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When you heat the jar, the glass expands only slightly while the metal expands much more. This is governed by the coefficient of expansion for the substance. The greater the coefficient of expansion, the more the substance expands. Since metal generally has a much higher coefficient of expansion, the lid of the jar will get bigger while the jar only expands slightly. That makes everything a little looser, which makes it much easier to open the jar.
What else can I help you with?
Can you use aluminium saucepans for jam?
It is not recommended to use aluminium saucepans for making jam, as the high acidity of fruits can react with aluminium and affect the taste of the jam. It is better to use stainless steel or enamel-coated saucepans for making jam to ensure a safe and flavorful outcome.
Why do we use sugar while preparing jam?
Sugar acts as a preservative in jam-making by creating a high osmotic environment that inhibits the growth of microorganisms. It also helps to thicken the jam and enhance its flavor.
Why is a tin-plated steel pan used for jam making?
A tin-plated steel pan is commonly used for jam making because tin has a non-reactive surface that won't interact with the acidic fruit during the cooking process. This helps preserve the flavor and color of the jam. Additionally, tin conducts heat evenly, which helps prevent scorching or burning of the jam.
What is the specific heat capacity of jam?
The specific heat capacity is the energy density of a substance. Since jam has a higher specific heat capacity than the pie crust it is contained in, this is why the contents of a pie are always much hotter than the pie itself.
Why do recipes for blackcurrant jam recommend that you boil the fruit in pans made from copper or glass and not iron?
Blackcurrants contain high levels of acid that can react with iron, giving the jam a metallic taste and causing discoloration. Copper and glass pans do not react with the acid in the fruit, allowing the jam to retain its natural color and taste.
What is the past tense of jam?
jammed. [[: or jamming. 'was jamming' / 'is jamming'. either or.
When was The Jam created?
The Jammed was created in 2007.
What is the opposite of jam?
In the context of a jammed nut or a jammed screw, the opposite of jam would be loosen or release. In the context of a traffic jam, the opposite would be flowing or freely flowing traffic. :)
How is food jammed?
Food is jammed by the act of preserving it into a "jam". These are made by boiling or simmering the food until it thickens or reduces to a syrup.
Why toe JAM why not toe CRUD?
well i personally believe that it is toe jam one because it is jammed between your toes and two toe jam is yummy like jam. crud is not.
What is packet jam?
jam-packed - filled to capacity; "a suitcase jammed with dirty clothes"; "stands jam-packed with fans"; "a packed theater". jammed, packed. crowded - overfilled or compacted or concentrated; "a crowded theater"; "a crowded program"; "crowded trains"; "a young mother's crowded days".
Can a disk get jammed in a Nintendo Wii?
you can jam a disk in any thing. i would know. i tried.
How do you fix a jam in a shotgun?
u dont get it jammed in the first place and u wouldnt have that problem
Why is your lawn mower starter jammed?
weak spring, dirt, and the gears are plastic and they get chewed up and jam.
How often will an M16A1 jam?
if you clean it ....then it wont jam ....but in the Vietnam War they told the soldiers not to clean the gun cuz ...it was a self cleaning gun ....so it jammed alot
What should I do if my mechanical pencil gets jammed?
If your mechanical pencil gets jammed, try gently pushing the lead back into the pencil or using a small tool to clear the jam. If that doesn't work, disassemble the pencil and carefully remove the jammed lead. Be cautious not to damage the pencil in the process.
What are the release dates for Jam Heavy Metal Guitar Secrets of the Metal Masters - 2013?
Jam Heavy Metal Guitar Secrets of the Metal Masters - 2013 was released on: USA: 10 September 2013
