Used Thermomix UK Buyers Guide: TM6, TM5, and TM31

Buying a used Thermomix in the UK can save you hundreds of pounds compared to the new retail price, but the machines are precision appliances with wear components that need checking carefully before you hand over any money. This guide covers every meaningful inspection step for the TM6, TM5, and TM31, explains what each model is genuinely capable of, and gives you the price benchmarks and legitimacy checks you need to buy with confidence.

For a broader overview of the second-hand appliance market, see our guide to domestic robots for sale.

Which Model Are You Looking At?

TM6: The Current Machine

The TM6 is the model Vorwerk currently sells new at £1,299. It includes a scale built into the lid, a colour touchscreen, guided cooking mode via the Cookidoo platform, and WiFi connectivity for over-the-air software updates. It is the only Thermomix with a temperature probe for precision cooking.

Used TM6 prices in the UK range from £700 to £1,100 depending on age, condition, and included accessories. The sweet spot for value is £750 to £850 for a machine that is two to four years old and in clean working order. At that price you save £400 to £550 versus new while retaining access to Vorwerk's full service network and current software updates. Browse available listings on the used Thermomix TM6 page.

TM5: The Previous Generation

The TM5 introduced Cookidoo guided cooking and the Recipe Chip system. It remains a capable machine and still works with Cookidoo subscriptions, but it lacks the lid scale, the colour display, and the temperature probe of the TM6. Software updates for the TM5 have slowed considerably.

Used TM5 prices sit between £350 and £600. If your priority is guided cooking at the lowest entry cost and you are comfortable with the older interface, the TM5 is a reasonable choice. If you can stretch to a used TM6 at the lower end of its price range, the TM6 is the better long-term buy.

TM31: Discontinued and Cookidoo-Free

The TM31 is no longer manufactured and is not supported by Cookidoo for new recipe content. Existing recipes remain accessible offline, but you cannot browse or download new content, and guided cooking is unavailable. The TM31 is a capable food processor and cooker for users who already know what they want to make, but it is not suitable for buyers whose main interest is the Cookidoo recipe library.

Used TM31 machines sell for £150 to £280 in the UK. At that price the value proposition depends entirely on your use case. For straightforward blending, cooking, and mixing tasks it remains a very capable machine. For the full Thermomix ecosystem experience it is the wrong starting point.

Pre-Purchase Checks

Blade Assembly

The blade assembly is the primary wear component on any Thermomix. It sits at the base of the mixing bowl and handles everything from blending soup to kneading dough, which means it accumulates more wear than any other part.

Remove the blade assembly from the bowl and look at the blade tips. They should be sharp and symmetrical, with no visible chipping or rounding. Run your finger carefully along the flat of a blade and feel for a proper edge. A blade that has processed hard ingredients at high speed for years will feel noticeably duller.

The ice test is the most reliable functional check you can do at the point of sale. Put a handful of ice cubes into the bowl, refit the blade assembly, and run the machine at speed 10 for ten seconds. A sharp blade converts ice to fine snow consistently. A blunt blade leaves coarse, uneven chunks.

Replacement blade assemblies for the TM6 cost £60 to £90 from Vorwerk UK. If the blade fails the ice test, factor that cost into your offer.

Heating Element

Place 500 grams of cold water in the bowl and heat to 90 degrees Celsius, timing from the moment you press start. A healthy TM6 heating element reaches 90 degrees in four to five minutes. Significantly longer than five minutes indicates element degradation from heavy use or limescale accumulation.

Limescale is treatable with a citric acid descale cycle, but persistent slow heating after descaling suggests genuine element wear. Vorwerk UK can replace the heating element, but this is one of the higher-cost repairs, so a machine that consistently fails the heating time test warrants a price reduction or should be avoided.

Mixing Bowl Interior

Examine the inside of the stainless steel mixing bowl under good lighting. Look for scoring, deep scratches, or discolouration. Some light surface marks are normal on used machines, but deep scoring suggests that metal utensils have been used inside the bowl, which weakens the stainless steel surface over time.

