After 90°C incubation for cross-link removal, sample lysates can be stored at 4–8°C for up to one week and at –20°C or –80°C for up to 4 weeks. The upper phase of Paraffin Removal solution should be removed before storage. Before proceeding with the workflow after storage, thaw frozen samples at room temperature for 30 minutes or allow refrigerated (4–8°C) samples to equilibrate to room temperature for 15–30 minutes.