How can you tell a wine glass from a bad one? How to distinguish the quality of ceramic cups?

Rubbing your hand repeatedly on the rim of the glass will make a pleasant sound in a better wine glass.

Reason: Wine glasses are generally made of glasses, while the glass of *** is purely artificially blown, and the thickness of the glass should be very flat.

So, when rubbed with your hands, the cup itself resonates, and the thicker the sound (average) it is.

The better the quality of the cup.

In my experience, let's be practical! There are two main aspects of "good or bad" ceramic products (cups): quality and safety, where quality refers to the durability of finished products, and safety refers to environmental protection, hygiene, and health related to human contact.

If it is craft porcelain, the quality is important, because this category is mostly used as decoration. According to your question, ceramic cup, in addition to the texture to meet the process requirements, the impurities of the clay, the firing temperature will affect the quality, the general choice of high-temperature porcelain is better, followed by the thickness, ** some low-cost porcelain, the porcelain body is so thin that it is afraid of breaking with a little force. In terms of safety, because it involves the process of color and glaze (the color of the paint is not conducive to physical health from a certain layer), the underglaze color is better than the overglaze color for health.

In general, ceramic mugs are definitely better than plastic, stainless steel, PVC and other products, in addition to being resistant to high temperatures, they are also easy to clean.

To distinguish the quality of a glass from the following aspects:

1. The material should be pure: if the glass material is not pure, there will be lines, bubbles or sand on the glass drinking utensils.

"streaks" refers to the appearance of streaks on the surface of the vitreous body. The coarse lines can be felt by touch, and the fine lines can only be seen by looking at the light.

"Bubble" refers to the small cavity formed in the vitreous body due to the encapsulation of air, which can be divided into two types: material bubble and operation bubble according to the cause of formation. The bubble is located deep in the glass and looks like a small circle from the outside. The operating bubble is relatively exposed, and some are like fisheye bulges, which will be pierced if you poke lightly; Some are like small scars on fruits, and they are easy to peel off layer by layer.

"Sand" refers to the white granular silica sand embedded in the glass without dissolving, and also refers to other granular impurities. It is more difficult to spot when the sand is embedded in a thicker bottom or under the cover of brushed color. Due to the different composition of sand and glass, the expansion coefficient is different, so the slightest collision will be separated from the glass body, resulting in glass cracking; Sometimes, although there is no collision, the sand will detach from the glass body due to temperature changes, causing the glass to explode automatically.

Second, the thickness should be consistent: that is, the distribution of glass materials in each part of the drinking utensils should be uniform. When choosing, observe the light of the drinking utensils, if the light perception is consistent everywhere, it means that the thickness is consistent; If there is too much difference between light and dark, the thickness is inconsistent.

For example, if the shoulder of the cup is too thin, it is generally not easy to notice, but if you look at the light, you will find that the place that is too thin is too translucent. Different uses of drinking utensils have different requirements for thickness; Tea utensils should be thinner, while wine utensils and cold drink utensils can be slightly thicker. Generally, the bottom of the drinking utensils should be slightly thicker, but if it is too thick, the heat transfer will be slow, and it will be easy to crack when heated; The four walls should be slightly thinner than the bottom, but if they are too thin, the strength will be too low and they will not be strong.

When choosing, the bottom should be horizontal when viewed from the outside, not a slope or the bottom of a pot; Flicking your finger on the four walls should make a pleasant sound.

3. The appearance should be beautiful: there are four types of non-standard phenomena.

1. The surface is not smooth, the mechanism has cold mold marks, and the blown ones have extrusion and air eye marks.

2. Observe the drinking utensils against the light, and you can see the same marks and cracks as the knife carving, which are different from the refraction of the light in the whole container.

3. The geometric shape is not correct, the circle is not round, it should be flat, and it should not be straight.

4. The lid cup on the pot is too loose or too tight on the neck, or too hanging to fall to the shoulder, as well as the same set of drinking utensils, the shape of the pot, cup, plate, etc. is not coordinated, and the artistic style is inconsistent. Glass products are not standard, which not only affects the appearance, but also is easy to damage.

The quality of the water cup should be considered from checking the sealing, heat preservation, size, formal purchase channels, materials and workmanship.

1. Check the tightness.

When buying a cup with a lid, you must observe whether its cornice and lid are sealed, which is a key factor to check whether the cup is leaking water and whether it can be kept warm. If possible, you can also pour water into the cup and turn it upside down on the spot to observe whether there is water seeping out and check the tightness of the device.

