Register for our free online Bakery training courses
- Company News
The key to the significant benefits provided by the Tweedy™ process is rapid development of the gluten. This is achieved by a unique high-speed double helix mixing plate working in conjunction with baffles on the periphery of the bowl to produce an extremely effective three-dimensional mixing action. The rate of gluten development is optimised for throughput and quality by controlling the rate of energy input to a value that is specific to the flour being used and the product being made.
Dough development is the key phase in mixing. Stretch and shear forces created by the mixing action extend the protein molecules, enabling cross-link bonds to form between them, creating a fine, elastic network. The rate at which dough develops is directly related to how quickly molecules can be extended and new bonds formed, so the more intense the mixing action the faster the mix.
The Tweedy™ mixing action is particularly strong in this regard because the shape and speed of the mixing plate generates stretch and shear in the vertical as well as the horizontal planes to create an evenly distributed 3D mixing action.
The Tweedy™ carries out the same process as other machines, but works the dough more efficiently and, as a consequence, more quickly. Speed of mixing is the key to another important benefit. The Tweedy™ typically mixes a batch of dough in three minutes, giving up to 10 batches per hour, allowing for loading and discharge. Other machines – spiral and roller bar mixers, for example - achieve just three batches per hour as a rule.
Because the process is rapid and batch sizes comparatively small for a given output, the no-time dough is passed through the divider to the first prover before fermentation can begin. In mixers taking 20 minutes per batch, dough can be rising in the divider hopper which adversely affects scaling accuracy.
Additionally, product consistency achieved through developments in process control has virtually eliminated batch-to-batch variation, and if the line stops for any reason the amount of dough rejected is minimal and re-start is extremely rapid.
In fact, there are no process drawbacks to high speed Tweedy™ mixing. If you can do a job better and quicker, why not?
Peterborough residents and businesses can get involved by offering to volunteer with the ongoing efforts, making a… twitter.com/i/web/status/1…31 May 2022
Baker Perkins donated 20 large shipping boxes to the recent Ukraine Appeal from Peterborough City Council; the boxe… twitter.com/i/web/status/1…31 May 2022
Busy day at Paint India in Mumbai yesterday; Kevin Wright and Barry Dean are here today and tomorrow alongside our… twitter.com/i/web/status/1…27 May 2022
Baker Perkins Limited, Manor Drive, Paston Parkway, Peterborough, PE4 7AP UK, Registered in England: No. 5708493
© 2022 Baker Perkins. All rights Reserved.
Web Design by Studio 24