Kefir grains, a symbiotic culture of bacteria and yeasts. Traditional kefir is fermented at ambient temperatures, generally overnight. Fermentation of the lactose yields a sour, carbonated, slightly alcoholic beverage, with a consistency and taste similar to thin yogurt.
Aim: glans expansion. technique: urethral dilatation. I purchased a set of urethral sounds made from surgical quality stainless steel, with the following dimensions: 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38 F (1 F = 3 mm). I have been training for months approximately 1 hour once a week with sounds of successive dimensions and am now able to insert the biggest sound.
The main risks with sounding include tearing or cutting the urethra and infection. Anything inserted into the urethra is to be cleaned to reduce the chance of infection. Some discomfort may be felt later if the sound has stretched the urethra. If that happens, people use smaller sounds..