Wood was the primary fuel source used in medieval glassmaking furnaces due to its availability and affordability. Coal, natural gas, and electricity were not widely used as fuel sources during that period.

Stained glass was a popular technique used to create intricate patterns and designs on medieval glass objects. It involved the use of colored glass pieces assembled together to form images or decorative elements.

Crown glass was commonly used in medieval stained glass windows. It was produced by blowing molten glass into a large bubble, which was then flattened and cut into sheets.

Clay was the primary raw material used in the production of medieval ceramics. It was mixed with water and other materials to form a workable paste, which was then shaped and fired in a kiln.

Porcelain was a type of medieval ceramic characterized by its white, translucent body and delicate appearance. It was produced using a specialized clay called kaolin, which was fired at high temperatures.

Kiln firing was the primary firing technique used in medieval ceramics production. Kilns were heated to high temperatures using wood or other fuels, and the ceramic pieces were placed inside to undergo the firing process.

Earthenware was a type of medieval ceramic commonly used for the production of utilitarian objects such as pots and jars. It was made from a coarse clay body and fired at relatively low temperatures.

Glazing was the primary decorative technique used on medieval ceramics. Glazes were applied to the ceramic surface before firing, creating a smooth, glossy finish and enhancing the appearance of the object.

Stoneware was a type of medieval ceramic characterized by its hard, non-porous body and resistance to water absorption. It was produced using a combination of clays and fired at high temperatures.

Medieval glass objects were primarily used for decoration. They were often used to create stained glass windows in churches and cathedrals, as well as to produce decorative vessels and other objects.

Terracotta was a type of medieval ceramic commonly used for the production of architectural elements such as tiles and bricks. It was made from a mixture of clay and sand and fired at relatively low temperatures.

Medieval ceramic objects were primarily used for storage. They were used to store food, liquids, and other materials.

Blown glass was a type of medieval glass commonly used for the production of drinking vessels and tableware. It was made by blowing molten glass into a mold or by using a free-blowing technique.

Medieval stained glass windows were primarily used for decoration. They were designed to create colorful and intricate patterns and images, often depicting religious scenes or stories.

Terracotta was a type of medieval ceramic commonly used for the production of figurines and sculptures. It was made from a mixture of clay and sand and fired at relatively low temperatures.