Q: Are borosilicate glass jars freezer safe?
A: Borosilicate glass jars can be frozen.
Borosilicate glass has a low coefficient of thermal expansion, which allows it to withstand large temperature changes. In refrigerated environments, it will generally not break due to a decrease in temperature. However, there are some things to keep in mind when using it. One is not to put the borosilicate glass jars directly into the freezer after they are filled with liquid, as the liquid expands in volume when it freezes, which may cause the jars to rupture, and it is best to reserve some space. The second is that if the jar has been previously heated and other high-temperature treatment, wait until it cools down to room temperature before placing it in the freezer to avoid damage caused by the large temperature difference.
Q: Are borosilicate glass jars safe for microwave ovens?
A: Borosilicate glass jars can usually be heated in the microwave. But the lids usually can't be heated.
This is because borosilicate glass has a low coefficient of thermal expansion and can withstand large instantaneous temperature changes. It can be heated evenly during microwave heating and generally will not break. However, be careful to observe the instruction label on the jar when heating, some parts with metal decoration or made of non-borosilicate glass (such as the lid) may not be suitable for microwave heating and should be removed in advance to avoid damage or even danger.
Q: Can borosilicate glass jars be recycled?A: Borosilicate glass jars are recyclable. Lids made from cork, bamboo, and metal are likewise recyclable.
Borosilicate glass is one of the recyclable materials. After recycled borosilicate glass is collected and sorted, it will be sent to a glass processing plant. In the factory, this old glass will be crushed, cleaned and then re-melted to make new glass products after a series of processes such as molding, which helps to save resources and reduce energy consumption.
Q: What are the advantages and disadvantages of borosilicate glass jars?A: The advantages of high borosilicate glass storage jar are as follows:
Safe material: the main components are silica and boron oxide, non-toxic and harmless, no heavy metal precipitation, in line with food-grade standards, you can rest assured that all kinds of food storage.
Resistant to high temperature and cold: low coefficient of thermal expansion, can withstand an instantaneous temperature difference of 150 degrees - 400 degrees, can be used for microwave heating, oven baking, can also be placed directly into the refrigerator, not easy to rupture.
High strength and hardness: higher density than ordinary glass, more wear-resistant and impact-resistant, not easy to scratch, wear and rupture, long service life.
High transmittance: Optical glass-like transmittance, 360-degree clear and bright, can clearly see the contents of the canister, easy to quickly find and access.
Good sealing performance: with food-grade rubber rings, wooden lids, etc., can effectively isolate air and water, moisture-proof and insect-proof, to maintain the freshness of food.
Convenient cleaning: smooth surface, not easy to stain, stains easy to clean, long-term use can still be clean as new.
The disadvantages of high borosilicate glass storage tanks are as follows:
Relatively heavy: heavier than ordinary plastic storage jars, inconvenient to carry, and easy to damage from a high place to fall.
Higher price: complex manufacturing process, high cost, resulting in more expensive.
There is a risk of breakage: although stronger than ordinary glass, but still may be due to violent collision, improper use and other broken, resulting in glass fragments, need to be careful when using.
Q: High borosilicate glass storage jar is suitable for storing what?
A: High borosilicate glass storage jar is suitable for storing many kinds of food.
It is suitable for storing dry foods, like all kinds of grains (rice, millet, oats, etc.), beans (red beans, green beans, black beans, etc.), nuts (cashews, almonds, walnuts), and spices (salt, sugar, pepper, chili pepper, and cardamom), because it seals well and prevents dry foods from getting damp, moldy, and buggy.
It is also good for preserving pickled foods, such as pickles and kimchi, etc. The sealing of the jars helps to maintain the flavor of the pickled products, and the glass material will not have a chemical reaction with the pickled products, which will affect the flavor.
They are also suitable for all kinds of jams and honey, which are easy to access and can be preserved for a long time, so that these foods do not deteriorate. In addition, like tea, milk powder, coffee powder and other food products that require a high preservation environment, it is also appropriate to use high borosilicate glass storage jars to store them.
Q: What are the advantages of glass jars with cork lids?
A: Cork caps have the following advantages:
Good sealing: cork material is soft and elastic, can be tightly fitted with the mouth of the container, effectively isolate air and moisture, such as wine bottle stopper, can maintain the quality of the liquid inside the bottle for a long time.
Good air permeability: the existence of tiny pores in the cork, in order to ensure the seal at the same time, can make a small amount of air into the container, conducive to the storage of certain items, such as wine in the bottle can be oxidized moderately, enhance the flavor.
Thermal insulation: low thermal conductivity can reduce heat transfer, such as cork hot water bottle, can maintain water temperature for a long time.
Sound insulation and noise reduction: the internal porous structure can absorb sound waves, has a good sound insulation effect, used for sound insulation places such as doors, windows, etc. sealing, can reduce noise interference.
Anti-slip and wear-resistant: the surface friction coefficient is large, not easy to slip, and the material is tough and wear-resistant, such as as cup lids, storage jar lids, etc., easy to open and close and durable.
Natural and environmental protection: made of oak bark, renewable, no formaldehyde and other harmful substances, safe and non-toxic, can be in contact with food, in line with the concept of environmental protection.
Insects and moths: It does not contain nutrients, so insects and ants are not interested in it, and it is not easy to be moth-eaten in humid or dry environments, which is conducive to long-term storage of goods.
Good elasticity and compressibility: The special cell structure makes it able to restore its original shape after being pressurized, such as cork soles, which can be adjusted according to the foot shape, and is comfortable to wear.
Aesthetics and texture: natural color, unique texture, can enhance the overall aesthetics and artistic sense of the container, increase the added value of the product, suitable for high-grade gift packaging, decorative storage jars.
Q: How to pick a good borosilicate glass jar?
A: There are several things you can look for in a borosilicate glass jar:
Look at the glass material
Transparency: high-quality borosilicate glass is highly transparent and free of impurities and air bubbles. Selection can be observed when the jar to the light, the quality of the good degree of transparency is better.
Thickness uniformity: touch the wall of the jar with your hand and feel whether its thickness is uniform. Uneven thickness of the jar may be in the process of use due to uneven heat or cold and rupture.
Check sealing performance
Lid design: The lid is a key factor in sealing. If it's a screw-on lid, check that the threads are clear and regular so that the lid will bite tightly into the jar. If it is a cork lid, see if the texture of the cork is tight and there are no cracks.
Test the sealing: you can test the sealing by placing a paper towel in the jar, cover the lid and then place the jar upside down or horizontally for a period of time to see if the paper towel will become wet.
Consider capacity and size
Choose the capacity according to your usage needs. If you are just storing a small amount of spices, choose a small capacity; if you are storing dry goods, you may need a larger capacity jar.
Also consider the size of the jar, including height, diameter, etc., to ensure that it can be placed in the location you want to place it, such as cabinets, refrigerators, etc.
Look for cosmetic details
Edge Finish: The edges of the jar should be smooth and free of sharp corners, otherwise it may scratch your hands.
Appearance imperfections: check the surface of the jar for scratches, knocks, etc. These imperfections may affect the strength and aesthetics of the jar.
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