Salinity

[Cory]

What salinity would be required to prevent bacterial growth in food?

My idea is to make some super salty water and put frozen food in it. Then dose that while away on vacation with peristaltic pump.

 

[xxkenny90xx]

Interesting idea, tagging along

 

[Cory]

Bump im curious if this would work.

 

[Randy Holmes-Farley Verified Community Expert]

According to this article, 20% by weight works. Don’t use salt mix, use table salt.

How Does Salt Preserve Food?

Salt has been used as a preservative since ancient times to protect food against bacteria, mold, and spoiling. Discover how salt keeps food safe.

www.thoughtco.com

 

[Cory]

According to this article, 20% by weight works. Don’t use salt mix, use table salt.

How Does Salt Preserve Food?

Salt has been used as a preservative since ancient times to protect food against bacteria, mold, and spoiling. Discover how salt keeps food safe.

www.thoughtco.com

So does that mean for 1000 ml of water I should add 200 grams of sodium chloride?

Also im curious how much that would impact salinity for 200 gallons? And what about the iodine added?

 

[Cory]

Would it be wise to use calcium hydroxide instead or something else? Thoughts?

 

[Randy Holmes-Farley Verified Community Expert]

So does that mean for 1000 ml of water I should add 200 grams of sodium chloride?

Also im curious how much that would impact salinity for 200 gallons? And what about the iodine added?

Id use iodine free salt.
if you add that 1 L ( 200 g salt) to 200 gallons (757 L) is 200 g/757 L = 0.26 g/l. Seawater is 35 g/l, so it will boost it, but not that fast.

 

[Cory]

Id use iodine free salt.
if you add that 1 L ( 200 g salt) to 200 gallons (757 L) is 200 g/757 L = 0.26 g/l. Seawater is 35 g/l, so it will boost it, but not that fast.

So in the end id be around 35.26 ppt after adding this? Doesnt seem bad if thats true for a one time dose. Do you think there would be any problems doing this?

Reason, my emperor angelfish and panther grouper only eat frozen and i want to travel.