This comes down to personal preference. Some people like to soak their corned beef from anywhere between 15 minutes to two hours to make it less salty. Corned beef is a cured meat, which means it’s supposed to be salty. I find a rinse is just fine to remove excess salt. As mentioned earlier, corned beef is similar to ham in its salty flavor. But you know your own palate. If you’re sensitive to salt and find ham too salty, you’re more than welcome to soak it.