As people's quality of life improves, environmentally friendly, safe and healthy daily necessities are increasingly favored by consumers. High borosilicate glass containers are a type of high-quality product that has emerged under this trend. It is widely used in kitchens, laboratories, daily homes and even industrial fields because of its high temperature resistance, corrosion resistance, and the absence of harmful substances. However, even though high borosilicate glass has many advantages, there are still many things that need special attention during use. This article will systematically introduce the issues that should be paid attention to when using high borosilicate glass containers to help users use such containers more scientifically and safely.
1. Basic characteristics of high borosilicate glass containers
Before going into the precautions for use, it is necessary to first understand the basic properties of high borosilicate glass containers. High borosilicate glass is a special glass containing silicon dioxide (SiO₂) and boron trioxide (B₂O₃), which has the following core characteristics:
Excellent high temperature resistance: large temperature difference resistance, generally able to withstand temperature changes from -20℃ to 400℃;
Low thermal expansion coefficient: not easy to burst due to thermal stress caused by drastic temperature difference;
High chemical stability: acid and alkali resistant, corrosion resistant, not easy to react with substances;
Non-toxic and environmentally friendly: does not contain heavy metals such as lead and cadmium, and meets food grade safety standards;
High light transmittance: visually transparent, beautiful appearance, suitable for storing and displaying food.
Because of this, high borosilicate glass containers are widely used in food preservation, baby bottles, microwave lunch boxes, baking utensils, coffee pots, experimental instruments and other scenes.
2. Precautions for use
Although high borosilicate glass has good performance, it is still a "glass" material and still needs scientific use and maintenance. The following is a detailed explanation from multiple aspects:
2.1 Avoid drastic temperature differences
Although borosilicate glass can withstand large temperature differences, "instantaneous temperature differences" may still cause stress concentration in the glass and cause it to crack. For example:
It is not advisable to put a container just taken out of the refrigerator into boiling water directly;
Containers just taken out of the oven cannot be immediately rinsed with cold water or cooled in ice water;
After heating in a microwave oven, the container should be left for a few minutes before contacting cold water or the table.
Suggestion: It is safer to control the temperature difference within 120℃. Before use, the container can be placed at room temperature for a few minutes to ease the temperature gradient.
2.2 Prevent mechanical shock and knocking
Although borosilicate glass is more impact-resistant than ordinary glass, it is still afraid of being knocked or collided with hard objects by sharp objects.
Do not knock the edge of the container with hard objects such as metal spoons and knives;
Do not stack multiple glass containers to avoid bumps caused by sliding;
Try to avoid dropping from a high place, even if it is not broken, it may cause hidden cracks.
Suggestion: When using, special attention should be paid to the edge and bottom of the container, which are the most vulnerable places.
2.3 Pay attention to the applicable heat source type
Although high borosilicate glass is resistant to high temperatures, not all heat sources are suitable.
Applicable heat sources: electric ovens, electric ceramic stoves, microwave ovens, dishwashers, etc.;
Heat sources not recommended: direct burning with open flames (except for some special glass pots), induction cookers (metal bottom trays are required);
Do not dry burn: dry burning can easily cause glass stress concentration and cracking due to local high temperature.
Suggestion: Before use, be sure to check the product manual to confirm its applicable heat source, and do not heat blindly.
2.4 Precautions for cleaning and disinfection
High borosilicate glass is easy to clean and is not easy to leave odor or color, but there are also some things to pay attention to when cleaning:
It is not recommended to scrub with hard tools such as metal wire balls;
If there are stubborn stains, use edible baking soda + hot water to soak;
It can be put in the dishwasher for cleaning, but it should avoid contact with other metal tableware to avoid friction and damage to the surface;
When using boiling water for disinfection, it should be heated slowly to prevent drastic temperature differences.
Recommendation: It is advisable to use neutral detergent. It is strictly forbidden to use detergents containing hydrofluoric acid, otherwise it may corrode the glass surface.
2.5 Precautions for food preservation
Borosilicate glass is widely used for food storage, but the following details cannot be ignored:
If it has a sealed lid, the lid is mostly made of plastic or silicone and cannot be heated at high temperatures;
Although some containers are heat-resistant glass, it does not mean that it is safe to heat after sealing. The lid should be opened or the vent should be opened first;
Some acidic or alkaline foods may still affect the glass surface after long-term storage, and the storage cycle should be appropriately changed;
When holding hot soup, coffee, etc., the container should be preheated to prevent cracking due to local high temperature.
Recommendation: Use with sealing rings appropriately to improve the preservation effect, but be sure to remove the sealing accessories when heating.
2.6 Safety when used by children and the elderly
Although it is high-strength glass, glass is ultimately "fragile". When used by children and the elderly, the following points should be paid more attention to:
Try to choose a design with a non-slip bottom and explosion-proof cover;
Avoid using it to hold hot liquids when used by children;
The placement should be away from the edge to prevent accidental knocking;
Avoid children from hitting it by mistake as a toy.
Suggestion: For users with special needs, it is recommended to choose a material with "anti-fall" function or a plastic-glass composite design.
3. Purchase suggestions for high-borosilicate glass containers
In order to ensure safety and experience, it is very important to choose high-quality high-borosilicate glass containers. It is recommended to judge from the following aspects:
Check the product logo: whether it is clearly marked with "Borosilicate Glass" or "high-borosilicate glass";
Identify the brand and production qualifications: preferably brand products that have passed food grade or SGS certification;
Look at the color and transparency of the glass: high-quality high-borosilicate glass usually appears clear and slightly blue;
Check the surface smoothness: no obvious bubbles, impurities, burrs, etc.;
Confirm the purpose and applicable instructions: whether the applicable temperature, heat source, whether it can be frozen/heated, etc. are indicated.
As a star product in modern family kitchens and daily necessities, high borosilicate glass containers do have many incomparable advantages: safety, environmental protection, beauty, and heat resistance. However, we should not take it lightly during daily use. Whether it is temperature difference control, cleaning method, heat source matching or storage environment, it has an important impact on the service life and safety of high borosilicate glass containers.
Only scientific use, regular inspection and reasonable maintenance can make high borosilicate glass containers truly escort our quality of life.
If you need to purchase high borosilicate glass containers wholesale, OEM customization or learn more about technical parameters, please contact us, a professional high borosilicate glass container manufacturer, to obtain more professional product services and technical support.
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