What kind of glass are the shelves in the refrigerator made from: we analyze the types and their features

Shelves in the refrigerator are not just a functional element, but a key detail on which the convenience of storing food and the durability of the equipment depend. Few people think about the material from which they are made until they are faced with a crack, chip or need to be replaced. Meanwhile, the choice of glass for shelves is the result of complex engineering solutions, which take into account strength, safety, resistance to temperature changes and even aesthetics.

Refrigerator manufacturers use several types of glass, each of which has its own pros and cons. From budget models with acrylic “shelves” (which are not actually glass) to premium refrigerators with multilayer triplex the difference is colossal. In this article we will look in detail at what types of glass are used today, how to distinguish them, and what to do if the shelf is cracked or broken. You will also learn why tempered glass remains the most popular solution, despite the risks, and how to properly care for glass shelves so that they last for decades.

Spoiler: if you've ever dropped a jar of cucumbers on the shelf and it remained intact - most likely, it was tempered glass in front of you. But even it has weaknesses that are worth knowing about in advance.

Tempered glass: the standard choice for most refrigerators

More than 80% of modern refrigerators are equipped with shelves made of tempered glass —and for good reason. This material undergoes a special heat treatment: it is heated to 600–700°Cand then sharply cooled. As a result, the glass becomes 4–5 times stronger usual, withstanding loads up to 50–100 kg per square meter (depending on the thickness).

The main advantage of tempered glass is its resistance to mechanical damage and temperature changes. For example, if you place a hot pan on a shelf (which is not recommended!), ordinary glass will crack immediately, but tempered glass will withstand short-term heating. However, it also has a downside: with a strong impact, such glass does not crack, but has blunt edges. This is safe for the user, but means that the shelf must be completely replaced. breaks up into thousands of small fragments with blunt edges. This is safe for the user, but means that the shelf must be completely replaced.

• ✅ Withstands weight up to 20–30 kg per shelf (on average).
• ✅ Not afraid of moisture and detergents.
• ✅ Easy to clean, does not absorb odors.
• ⚠️ If damaged, it crumbles into small fragments (cannot be repaired).
• ⚠️ It can crack from a pointed impact (for example, if you drop a heavy knife with the point down).

Interesting fact: tempered glass is used not only in refrigerators, but also in smartphones (screens Gorilla Glass), car glass and even in architecture. However, for refrigerators they choose special brands of glass with increased resistance to low temperatures - ordinary tempered glass can become fragile. -20°C may become brittle.

Triplex: safety above all

If tempered glass crumbles when damaged, then triplex remains intact even after a strong blow. This is a multilayer material consisting of two or more glasses glued together with a special film (usually PVB or EVA). When destroyed, the fragments remain “glued” to the film, which makes triplex an ideal choice for families with children or for premium refrigerators.

Triplex is more often found in expensive models of refrigerators (for example, Liebherr, Miele or Samsung Family Hub). Its key advantages:

• 🛡️ Absolute safety: even with a strong impact, the fragments do not scatter.
• 🔇 The best sound insulation (shelves do not rattle when the compressor is running).
• 🧊 Resistance to condensation and temperature changes.
• 💎 More aesthetic appearance (often used in design refrigerators).

However, triplex also has disadvantages:

⚠️ Attention: Triplex is heavier than tempered glass by 20–30%which can increase the load on the shelf guides. In budget refrigerators, this sometimes leads to sagging or difficult movement of shelves.

It is worth noting that triplex can be different in composition. For example, in refrigerators Bosch Serie 8 is used laminated glass with UV protection, which does not turn yellow over time. And in some models LG they use triplex with an antibacterial coating that prevents the growth of microbes.

Acrylic “shelves”: a budget alternative to glass

In the cheapest refrigerators (for example, Atlant the basic series or some models Indesit) glass is often used instead acrylic plastic. At first glance, it may resemble glass - transparent, smooth, but in fact it is a thermoplastic based on polymethyl methacrylate (PMMA).

Advantages of acrylic:

• 💰 Low price (in 2-3 times cheaper than glass).
• 🛠️ Easy repair: minor scratches can be polished.
• ❄️ Not afraid of low temperatures (does not become brittle in the freezer).

However, acrylic has many more disadvantages:

• ❌ Low strength: it can crack from the weight of even an average pan.
• 🔥 Sensitivity to high temperatures (deformed from heat).
• 🧼 Absorbs odors and dyes (for example, from beets or turmeric).
• 🎨 Over time turns yellow and becomes cloudy.

Acrylic shelves are usually found in economy class refrigerators or in older models. If you see that the shelf is transparent, but when tapped it makes a dull sound (instead of a ringing sound like glass), most likely it is acrylic. It is not recommended to load such shelves with heavy products - the maximum load rarely exceeds 5-10 kg.

⚠️ Attention: Never place hot objects on an acrylic shelf - even a cup of tea can deform the surface. Also avoid cleaning with abrasive products (such as baking soda or metal pads), as they will leave permanent scratches.

