Salt doesn’t clean your crawfish! Summary of the LSU study below 👇In 2014, Louisiana State University (LSU) conducted a study to determine if purging crawfish with saltwater actually works. The study was led by Greg Lutz, a crawfish specialist at the LSU AgCenter. The study involved purging crawfish in three different ways: with plain water, with saltwater, and with a commercial purging solution.Purging is a process in which crawfish are soaked in water to clean out their digestive tract before