For direct-set starters, specific bacteria will be listed in the ingredients tab on the product page. If you do not see specific bacteria listed for a starter, this is because the product is an heirloom starter and we do not have that information.
There is no way to accurately measure the probiotic count in homemade foods, as they are not standardized nor encapsulated. The exact number of bacteria in a teaspoon, cup, or sip, etc. will vary greatly depending on the length of time culturing,the product being cultured, temperature, and dozens of other variables.
While it is possible to test a culture, it is prohibitively expensive, and the count would change almost immediately since this is not an encapsulated product. We do not test our reusable starters for the presence of specific bacteria.
If there is a specific set or amount of bacteria you need, it may be best to work with a licensed health care professional or nutritionist to choose an appropriate encapsulated product. Then you can enjoy fermented foods as part of your healthy diet. Home fermentation is a unique process with many variables in play, so if you're looking for a specific bacterial culture, capsules or powdered supplements would be better options.