The cheese extensibility rig consists of a microwaveable vessel and double-sided fork probe. The vessel and fork assembly is filled with a known weight of cheese and microwaved until the cheese is molten. A sample retaining insert is added to the vessel and the vessel/fork assembly slides into the fixture base, which is securely fastened to the Texture Analyser. The fork is connected to the load cell via a rapid locating adapter. The Texture Analyser pulls the fork through the molten cheese allowing the extensibility and resistance to extension to be measured. Cheese strength and extensibility are important textural attributes for many foods, most notably pizza.