2. Check the heat retention.

Double-layer vacuum thermos cup, you can pour hot water into the thermos cup and then close the cap, and touch the cup shell with your hand after a few minutes.

3. Purchase size.

When choosing a water cup, you should consider the size and capacity of the water cup. If you just use it at home or in the office, a 350ml water bottle for men and 250ml for women will do. If you want to consider outdoor sports, you should not only consider whether the capacity should be larger, but also whether it can be placed on the backpack and bicycle tripod.

4. Purchase through formal channels.

Try to pick products from well-known brands. When purchasing, consumers should pay attention to check whether the manual, Narotshan label and product certificate are complete, and avoid buying "three no products".

5. Check the materials and workmanship.

Check to see if the product is labeled with its material type and material composition. Open the thermos cup and smell if there is a serious odor. If it is a qualified product, the materials used are all food grade, and there will be no peculiar smell.

Touch the mouth and inner tank with your hands, the inner liner of the qualified thermos cup feels relatively smooth, while most of the inferior thermos cups feel rough in the hole.

1.Material selection.

The material of the water cup is one of the important factors that determine its quality. Common drinking cup materials are plastic, glass, stainless steel, etc. Plastic cups are lightweight and easy to carry, but they can release toxic substances; Glass cups are healthy and environmentally friendly, but fragile and fragile; Stainless steel cups are sturdy and durable, but they are heavier.

All things considered, rusty steel is the most popular choice nowadays.

2.The size of the capacity.

The capacity of the water cup needs to be selected according to the needs of individual use. If you need to spend a long time outdoors, it is recommended to choose a water bottle with a large capacity; If you just drink water daily, choose a water cup with a smaller capacity. However, it should be noted that an oversized water bottle will increase the inconvenience of carrying.

3.The thermal insulation performance is ingenious.

Common water cups have thermal insulation properties, which are very convenient for outdoor activities and drinking hot and cold beverages. Generally speaking, the better the heat retention performance, the higher the cup**. If you only need daily water, you don't need to buy a water bottle with good thermal insulation performance, but if you need to store temperature-sensitive beverages for a long time, you need to buy a water bottle with good thermal insulation performance.

4.Caliber size.

The size of the caliber of the water cup is also one of the factors to pay attention to. If the diameter is too large, it will affect the thermal insulation performance, and if the diameter is too small, it will affect the drinking experience. It is recommended to choose a moderate caliber size for easy drinking and washing.

In general, cups with a straight spout design are more popular because they reduce the number of straw uses.

5.Design aesthetics.

Although the appearance of a water cup does not affect its basic function, a water cup with a beautiful design and beautiful appearance is very easy to like. On the premise of taking other factors into account, choosing your favorite shape and color and a wide round of water bottles will make life more enjoyable.

6.Brand reputation.

Brand reputation is also one of the factors to consider when choosing a water bottle. Choosing a brand with a reputation and credibility can ensure the quality of the product and after-sales service. You can buy a water bottle that you are satisfied with through the brand's official website and offline store experience.

7.Budgeting for expenses.

Water cups** range from a few yuan to several hundred yuan, and the cost budget is one of the key factors in choosing a water cup. According to personal needs and preferences, choose the appropriate ** range of water cups, can ensure the optimization of cost performance.

8.Wash regularly.

Regardless of the material of the cup, regular cleaning is essential. The inside of the water cup is easy to breed bacteria, and long-term use without cleaning will not only produce peculiar smells, but also threaten human health. It is recommended to wash and dry thoroughly every day to avoid residual water retention.

The small triangle symbol at the bottom of the plastic cup resembles the ID card of a plastic container, and the numbers in the triangle frame range from 1 to 7, and each number represents a size of plastic container with different meanings.

"01" is thrown away after drinking, "02" is not recommended to be used as a water container, "03" should not be heated, "04" more than 110 will be hot melt, "05" can be reused after careful cleaning, "06" should not directly heat the instant noodle box in the bowl, "07" should be used carefully to avoid "bisphenol A".

The basic principles when purchasing: colorless and transparent; It is best to have no decoration on the belly of the glass, so that it is easy to enjoy the original color of the wine; The material should not be too thick, so as not to affect the touch when tasting.

