The functions can be accessed simultaneously to carry out steaming, emulsifying, blending, precise heating, mixing, milling, whipping, kneading, chopping, weighing, grinding and stirring.

The TM3300, the first version named "Thermomix", was released in 1985, with a white finish and having the mixing bowl lower than the previous model.

The next model, the Thermomix TM21, was released in 1996, with a bigger bowl, integrated weighing scale and a more modern appearance.TM5 incorporates digital technologies, and allows "guided cooking" using proprietary memory chips to provide settings and cooking instructions, and a touch screen instead of the buttons and knobs of previous models.

The chronology of Thermomix models is as follows: 75% of the machines sold are made in Cloyes-sur-le-Loir, France,[3] and the rest in Wuppertal-Laaken, Germany.

According to the producer, the TM5 also has a less noisy motor, a larger mixing bowl, a new steamer, a higher maximum temperature of 120 °C (248 °F), and support for online recipes.

[18] In June 2017 the ACCC started court proceedings against the Australian Thermomix distributor, alleging that it breached Australian Consumer Law, failed to comply with mandatory reporting requirements for injuries, asked consumers to sign non-disclosure agreements, and made false and misleading statements about its 2014 recall.

[19] Choice told the Australian Broadcasting Corporation (ABC) that it was aware of 87 cases where Thermomix consumers had been burned.

[20] In April 2018 Thermomix in Australia was handed a $4.6 million fine because they had violated consumer law by failing to report dangerous defects.

The sealing ring was identified as a point of possible failure in circumstances where the machine was operated at high speed and then switched to the lid open position.