| 摘要 |
To reduce the quantity of waste waters which must be treated in sewage farms most of the waste water which is produced in blanching and cooling stages, is eliminated. The present process comprises treating fruit or vegetables in the conventional manner up until the blanching stage, blanching them in steam and recovering a condensate, cooling them in air and preferably spraying with water or with some of the condensate, or following the air-cooling with a passage in cold water in a cooling cycle. After adding the required quantity of salt to the vegetables for example, they are frozen and their surfaces are glazed with all or some of the condensate. This process also increases the yield the prevents the loss of valuable soluble substances. |
