Moulding of hollow moulded fibre products

A moulding system for moulding a hollow moulded fibre product from a fibre suspension, the moulding system comprising:

• a mould comprising one or more internal surfaces that define a cavity, within which the hollow moulded fibre product is moulded in use, and a plurality of passageways that provide fluid communication between the cavity and an exterior of the mould;
• a fibre suspension supply system;
• a pre-filling liquid supply system;
• and
• a control system, configured to control the pre-filling liquid system and the fibre suspension supply system to:
• at least partially fill the cavity with a pre-filling liquid from the pre-filling supply system to form a body of the pre-filling liquid in the cavity;
• and
• subsequently introduce a fibre suspension from the fibre suspension supply system to the at least partially filled cavity, wherein at least some of the fibre suspension impacts the body of pre-filling liquid.