When I first received Symbioflor-1 and Symbioflor-2, it was a surprise because they were both liquids with droppers to take them.
A reader forwarded me a link to an PDF/Scan article from 1993 with interesting results using Oatmeal Soup. Lactobacillus was detected for almost 2 weeks after.
“A new oatmeal-based product for enteral feeding has been developed recently (26).
Oatmeal is mixed with water, supplemented with an enzyme mixture, heated, and then cooled and fermented with Lactobacillus spp. The product not only has an advantageous
nutritional composition but also contains high numbers of viable lactobacilli.”
Of course, one of the challenges is that we may actually be using too low dosage, for example:
“In another pilot clinical study, patients with chronic fatigue syndrome received 24 billion colony-forming units of Lactobacillus casei strain Shirota daily for 2 months, and a significant decrease in anxiety symptoms and a significant increase in Lactobacillus and Bifidobacteria were observed (Rao et al., 2009). ” 
This week I received probiotics from customprobiotics.com with instructions being:
PROBIOTIC POWDERS FOR ADULTS
Start with one adult scoop (0.8 gram, 200 billion cfu’s) of the probiotic powder first thing in the morning on an empty stomach (30 minutes prior to eating). Dissolve the powder in a glass of dechlorinated water and drink it. Do this ONCE a day only. Stay at this dosage for about 3-5 days.
If you are not happy with the results, raise the dosage to two scoops a day, one in the morning and one at bedtime. After one week go to three scoops a day if you still are not getting the expected results. The highest dosage we recommend is four adult scoops a day. You can always lower the dosage or stop taking probiotics for a few days.
Why in water and on an empty stomach? Simple — no food, the body does not turn on it’s acid productions (which it uses to digest food). If it is in a capsule, the acid must be there to dissolve the capsule… so the probiotics are immediately released into a dissolving-food acid environment.
These probiotics appear to Danisco originated probiotics, a Danish Company originally. Symbioflor is produced by a German company. Enterogermina is made in Italy and each serving is a viral of liquid. I suspect that unpublished research found delivery in water was superior. I also see the same with a probiotic manufactured in Italy. A Vet study (cited below) found that!
From comments on my post on L.Reuteri.
In animal studies we read:
“The method of probiotic administration can influence the performance and immune competence of birds, and administration via drinking water appears to be superior to the more conventional in-feed supplementation method.” 
Instead of capsules — consider:
- Taking them in water (no chlorine or fluoride please!) before meals, or
- Growing them (increasing their BCFU significantly) via yogurt or fermented porridge