Cultured Food Life just posted a detailed FAQ about L-reuteri yogurt. https://www.culturedfoodlife.com/l-...d-starter-faqs/

Donna Schwenk mentions Dr. Davis and has done a podcast with him.

https://www.culturedfoodlife.com/l-...i-love/#podcast

One thing needed: An appliance or yogurt maker that can maintain a constant temperature of 100° F for 36 hours.

Some Instant Pots have a yogurt setting but they may be too high in temp. She advises testing with a cup of water.

She certainly makes that yogurt sound appealing!