Practical and reliable TEWL, evaporation and permeability measurements. The VapoMeter is the only fully portable instrument available for the measurement of TEWL (transepidermal water loss) values and evaporation rates. TEWL is a well known indicator of the skin's barrier function. The VapoMeter is battery-operated and portable. This offers great freedom of movement and the possibility of measuring difficult areas.
How to Cook Beef Tripe. Beef tripe is a type of food derived from the lining of one of a cow's four stomach chambers. Tripe (which can come from many other animals, but usually hoofed farm animals) is eaten all over the world as an important ingredient in many local cuisines.
Tripe is a tough meat, so it needs to be cooked low and slow to tenderize it. (Some wags say boil it for ever, then give it to the dogs.) If you are cooking with green tripe, it needs to be soaked in water for several hours first, and then cooked for a very long time.