Urethane is a by-product of the fermentation and distillation of alcoholic beverages. In recent years, concern has been expressed over its presence in such beverages because of studies which demonstrate that urethane can cause cancer in various animal species and, as a consequence, must be regarded as a potential carcinogen...
Milk, preheated at 82°C for 30 minutes, was heated to 146°C
for four seconds (UHT-treated) and cooled to 5°C in a tubular heat
exchanger. Immediately after heat treatment, 20 gallons of heated
milk were vacuum distilled at 30°C in a semi-continuous, reduced
pressure glass apparatus. Twenty gallons of non-heated milk...