You must have seen that rubber gasket used in pressure cookers becomes loose after using for sometime. As a result stam does not build up in the cooker. What is the reason for this and how can you solve the problem?
Answers
Answer:
due to constant heat it deforms (according to my explanation)
Explanation:
Material-wise, new gaskets are typically made of silicone. Manufacturers use polymers other than rubber because rubber gaskets cannot withstand high pressure. Preferences for silicone include:
Silicone offers a better grip and seal,
Unlike rubber, food odor is not retained in silicone gaskets.
Silicone gaskets are more durable, and they tend to live longer than rubber gaskets, because they don’t crack easily upon aging.
These points can help you care and maintain your new gasket:
If you’ve installed a new gasket in your pressure cooker, there’s no need for special cleaning. Just a quick wash would do.
There’s a myth that rubber and silicone should be soaked well with water before installation to make it stronger, but it’s not true. The reason is, neither rubber nor silicone can absorb water, so soaking wouldn’t do any good.
The gasket however, should not be stretched or pulled; otherwise it might lose its original shape, or even tear apart.
Here are some handy tips to clean your gasket:
After every use of your pressure cooker, don’t forget to remove the gasket from the lid and wash it properly with soap water.
Avoid putting the gasket in a dishwasher
Only use soapy water to wash the gasket.
While cleaning, examine the gasket closely. Check whether the gasket developed cracking or signs of wear and tear.
While installing the gasket, always follow the manufacturer manual. Gaskets normally have indications for right and wrong sides.
So, before installation, look for these signs. The right side must always face upwards while installing a gasket.
If signs are not available, you can try orienting with any visible writing on the gasket with the words facing towards you.