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A spoon scooping out a portion of homemade Greek yogurt.

How to Strain Yogurt (and Collect Whey)

Learn how to strain yogurt to make a delicious and thick Greek-style yogurt. PLUS, learn how to collect whey and creative ways to use it.
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Course: How To
Cuisine: American
Prep Time: 5 minutes
Additional Time: 8 hours
Total Time: 8 hours 5 minutes
Author: Dolly | Little Home in the Making

Ingredients

  • Plain yogurt

Equipment

  • Strainer
  • Cheesecloth

Instructions

  • Fit a large bowl with a strainer, leaving plenty of room for liquid whey to collect on the bottom of the bowl.
  • Line the strainer with 2-3 layers of cheesecloth, clean flour sack towel, or reusable cheesecloth.
  • Transfer the yogurt to the lined strainer, leaving about ½" of space at the top of the material used to line the strainer.
  • Cover the strainer with plastic wrap and place in the fridge.
  • Strain for at least 8 hours, or 10-12 hours for a Greek-style yogurt. Stir once or twice to encourage an even consistency.
  • Strain for 24-48 hours for a yogurt cheese that can be used as a cream cheese substitute.
  • Transfer the strained yogurt to a clean container and store in the refrigerator for up to 2 weeks. Discard if there are any signs of spoilage.
  • Transfer the liquid whey to a glass jar with a lid and use in fermentation recipes, or baking recipes to replace water. If the whey is clear and bright yellow, it will store for a month or more. If it is milky, do not use it for fermentation, but only for baking or making whey cheese. Milky whey lasts up to 1 week in the fridge.

Notes

Using a yogurt strainer: If you have a yogurt strainer, you can use that to strain the yogurt and reserve the whey. If you want a clear whey, line the strainer with a layer of cheesecloth OR a flour sack towel. Otherwise, it will likely be very milky.