affect the flavor and safety of the marmalade. Using a lined copper pan or ensuring the marmalade is consumed promptly can mitigate these concerns.