A Laboratory Manual for Students of Home Economics and Hotel Administration. ... In addition to raw fruits, vegetables, meats and dairy products an almost endless variety of partially prepared food and cooked food may be frozen. The essentials are moisture-and-vapor-proof packaging materials, a wrap that excludes as much air as possible and freezers that ... contain much less acid than fruits and have higher pH values should be processed in a pressure cooker at 240Ad or 250AdF. a.
|Title||:||Chemistry and Food Preparation|
|Author||:||Marion Caroline Pfund|