Question

The vessels in the brewery propagation are operated under _____________ bar pressure.

(a) 1.0 – 2.0

(b) 3.0 – 5.0

(c) 0.5 – 1.0

(d) 0.1 – 0.5

The question was posed to me in semester exam.

The question is from Yeast Propagation in section Yeast Management & Microbiology of Fermentation Technology

Answer 1

Correct answer is (c) 0.5 – 1.0

Explanation: The vessel in the brewery propagation are operated under 0.5 – 1.0 bar of top pressure. The vessels are made of stainless steel. After cleaning, the vessels are sterilized with the help of steam.