Mason jar valved-lid component and kit for use in fermentation

A lid component for use with a glass jar and band of a mason jar, the lid component being made of an air-impermeable material and being dimensioned and configured to be releasably attachable to the jar by the band and to seal a wide mouth opening of the glass jar in an air-tight manner, the lid component comprising:

• a one-way valve adapted to allow gas produced by a fermentation process to escape from the jar while, at the same time, prevent oxygen-containing air from entering the jar, when the lid component is releasably attached to the jar;
• and
• a sealing wall,
• wherein the one-way valve comprises a bottom opening, a top wall, and a peripheral side wall extending from the bottom opening to the top wall, the peripheral side wall defining a space and the top wall having at least one opening biased towards a closed position and movable to an open position when pressure inside the space exceeds atmospheric pressure by a threshold amount;
• wherein the sealing wall extends radially outwardly from the bottom opening;
• wherein the sealing wall is substantially flat;
• wherein the lid component has a height and a diameter;
• wherein the bottom opening has a bottom opening diameter;
• wherein the sealing wall has a sealing wall diameter that is equal to the diameter of the lid component minus the bottom opening diameter;
• and
• wherein the sealing wall diameter is at least two (2) times greater than the height of the lid component.