SUMMARY The apparent diffusion coefficients for NaCl in Romano-type cheese salted by brining or dry salting were ∼0·23 cm2/d. A plot of the natural logarithm of % salt-in moisture against distance was almost linear, the slope of which is the distance over which the salt concentration decreases by a factor of 1/e (0·368). Such plots may be useful in predicting the concentration of NaCl at any point in the cheese after any period of brining. After 9 d brining, the water to salt flux (ratio of outflow of water to inflow of NaCl) decreased from 2·42 at the surface to ∼0·5 in the middle zone of the cheese and increased again to > 1 at greater distances from the cheese/brine interface.
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Guinee et al. (1983) studied this question.