1. Do I require a licence to manufacture food for distribution? If yes, can I do it in a residential house or in a food shop?
Yes, under the Sale of Food Act, a licence to operate a food processing establishment is required from AVA, for the manufacturing, processing, preparation or packing of foods (excluding meat or fish processing) for the purpose of distribution to wholesalers and retailers.
For licence to operate a meat or fish processing establishment, you may contact Ms Jannie Wan at Tel: 6325 7100 for more details.
The premises used for manufacturing, processing, preparation or packing of food for the purpose of distribution must be carried out in a properly designed and constructed food processing establishment equipped with all the necessary facilities.
Use of residential house or food shop as food processing establishment for manufacturing of food for distribution is not allowed.
from http://www.ava.gov.sg/