Application Note: Jams

Jams are spread onto breads, used as fillings in pies and pastries or as decorative coatings on confectionary items.

Traditional viscosity testing with a viscometer and accessory, such as a t-bar spindle, can be difficult as jams often have solid particles (fruit) which can cause large variations in centipoise (cP) values. The R/S+SST and a yield test easily produces two numbers, yield stress value and modulus (slope of line leading up to yield stress), which are used to evaluate the fluids in less than 30 seconds.