First, measure and pour your milk into a large, wide pot. A heavy-bottomed pan helps to prevent the milk from scorching. Adjust the recipe to make as little or as much as you need, but try to keep the proportions the same.
Heat the milk over medium heat until it reaches a gentle boil. Stir the milk occasionally so it doesn’t scorch on the bottom.
While the milk is starting to boil, measure out the vinegar or lemon juice and set up your strainer. Set your strainer or colander over top of a large bowl. Line the strainer with a piece of cheesecloth.
Once the milk hits a gentle boil, then turn off the heat and pour in your lemon juice or vinegar. Stir gently and allow the milk to curdle.
You’ll know the milk has curdled when it has separated into white curds and a clear, yellowish liquid. If the milk doesn’t curdle, add another tablespoon or two of vinegar and bring the milk back to a boil.
Pour the curdled milk through the cheesecloth and strainer.
You can save the clear liquid, also called whey, for later if you like. Set it aside.
Rinse the vinegar or lemon juice out of your curds.
Once the whey and water have drained, pull the ends of the cheesecloth up around your cheese. Tie a knot to keep the cheesecloth snug around the cheese.
Gently squeeze your cheese to get out any excess water.
Use the ends of the cheesecloth to hang your curds over your sink so they can continue to drain for at least half an hour.
Leaving the curds in the cheesecloth, press it into a disk shape. Then, set something large and heavy on top. Allow it to rest for 3 or 4 hours.
Once the cheese is somewhat firm, you can remove the weight and the cheesecloth.
Cut the cheese into usable pieces. Place in an airtight container to store in your refrigerator for up to30 days, or freeze in portion-size pieces.