You can use plain kefir to replace buttermilk cup for cup. Therefore, if your recipe calls for 1 cup of buttermilk, simply substitute 1 cup (237 ml) of kefir. Though kefir contains a wider range of beneficial bacteria and other microbes than buttermilk, heating it will kill many of the microbes ( 7 , 8 ).Click to see full answer. Similarly, you may ask, can I substitute kefir for buttermilk in baking?Due to the high acidity provided by the lactic acid in kefir, it helps create a similar environment to buttermilk in baking. To use kefir as a buttermilk substitute in recipes, it is advisable to use a 1-to-1 ratio and mix in additional liquid, such as milk or water, if the consistency is too thick.Beside above, what can be used instead of buttermilk? For each cup of buttermilk, you can use 1 tablespoon of white vinegar or lemon juice plus enough milk to measure 1 cup. Stir, then let stand for 5 minutes. You can also use 1 cup of plain yogurt or 1-3/4 teaspoons cream of tartar plus 1 cup milk. Also asked, is Kefir same as buttermilk? Kefir (kuh-FEAR, not KEE-fur) is fermented from whole milk using special kefir grains (more about them in a minute). Buttermilk, more formally called cultured buttermilk, is made by fermenting skim milk with lactic acid bacteria, Streptococcus lactis. Buttermilk, a staple in great-grandma’s kitchen.Is kefir a good substitute for milk?Kefir is a fermented milk drink that has a tang, or sour flavor, similar to yogurt. Replace it with yogurt thinned with milk. If you need 1 cup of kefir, use 3/4 cup of plain yogurt thinned with 1/4 cup milk.