Bead beating is quickly becoming the preferred process used to break up (lyse) samples in order to release the DNA, RNA and proteins contained within cells. Samples are placed in tubes with the appropriate grinding beads and subjected to high energy mixing. A variety of prefilled tubes are available for homogenizing samples including those with stainless steel, glass and Triple-Pure™ zirconium beads. All three bead types are acid washed and processed to remove nucleases and proteases. The Triple-Pure bead tubes undergo special handling during filling and are quality tested to ensure the elimination of DNase, RNase, protease, and nucleic acids.