Firmness, Total Work, Hardness
The consistency of potato salad is often a source for customer complaints. The overall firmness of the salad is heavily dependent on the chunks of potato in the mix. These irregularly sized pieces of potato would likely generate highly variable results if tested individually. An aggregate sample of potato salad was tested with the TA-65 Multiple Puncture Probe, TA.XTPlus, and Exponent software in this study because a bulk sample can average out much of the variability caused by the irregular pieces of potato.