the relative hardness associated with each sample which is the penetration force at a respective value measured in millimeters as well as the energy required to spread extrude the product by measuring the area under the curve each sample was tested in order to determine the percent of oil loss for each sample in order to measure the amount of oil released from each sample two empty whatman 1 filter papers were weighed out and a 5 gram portion of each sample was placed between the two filter papers in a sandwiched configuration a two kilogram weight was centrally placed on top of each sandwiched sample for about 5 seconds in order to apply pressure to the sample in a consistent reproducible manner each sample was allowed to remain in this arrangement for 24 hours at a temperature between about 68 u00b0 f and 72 u00b0 f after this period of time the two filter papers were re weighed and the amount of oil released from the sample into the two filter papers was then determined by gravimetric analysis to correct for any effects due to ambient humidity a control set of empty filter papers exposed to the same environment as the test sample a temperature between about 68 u00b0 f and 72 u00b0 f for 24 hours were also measured and these values were used in the gravimetric analysis to adjust for any changes in the filter paper weight due to moisture pick up the results of the gravimetric analysis are provided below in table 2.