1. The choice of material.

The main materials of red wine glasses are crystal and glass, and the aroma and taste of crystal glasses and glasses will be slightly different, mainly due to the different roughness of the surface of the two.

Through the microscope, it can be observed that the surface of the crystal has more unevenness than the glass, and it hangs more in the glass, and when used to hold champagne, the bubbles will perform better, and the small unevenness on the wall of the glass can retain these bubbles for a longer time, which is the soul of champagne.

2. The choice of appearance.

For a romantic or intimate wine drink, it is advisable to choose a glass with a generous design, no embellishment, transparent, spherical or tulip-shaped glass, although the choice of wine glass does not affect the texture of the wine, but for the subjective feeling of drinking, the use of elegantly designed wine glasses can enhance the drinking style.

3. Choose the size.

The size of the wine glass should be about 10 ounces, and the pouring should not be more than half the size of the glass, but there should be enough to shake the wine to diffuse the aroma of the wine. Red wine is usually slightly more open than white wine, but the rim should still be slightly inward-shrunk to gather the aroma of the wine.

A good wine glass is made because it has the following points:

1.The appearance of the cup edge should be smooth and uniform, and the neck of the cup should be seam or seamless (of course, the cost of seamless overall blowing should be much higher, and the feel is also much more comfortable), and secondly, the light transmittance should be good, and the cup mouth should be smooth and smooth.

2.The material of the wine glass is divided into glass or crystal, and the body of the glass should be colorless and transparent. Do not choose a glass with carved or other colors, so as not to make a wrong judgment about the color and color of the wine.

3.When we choose a cup, because we choose a crystal cup, the crystal cup is much stronger than the glass. The hardness of glass is 7, and the crystal is 7, so the crystal is more wear-resistant and compression-resistant.

4.To be resistant to cleaning, the general glass cup is prone to wear and tear during the washing process, and many of us call it washing. A good cup should be able to withstand at least 500 rounds of high-intensity alkaline detergent cleaning.

5.In the comparison of cups of the same grade, the thinner the cup is the better, the brighter the clarity is the better, and the smoother the mouth is the better.

6.When choosing a wine glass, we can pinch the rim of the glass with our index finger and thumb and lift it up to see if the sound is crisp and long. The sound produced by low-quality wine glasses is usually muffled.

The cup is thin, colorless and transparent, and has a pleasant sound. The shape is best tulip type, and the mouth of the cup is smaller than the body of the cup, which can condense the aroma of wine; The cup must have a high foot, which is not only convenient to shake, but also to avoid raising the temperature of the wine with the hand, and the palm is far away from the cup, hoping that the temperature of the hand will not affect the temperature of the wine, so when drinking red wine, do not use the fingers and palms to directly drag up the bottle belly of the goblet should be directly twisted with the fingers, so as to enjoy the beauty of red wine more perfectly. When pouring wine, you only need to pour 1 4-1 3 full of wine glasses, and the glass should be larger (about 300-550ml), and the contact surface between the wine and the air is larger when shaken, so that the aroma of the wine can be released more.

As for champagne, it is best to use a longer goblet and pour 2 3 of the glass to make the wine color and bubbles.

I basically buy red wine glasses in a store called Austrian wine glasses, just on the ** Internet, the owner is very enthusiastic, is a connoisseur, the glasses are imported, and the cost performance is very high.

There is a doorway for red wine glasses to distinguish *** bad, just knock on it, and immediately know the advantages and disadvantages.

Look**Listen to the sound, after a good wine glass clinks glasses, the sound is resentful, as slow and deep as hitting the ancient bell, generally this kind of cup ** is more than 5000+, ordinary cups, the sound is crisp, short and flat! These are okay cups, the worst is what kind of cup, that is, the glass wall is very thick, there are bubbles, or the cup handle is brittle and easy to break, a good cup not only has a good sound, light and thin, but also strong!

I've been a wine franchise before, so I'd like to give you some advice.

One is the material. A good red wine glass is crystal clear, without bubbles, and the refractive power is very good. Here to distinguish between crystal cups and glasses, most of the popular crystal cups on the market are lead-free crystals.

The second is workmanship, a good cup is generally relatively thin, the streamline is very good, and it is generally integrally formed, even if it is connected, it will not be so obvious.

The third is the sound, a good cup is a crystal cup, for example, the sound after beating is very melodious and crisp, to put it bluntly, the echo is very strong.

The sound of the almost cup is relatively dull.

Hope it helps the landlord!