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.
These cone shaped instruments painlessly measure the circumference of the opening of the urethra the way feeler gauges precisely measure the gap on a spark plug. The measurement of the caliber of the urethra is in French size. French is a measurement of millimeters circumference, and the French size is generally 3 times the diameter. A normal adult urethra is greater than 30mm circumference (30 French, approximately 10mm or 1cm diameter) except at the fossa navicularis and meatus, where the opening is normally approximately 24 French.