Can glass tea cups be heated in the microwave?

In modern fast-paced life, microwave ovens have become one of the indispensable small appliances in the home. It can not only heat food quickly, but also be used to heat drinks, such as a cup of hot milk in the morning or a pot of tea in the afternoon. However, while enjoying this convenience, many friends may be confused about what material to use for the container, especially when we hold a beautiful and practical glass teacup in our hands, we can't help but ask: "Can glass teacups be put into the microwave?" Today, as a professional manufacturer of household glassware, Xinghuo Glass is here to answer this question in detail.

1. Not all glass is suitable for microwave heating

Although glass is a common food contact material, not all glass products are suitable for microwave ovens. This mainly depends on the type of glass. Xinghuo Glass's products mainly include the following three series:

• Crystal glass series
• High borosilicate glass series
• Soda-lime glass series

Below we analyze whether these materials are suitable for microwave heating one by one.

2. High borosilicate glass: ideal for microwave ovens

Borosilicate glass is well known for its excellent heat resistance. It has a low coefficient of thermal expansion and can withstand large temperature changes, making it very suitable for use in high temperature environments.

Advantages:

1. High temperature resistance, can withstand temperature differences up to 400°C
2. Strong resistance to thermal shock and not easy to crack
3. Safe and non-toxic, does not contain lead and other harmful substances (Xinghuo glass adopts environmentally friendly technology)

Applicable scenarios: High borosilicate glass tea cups can be directly placed in the microwave for heating. They are very suitable for brewing hot tea and hot drinks. They are ideal for home kitchens and offices.

XINGHUO Glass Recommendation: Our "High Borosilicate Heat-resistant Tea Cup Series" is specially designed for microwave ovens and hot water brewing, taking into account both practicality and aesthetics.

3. Soda-lime glass: Available in some cases ⚠️

Soda-lime glass is the most common type of glass in our daily life and is widely used in ordinary water cups, beverage cups and other products.

Features:

1. Lower cost and high transparency
2. The heat resistance is average, not suitable for sudden cold and hot environments

Note: If your glass teacup is made of soda-lime glass, it is recommended not to frequently heat it in the microwave. If you must use a microwave, please make sure that:

1. The cup has no decorative metal rim or pattern
2. The cup body has no cracks, bubbles or other defects
3. The heating time should not be too long and sudden cooling should be avoided

4. Crystal glass: Not recommended for microwave ovens ❌

Crystal glass is widely loved for its crystal clear appearance and is often used to make wine utensils and high-end drinking utensils. However, this kind of glass usually contains a certain amount of lead or other heavy metal oxides to increase its refractive index and gloss.

Risk Warning:

1. High temperature heating may cause lead to precipitate
2. Not suitable for long-term storage of acidic or hot drinks

❌ Recommendation: Crystal glass tea cups are more suitable for drinks at room temperature or low temperature, and it is not recommended to heat them in a microwave.

5. How to determine whether a glass teacup is suitable for microwave oven?

If you are not sure whether the glass teacup in your hand is suitable for microwave use, you can make a preliminary judgment by the following methods:

1. Check the product label: Regular manufacturers will mark "Microwave Safe" or "Microwave safe" on the packaging or bottom of the product.
2. Observe the material description: Is it indicated that high borosilicate glass is used
3. Simple test method: Put an empty cup in the microwave and heat it for 30 seconds. If there is no obvious heat or deformation, it is generally safe.

6. Tips for using glass teacups

• Check for cracks or gaps before use to avoid explosion during heating
• Avoid putting it in the microwave directly after taking it out of the refrigerator
• Do not heat a glass with a high sugar content for a long time to avoid residue that makes it difficult to clean or damages the glass surface

7. Conclusion: Choose the right material and use it with peace of mind

Whether a glass teacup can be put into a microwave oven depends on the type of material it is made of. Xinghuo Glass reminds you that when purchasing glass drinkware, please pay attention to the material description of the product and choose a safe material that suits your usage habits.

Warm reminder: If you need to use it for microwave heating, it is recommended to give priority to high borosilicate glass tea cups.

Xinghuo Glass focuses on the research and development and manufacturing of high-quality glassware, and is committed to providing consumers with safe, healthy and beautiful household products. Welcome to visit Xinghuo Glass's official website www.xinghuoglass.com to learn more about its products and add a touch of refinement and peace of mind to your life.

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