Discolouration, particularly a brownish tinge, can indicate prolonged contact with acidic foods such as tomatoes, citrus, or vinegar without adequate cleaning. This is cosmetic in mild cases but can become a hygiene concern if the surface has degraded significantly.

Lid and Seals

The lid and its silicone butterfly seal are straightforward to inspect but often overlooked. Remove the butterfly seal from the lid and flex it gently. It should return to its original shape immediately. A seal that stays deformed, shows cracks, or has hardened areas needs replacing before the machine is safe for high-temperature cooking. Replacement seals are inexpensive and available from Vorwerk UK.

Check the measuring cup lid insert for cracks around the rim. This is a minor part but worth noting, as a cracked insert allows steam to escape.

Cookidoo Subscription and Software Version

The Cookidoo subscription does not transfer from the original owner to the buyer. Regardless of how much time remains on the seller's subscription, a new owner needs to create their own Cookidoo account and purchase a new subscription at £39 per year. Do not pay a premium for a machine on the basis that it has an active subscription.

For TM6 machines, confirm that the unit connects to a WiFi network and that the software version displayed in the settings menu is current. The TM6 receives updates automatically, so a machine that has been connected to the internet regularly should show a recent software version. A machine that has never been connected, or was used entirely offline, may be on an old firmware version and will need time to update after purchase.

For the TM5, check the Recipe Chip slot for damage and confirm that the interface responds cleanly to touch input across the screen.

UK-Specific Considerations

Vorwerk Direct Sale Model

Vorwerk sells Thermomix machines exclusively through its own direct sales network in the UK. There is no third-party retail channel, which means all new and certified used machines come through Vorwerk itself. Private used sales happen through the usual second-hand marketplaces, but certified refurbished machines come directly from Vorwerk.

Vorwerk Service Network

Vorwerk UK operates service centres and will service any Thermomix regardless of the original purchaser. You do not need a receipt or proof of original purchase to book a service. Out-of-warranty repairs on the TM6 typically cost £80 to £150 for most common repairs, including blade assembly replacement, seal replacement, and software issues. More significant repairs such as heating element replacement can cost more.

This is genuinely good news for used buyers. Unlike some appliance brands, Vorwerk's willingness to service machines without original ownership evidence means a used purchase is not a risk from a serviceability perspective.

Serial Number Verification

Thermomix machines are sold at inflated prices on some second-hand platforms, and stolen machines do appear in the market. Before completing any private purchase, ask the seller for the serial number, which is located on a label on the base of the machine. Contact Vorwerk UK directly and ask them to confirm the machine is genuine and has not been reported as stolen or involved in any dispute.

This step takes a few minutes and costs nothing. It is worth doing on any private sale regardless of how legitimate the seller appears.

Accessories and What Should Come With the Machine

A complete TM6 should include: the mixing bowl with blade assembly, the lid with butterfly seal and measuring cup, the spatula, the Varoma steaming attachment, and the simmering basket. Missing accessories can be purchased from Vorwerk UK, but factor the replacement cost into any offer you make.

The TM5 should include the same core components plus the Recipe Chip adapter. TM31 accessories are available but may require sourcing from specialist suppliers as Vorwerk no longer lists them prominently.

Pricing Summary

Is a Used Thermomix Worth It?

For buyers who intend to use their Thermomix regularly, a used TM6 in the £750 to £850 range represents strong value. You receive the current model with full software support, Cookidoo compatibility, and access to Vorwerk's service network, at a saving of £400 to £550 versus new. The main outlay beyond the purchase price is a new Cookidoo subscription at £39 per year, which you would pay on a new machine anyway.

For buyers on a tighter budget, the TM5 is a capable alternative if you are comfortable with the older interface and limited future software development. The TM31 suits buyers who want a robust food processor and cooker without the guided cooking ecosystem.

Before committing, review our used robot inspection checklist for a general framework that applies across appliance categories, and see our used robot vacuum guide if you are purchasing other domestic robots at the same time.

Browse used robots across all categories on the Robot AutoTrader platform, with listings updated daily from verified sellers across the UK.