Food Preservation Big Brain Tests

Enjoy these Food Preservation Big Brain quizzes we've created for you, helping to test the Food Preservation knowledge you have.

Question 1

Is it all right to reuse jar lids and bands?

Y
N
Lids should never be used a second time since the sealing compound becomes indented by the first use, preventing another airtight seal. Screw bands may be reused unless they are badly rusted or the top edge is pried up which would prevent a proper seal.

Question 2

What causes the undersides of jar lids to discolor?

Compounds
Water
Heat
Natural compounds in some foods, particularly acids, corrode metal and make a dark deposit on the underside of jar lids. This deposit is harmless providing the jar has a good seal and the contents have been properly processed.

Question 3

Why do jars break during processing?

Putting hot food in cold jars
Putting hot food in hot jars
Using the rack
Canning jars will break for several reasons: · Using commercial food jars rather than jars designed for home canning · Using jars that have chips or hairline cracks · Putting jars directly on bottom of canner instead of on a rack · Allowing jars to bump against each other during processing · Putting hot food in cold jars Putting jars of raw or unheated food directly into boiling water in the canner. This sudden change of temperature is too great and will crack jars.

Question 4

Can hard water film or scale be removed from canning jars?

Y
N
Yes. This can be oftentimes be accomplished by soaking jars for several hours in a solution of 1 cup vinegar and 1 gallon of water

Question 5

When should you check the seal on your jars?

12 hours
3 days
Two weeks
After jars have cooled between 12 and 24 hours after processing, check seal.

Question 6

Is it safe to use the open kettle canning method?

Y
N
No, this method is not considered to be safe.

Big Brain Results

You got 0 questions correct!

Try more of our Food Preservation Big Brain Quizzes.

Not finding the advice and tips you need on this Food Preservation Tip Site? Request a Tip Now!


Guru Spotlight
Sherril Steele-Carlin