Probiotic well I liked tummyworks from Amazon. But a Simple and cheap one would be fage Greek plain complete or 5%. I used to put 2 coffee filters in a strainer. Dump the yogurt in the filter and put over a bowl. Stick in the fridge for 1-2 days. It just pulls off extra whey,just pour it down the drain. Wash the container and put the yogurt back in and in the fridge.
You don't have to double strain. Even just plain is great for them. I bought baby plastic spoons (they were on clearance and seemed simpler but not required) and would feed her yogurt 3x a day. If you don't strain then just pour off any liquid you find and don't mix back in.
Expiration date. Unless there's mold its fine it just gets more Greek.
The only issue with yogurt is they expect yogurt anytime you eat it.
You don't have to double strain. Even just plain is great for them. I bought baby plastic spoons (they were on clearance and seemed simpler but not required) and would feed her yogurt 3x a day. If you don't strain then just pour off any liquid you find and don't mix back in.
Expiration date. Unless there's mold its fine it just gets more Greek.
The only issue with yogurt is they expect yogurt anytime you eat it.