Cultures

What L. acidophilus is, what the research shows, and how to culture it at home at 108-112°F for about 12 hours, with checks and fixes.

What L. bulgaricus is, what studies show, and how to culture it at home at 110-115°F for about 8 hours, with checks and fixes.

What S. thermophilus is, what research shows, and a step-by-step home method at 110-115°F for about 8 hours, with checks and fixes.

How to make L. reuteri yogurt at home at 99°F for 24 hours, with the science, the 2020 name change and fixes for failed batches.

How much yogurt starter for a gallon of milk How much yogurt starter for a gallon of milk? Use about 1 cup of plain yogurt with live cultures, the amount most university extension guides give, or as little as ½ cup, the gallon equivalent of 2 tablespoons per quart. For ½ gallon, use ¼ to…

What is a yogurt starter? A yogurt starter is the small dose of live lactic acid bacteria you add to milk to turn it into yogurt. The bacteria ferment milk sugar into lactic acid, which sours the milk and makes it set. US rules require two specific species in yogurt cultures, and a starter can…