Define the LTLT Pasteurization Method?

In LTLT pasteurization, the pasteurization time is in the order of minutes and related to the temperature used; two typical temperature/time combinations are used: 63 to 65°C over 30 minutes or 75° C over 8 to 10 minutes.

In this first class of pasteurization processes it is probable to define three phases:

a) Heating to a fixed temperature; 

b) Keeping this temperature over the established time period (= pasteurization time); 

c) Cooling the pasteurized products: natural (slow) or forced cooling. 

You would notice that, pasteurization temperature and time will vary according to:

a) Nature of product; initial degree of contamination; 

b) Pasteurized product storage conditions and shelf life required.