Preparation Line colander with 4 layers of cheesecloth; set in sink. Bring milk and salt to simmer in heavy large saucepan over medium-high heat. Stir in lemon juice. Let simmer until curds form, 1 to 2 minutes. Using finely slotted spoon or skimmer, scoop curds from pan and transfer to cheesecloth-lined colander. Let drain 1 minute (curds will still be a little wet). Transfer curds to medium bowl. Cover and chill until cold, about 3 hours. DO AHEAD: Can be made 2 days ahead. Keep chilled.
Preparation Line colander with 4 layers of cheesecloth; set in sink. Bring milk and salt to simmer in heavy large saucepan over medium-high heat. Stir in lemon juice. Let simmer until curds form, 1 to 2 minutes. Using finely slotted spoon or skimmer, scoop curds from pan and transfer to cheesecloth-lined colander. Let drain 1 minute (curds will still be a little wet). Transfer curds to medium bowl. Cover and chill until cold, about 3 hours. DO AHEAD: Can be made 2 days ahead. Keep chilled.