Drinking recipients with flow regulation means of minimal construction, systems and processes with said drinking recipients

A drinking recipient comprising:

• a base wall and a sidewall extending from the base wall thereby confining a fluid collection volume of the drinking recipient, and collecting a beverage discharged through the base wall in a prevailing flow direction opposite the direction of the gravity force, wherein
• the base wall has a base opening extending along the prevailing flow direction and comprises flow regulation means configured to only provide flow passage in case of being impinged with an upstream flow pressure bigger than a previously defined value of flow pressure,
• the flow regulation means is a single piece that regulates the flow passage and that provides liquid sealing of the base wall, the flow regulation means extends at least partially inside of the base opening,
• the flow regulation means present:
• only an upstream portion with an exterior surface, and wherein the flow regulation means is configured to be removably retained on the base opening, or
• the upstream portion and a downstream portion with an exterior surface, and wherein the flow regulation means is configured to be removably retained on the base opening, and
• wherein at least one of the upstream portion and the downstream portion has a tubular shape confining a flow passage section upstream of a flow regulation wall of the flow regulation means,
• the flow regulation wall comprising at least one flow passageway extending transversally relative to the prevailing flow direction and
• the at least one flow passageway being configured to be elastically enlarged from a closed position to an open position, in case of being impinged with the upstream flow pressure bigger than the previously defined value of flow pressure.