You must avoid heating the hot water in a glass pitcher. Putting hot water in glass pitchers can cause them to break because the inner layer of the glass expands much more than the outside. This temperature difference creates tremendous pressure, and if the liquid is too hot for the outer layer, it will crack. The temperature difference between the outside and the inside will determine how much heat a glass pitcher can withstand.
This problem can be avoided by using a glass that is designed to handle hot liquids. The problem is that non-tempered glass has microscopic air bubbles that expand when it is heated and cooled. Glass can crack or even explode when this happens. If you are forced to use a glass container, you can heat the milk inside a glass container to avoid this problem. This will ensure that the milk does not leach into the liquid, which will prevent it from getting hot.
Another way to avoid hot liquids spilling into a glass bottle is to use Pyrex jars. These jars can withstand heat. A Pyrex measuring cup is capable of withstanding temperatures up to 100 degrees. Pyrex is not subject to this type of thermal stress, unlike a glass bottle. This is why Pyrex can withstand higher temperatures than boiling water, but it’s still vulnerable to cracking if you thermally shock it.
Use metal spoons to prevent hot liquids from getting into a glass pitcher. Metal spoons cool the water and absorb heat. This reduces thermal deviation. When washing a glass pitcher, you can also warm it up by rinsing it with 50% boiling water and 50% tap water. This helps the glass outside expand and reduce the thermal shock caused by the hot liquid.
Placing a glass jar on a cool surface is another way to prevent hot liquids from damaging the contents. When you’re using Pyrex jars for hot drinks, remember to keep the lids on the jars before putting them in the fridge. The jars will break if they are subject to thermal shock. So, you should take care to choose a glass container for hot drinks.
You should choose a glass utensil that is heat-resistant if you plan to use it in an oven. Pyrex, for instance, can withstand temperatures up to 220 degrees Fahrenheit. However, if you’re not certain whether a glass product is safe for use in the oven, you should check the manufacturer’s guidelines. This will ensure that your glass utensils are safe to use in the microwave or on the stove.