- Ik - 



During Vacuum-Cooling 



EFFECT OF INITIAL TEMPERATURE ON 

 RATE OF COOLING OF LETTUCE 



TEMPERATURE (°F.) 



U.S. DEPARTMENT OF AGRICULTURE 



8 10 12 14 16 18 



TIME (MINUTES) 



NEC 3072-56(2) AGRICULTURAL MARKETING SERVICE 



Figure 3 



During Vacuum-Cooling 



EFFECT OF INITIAL TEMPERATURE ON 

 RATE OF COOLING OF CELERY 



TEMPERATURE (°F. 



►Warm celery 



U S DEPARTMENT OF AGRICULTURE 



NEG. 3073-56 (2) AGRICULTURAL MARKETING SERVICE 



Figure h 



