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Alert: Dough Mixers

  • ISSN: 1195-5228
  • Issued: January 2000
  • Content last reviewed: January 2009

Hazard Summary:

Two workers were killed in 1999 in dough mixing machines because the machines were not properly guarded or locked-out. Many other workers continue to suffer severe injuries from such machines.

Access to the moving parts such as whisks, paddles, hooks or other blending accessories has caused these fatalities or crushing, laceration or fracture injuries.

Hazard Location:

Bakeries, restaurants, cafeterias, supermarkets, hotels, theme parks, colleges, schools, and the food processing industry.

Recommended Precautions and Legal Requirements:

  1. Guarding.
  2. Dough mixing machines need to be guarded to prevent a worker from being exposed to the moving parts. The guard should be interlocked so that the equipment cannot be operated when it is opened for pouring or cleaning, or when the bowl is lowered.

    An appropriate "lock-out" procedure should be in place. The interlock shall not be used in place of an appropriate lock-out procedure.

    The Regulation for Industrial Establishments section 24 states:

    "Where a machine or prime mover or transmission equipment has an exposed moving part that may endanger the safety of any worker, the machine or prime mover or transmission equipment shall be equipped with and guarded by a guard or other device that prevents access to the moving part."

    Section 76 of the regulation states:

    "Where the starting of a machine, transmission machinery, device or thing may endanger the safety of a worker,

    (a) control switches or other control mechanisms shall be locked out; and

    (b) other effective precautions necessary to prevent any starting shall be taken."

  3. Training.
  4. The employer is required to make sure that workers are trained to recognize possible hazards in the workplace.

    The Occupational Health and Safety Act, section 25(2)(a) states:

    ". . . an employer shall, provide information, instruction and supervision to a worker to protect the health or safety of the worker;".

This Ministry of Labour Alert has no legal effect and does not constitute and is not a substitute for legal advice. If you require specific assistance with respect to the interpretation of a legislative provision and its potential application to you please contact your legal counsel.

Remember that while complying with occupational health and safety laws, you are also required to comply with applicable environmental laws.

Please photocopy Ministry of Labour Alerts, distribute them widely and post them where people will see them.