Containment basket adapted for bottles or similar containers, in particular for washing operations

A containment basket adapted for bottles, wherein the containment basket is made of plastic material and has a substantially parallelepiped structure with first and second opposite sidewalls and a base including one or more fixed grids and one or more sliding grids and an open side opposite to the base, wherein the containment basket comprises:

• a first transverse bar and a second transverse bar, respectively placed on opposite first sidewalls of the containment basket, the first transverse bar and the second transverse bar configured for securing the one or more of fixed grids parallel to the base of the containment basket, the one or more fixed grids comprising apertures of a size suitable for housing the bottles;
• a first guide and a second guide formed on respective opposite second sidewalls of the containment basket, the first guide and the second guide being adapted for housing a lever system for positioning the one or more sliding grids parallel to the one or more fixed grids and in a height-adjustable position along the second sidewalls, the one or more sliding sliding grids comprising apertures suitable for housing the bottles;
• first windows on the second sidewalls, adapted to cooperate with the lever system in order to allow the height-adjustable positioning of the one or more sliding grids, and also to allow the one or more sliding grids to slide between a bottle retaining position and a bottle releasing position.