At present, in terms of materials, glass cups generally include ordinary glasses, double-layer glasses and crystal glasses. From the functional point of view, the popular glasses generally include tea cups, wine glasses, juice cups, and portable portable cups; So, how do we choose when buying so many glasses? Next, the editor of Jiuzheng Home Furnishing Network will tell you how to buy glasses, hoping to help you.
Ordinary glass
Ordinary glass materials are mostly made of high-temperature silicon firing, using high-boron heat-resistant glass, which has excellent heat resistance and corrosion resistance; as a green and environmentally friendly glass material, the cup body is crystal clear, has a moist feel, and has an elegant shape. It is a good companion for making tea and drinking healthy water.
1. The material should be pure: if the glass material is not pure, there will be lines, bubbles or sand on the glass drinkware. The rough lines can be felt by hand, and the fine lines can only be seen when facing the light. The material bubble resides in the deep part of the glass body and looks like a small circle from the outside. The operation bubble is relatively exposed, some are like fisheyes, which will pierce a hole with a light poke; some are like small scars on a fruit, which are easy to peel off layer by layer. “Sand” refers to white granular silica sand that is embedded in the glass body without melting, and also refers to other granular impurities.
2. The thickness should be the same: When selecting, observe the light of the drinkware. If the light perception is the same everywhere, it means that the thickness is the same. Seen from the outside, the bottom should be level, not sloped or pot-shaped; flicking the walls with your fingers should make a pleasant sound.
3. The appearance should be beautiful: the surface should be smooth; the cup gloss should be good; the geometric shape should be flat; the cup lid should not be too loose or too tight, and the shape of the teapot and cup should be coordinated.
Double-layer glass
The double-layer glass is transparent, not easy to burn, easy to clean, does not leave tea stains, and is resistant to friction. High-quality products that are environmentally friendly and practical.
The biggest advantage of double-layer glass is heat insulation. In the middle of the two layers is a vacuum compartment, which can protect the water temperature of the cup and keep your hands insulated.
1. Appearance recognition. Firstly, check whether the inner and outer surfaces are uniformly polished, whether there are bruises, scratches or burrs; secondly, whether the mouth welding is smooth and consistent, which is related to whether you feel comfortable when drinking water; thirdly, whether the internal seal is tight, Whether the screw plug matches the cup body; look at the cup mouth, the more round the better, the immature craftsmanship will appear out of round.
2. Tightness test: First twist off the lid to see if the lid fits perfectly with the cup body, then add boiling water (preferably boiled water) to the cup, and then invert the cup for two to three minutes to see if there is any water Ooze
3. Thermal insulation test: Put boiling water into the cup, and after two or three minutes, touch each part of the cup to see if it is hot. If any part gets hot, the temperature will be lost from that place. It is normal that there is a slight fever in the place like the mouth of the cup;
4. Capacity detection: First, check whether the depth of the inner layer and the height of the outer layer of the thermos cup are not much different (generally 18-22mm). In order to reduce costs, many small factories often start with materials, which may affect the cup’s quality. capacity;
5. The identification of stainless steel for double-layer glass material: There are many kinds of stainless steel materials. 18/8 means that this stainless steel material contains 18% chromium and 8% nickel. The material that meets this standard is a green product that meets the national food-grade standard. Rust-proof and corrosion-resistant. Ordinary stainless steel cups (pots) are whitish or dark in color. If they are immersed in 1% salt water for 24 hours, rust spots will occur. Some of the elements contained in them exceed the standard and directly endanger human health.
Crystal glass
Crystal glasses are mostly used as wine glasses. When distinguishing the quality of such glasses, you can start with the following points:
1. Sound: Tap lightly or flick the utensil with your finger, the crystal glass can make a light and brittle metal sound, and a beautiful aftertaste is rippling in the breath.
2. Hand feeling: Hold a crystal goblet gently, you will feel a calm, heavy hand.
3. Luster: Lift a crystal cup and rotate it against the light. You will find that it is like an exquisite handicraft, white and transparent, reflecting the charming colorful light.
4. The crystal has high hardness. The relative hardness of the crystals is measured through scientific experiments, and the hardness of the crystal is 7 Mohs.
5. The crystal has good stability and will not change color after long-term use.
6. Different physical properties. Crystal can make marks on glass, but not vice versa.
The above is the way to buy glasses that the editor tells you, is everyone clear?
