Brewing

Question 1

What is residual causticity?

Answer 1

The amount of caustic in solution that has not yet reacted.

Question 2

What does DMAIC stand for?

Answer 2

Define
Measure
Analyze
Improve
Control

Question 3

How do you calculate IBU’s?

Answer 3

(Mg hops * AA% * util %) / cool wort

Question 4

What is sensible heat vs latent heat?

Answer 4

Sensible heat is the amount of energy from 0°C-boiling.
Latent heat is the amount of energy required to change phase from liquid to gas.

Question 5

What kind of glycol is safe for brewery use?

Answer 5

Propylene glycol.

Question 6

What is the purpose of the boil?

Answer 6

Denature enzymes
Coagulate proteins and tannins
Hop isomerization and solubilization
Volatilize aroma compounds
Semi-Sterilization of wort
Concentrate the wort

Question 7

How does mash thickness affect the beer?

Answer 7

Thicker mashes lead to better fementability mashes with less extract overall. Thinner mashes have better extract with less fermentability.

Question 8

What is the difference between SS 304 and SS 316?

Answer 8

304 is Cr Ni and is less expensive
316 is Cr Ni Mo and is more resistant to corrosion