The clamp includes a hollow base having an open top side, two opposed open ends, and an inner sidewall bordering a bottom side as well as two opposite lateral sides of the base. The inner sidewall defines a passage extending between the two opposite open ends and through which a flexible tube can pass. The clamp also includes a slidable part inserted into the base at one of its ends to close its top side. The proposed concept is particularly advantageous for sugar making.
