4 oz glass jars can be the perfect place to save juice and smoothies and then put it in the refrigerator. Its cap will help to prevent any bacteria to come into the juice. Besides juices and smoothies, you can also put some mixing of natural treatments in it.
Basically, we are not going to specifically discussed about 4 oz glass jars. But, here we will talk the glass itself. People will choose to use plastic because it will not be broken if you accidentally dropped it. However, there may be some pros and cons about it.
Health and safety issues
Glass jars are the best option of storage especially if you will consume the thing inside it or apply it to your body. It is true if glass will never leach harmful chemical substance like plastic, tin, and silicone material will.
However, glass is prone to breakage. Besides accidental drop, it could face breakage when exposed to high temperature. It is more about thermal shock risk. Still, there are some brands that offer glass with thermal shock resistant.
Even though it has thermal shock risk, glass is very durable and safe for heavy duty in the freezer, oven, and microwave.
Impact on ecology
Well, glass consumes lots of energy on the production process like the metal does. Besides, glass is heavy material which requires you to prepare stronger material to store a glass jar rather than the plastic does. Long story short, glass will demand more and more energy.
In contrary, glass jar and containers are very harmless for environment. It can be fully recycled if you are not using it anymore. Thus, glass is kind of better solution compared to plastic jars.
Glass also offers lifetime durability as long as you do not drop it or something like that. Meanwhile, plastic will degrade after years. It could create brittle and it is not safe for storing food and other consumable things.
As we all know glass is dense. There is no micro pore that will take up stains and odors of your juice and smoothie like the plastic jar will. This is why cleaning a glass jar will much easier both in the dishwasher and manual cleaning.
But if your glass jar has a plastic lid then it is better not boiling it inside the hot dishwasher as well as detergent. So, instead of using plastic jar for your smoothies, you better use 4 oz glass jars.