greaseproof paper
Greaseproof paper is a non-edible kitchen tool and contains no nutritional value; it is food-safe when used as directed for cooking temperatures below the manufacturer's specified maximum.
About
Greaseproof paper, also known as parchment paper or baking paper, is a specially treated tissue paper designed to resist moisture and grease penetration. Manufactured from wood pulp, the paper undergoes a silanization process (coating with silicone) or, in older formulations, a sulfuric acid treatment that closes the pores of the fiber structure. This creates a non-stick surface that prevents fats and oils from soaking through, making it essential for baking and food preparation. Modern greaseproof papers are typically food-safe and heat-resistant up to 200-220°C (392-428°F), depending on the grade and manufacturer.
Culinary Uses
Greaseproof paper serves as a versatile kitchen tool across baking and food preparation. It is layered between pastry doughs, cookies, and baked goods to prevent sticking and simplify removal from baking sheets. The paper is widely used to line cake tins, muffin cases, and biscuit trays, reducing the need for greasing and ensuring even browning. In savory cooking, it functions as a protective barrier when baking en papillote (en parchment), steaming delicate proteins and vegetables while retaining moisture and flavor. It is also employed in confectionery work for cooling freshly made sweets and preventing adherence during storage.