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Microenterprise Home Kitchen Operations (MEHKO)


As of January 1, 2019, AB 626, known as the Microenterprise Home Kitchen Operations Act, became law. This law authorizes San Mateo County to permit home kitchens for retail use.  

A Microenterprise Home Kitchen Operation (MEHKO) is a food facility that is operated by a resident from their private home kitchen. Once permitted, a resident can store, handle, prepare, and serve food to the public, as allowed by State law, similar to a restaurant. State law does place limits on the number of meals that can be served by a MEHKO, revenue that can be earned, and on how certain foods can be prepared, among other requirements.  

San Mateo County is conducting a two-year pilot program for these types of facilities.


1. Review the following documents:

2. Watch an online presentation.

Introduction to MEHKO 
Tuesday, August 10, 2021

Presentation Recorded in English
Thursday, August 26, 2021 | 6:00 – 7:00 p.m. | English/Tagalog (Q&A Only)
Zoom Webinar Link

MEHKO 101 and Food Safety – Preparing for and Passing Your MEHKO Inspection
Tuesday, October 26, 2021 

Presentation Recorded in English 
Training PowerPoint Slides EnglishEspañol 中文

*For technical difficulties accessing the webinar, please call (650) 363-1984.

3. Complete and submit a MEHKO Permit Application Packet:
    a. MEHKO Permit Application | MEHKO Permit Application Example
    b. Standard Operating Procedures (SOP) Form | Procedimientos de Operacion Estandár (SOP) | 微型企業家庭廚房營運 (MEHKO) 標準作業程序 (SOPs)
    c. Rental Notification Form (Applicable only if renting)
    d. Permit Fee (Permit fees for this Program are waived until 2023.)

4. Check with the city you live in for additional requirements.

5. Sign up for important Environmental Health Services MEHKO updates.

  • A permit issued from San Mateo County Environmental Health Services. 
  • No more than one full-time employee, (not including family members or household members) may work at the MEHKO. 
  • The MEHKO operator shall successfully pass an approved and accredited food safety manager certification examination.  
  • Any person(s) involved in the MEHKO must obtain a food handler card certificate from an approved California provider. 
  • Food shall be prepared, cooked, and served on the same day. 
  • People can dine at your home, or order take out or delivery. 

MEHKOs are NOT allowed to: 

  • Serve or sell raw oysters. 
  • Produce or sell raw milk. 
  • Conduct processes that require a Hazard Analysis Critical Control Points (HACCP) Plan. 
  • Manufacture ice cream or dairy products. 
  • Serve alcohol or food that contains alcohol without a license from the California Department of Alcoholic Beverage Control (ABC) Program. 
  • Resell food to other food facilities. 
  • Display signage or other outdoor advertising. 
  • Employ more than one full-time employee. 

For more information, please call (650) 372-6200 or email



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