This depends on the density of the soy sauce. Assuming the soy sauce is 5% more dense than water (an approximation I found doing a web search), then the density of soy sauce would be 1.05 g/mL. 1 gal soy sauce x (3785.41 mL / 1 gal) x (1.05 g / 1 mL) (0.0022 lb / 1 g) = 8.74 lb The answer is ~8.74 pounds based on the approximate density of soy sauce and rounding to two decimal places.

soy sauce

Soy sauce has low viscosity.

Yes, soy sauce in a packet can be treated the same as soy sauce in a bottle. Soy sauce in a packet can be used to marinate meat.

Method or Madness - 2012 Soy Sauce 1-1 was released on:

USA: 7 April 2012 (LA Web Festival)