How to determine the type of glass in your refrigerator

It is not always possible to immediately understand what kind of glass is used on the shelves. Here are several ways to determine the material:

1. Visual inspection:
   • 🔍 Tempered glass usually has a slight greenish or bluish tint when viewed from the end.
   • 🔍 Triplex upon careful examination, it shows a layered structure (a thin film is visible between glass).
   • 🔍 Acrylic more cloudy, may have a yellowish tint, especially in old refrigerators.
2. Tactile test:
   • 👆 Tap on shelf with your fingernail:
     • Resonant sound - glass.
     • Deaf sound - acrylic.
3. Strength test (caution!):
   • 💪 Gently press on the corner of the shelf:
     • If it bends - most likely, acrylic.
     • If it remains rigid - glass.

Checking documentation:

• 📄 The instructions for the refrigerator usually indicate the material of the shelves (look for the "Technical Specifications" or "Care" section).

If in doubt, you can use a flashlight: shine it from the end of the shelf. Tempered glass will transmit light evenly, and in triplex you will see darkened lines (these are adhesive layers). Acrylic may have uneven transparency, especially at the edges.

☑️ How to distinguish glass from acrylic

Look at the end (layering of triplex)Tap with your fingernail (a loud sound - glass)Check the deflection (acrylic bends)Shine it with a flashlight (uniform light - glass)

Done: 0 / 4

What to do if the shelf is cracked or broken

Even the most durable glass may crack due to careless handling. If this happens, follow the algorithm:

1. Disconnect the power to the refrigerator (pull the plug out of the socket) - this will eliminate the risk of electric shock when cleaning up the fragments.
2. Carefully remove the damaged shelf:
   • For tempered glass: use gloves and a dustpan to pick up the glass shards. Do not try to glue - it is useless.
   • For triplex: if the shelf is cracked, but has not crumbled, wrap the edges with tape to avoid cuts.
3. Check the warranty:
   • If the refrigerator is under warranty, contact a service center - some manufacturers (for example, Samsung or LG) replace shelves free of charge in case of manufacturing defects.
4. Choose a replacement:
   • Indicate the model of the refrigerator (located on a sticker inside the chamber or on the back) and order the original shelf from the manufacturer or in specialized stores (for example, 220-volt.ru, M.Video).
   • For older models, you can select universal shelves by size (measure the length, width and thickness).

Install a new shelf:

• Follow the instructions - some shelves are fixed with latches, others are simply inserted into grooves.

⚠️ Attention: If a shelf is cracked but not completely broken, do not continue to use it! Even a small crack under load can lead to sudden glass breakage, which is dangerous for products and users.

The cost of replacing a shelf varies from 1 500 to 10,000 rubles depending on the model of the refrigerator and the type of glass. For example, a shelf for Bosch KAN92VI30 will cost about ~3,500 rubles., and for Samsung RB37J5240SA - about 5,000 rubles.. (800–2 000 rub.), but may not fit perfectly in size.

Is it possible to repair a cracked glass shelf?

No, repair is impossible. Even if you glue the fragments with a special glue (for example, Loctite 330), the shelf will not restore its original strength and will be dangerous to use. replacement.

How to extend the life of glass shelves: care rules

Glass shelves in the refrigerator last for decades if you care for them properly. Here are the key recommendations:

• 🧼 Wash with warm water and a mild detergent (for example, Fairy or Ecover). Avoid abrasives!
• 🧽 To remove grease use a solution of vinegar (1:1 with water) or lemon juice.
• ❄️ Do not place hot objects —let them cool to room temperature temperature.
• 🥫 Distribute the weight evenly: place heavy products (cans, pots) closer to the center of the shelf.
• 🔄 Periodically rearrange the shelvesto avoid deformation of the guides.

To remove stubborn stains (for example, traces of stickers or paint products), you can use baking soda, but only in the form of a paste (soda + water), applied with a soft sponge. After cleaning, be sure to rinse the surface with water and wipe dry.

⚠️ Attention: Never use products containing chlorine (for example, Whiteness) to clean glass - they can damage the protective coating (if any) and cause clouding.

If scratches appear on the shelves, they can be masked with a special glass polish (for example, Glass Polish from 3MHowever, deep scratches that cling to your fingers are a reason to think about replacing the shelf, as they become a breeding ground). bacteria.

Myths and truth about glass shelves in the refrigerator

There are many myths around glass shelves. popular:

• 🔹 Myth: "Tempered glass does not break."

  Truth: It breaks, but not like normal glass. With a strong point impact (for example, the fall of a heavy knife), tempered glass crumbles into small fragments. However, it can withstand uniform loads. (for example, the weight of products) is much better.

• 🔹 Myth: "Triplex cannot be washed with detergents."

  True: It is possible, but only without abrasives. Aggressive chemicals (for example, oven cleaners) can damage. adhesive layer.

• 🔹 Myth: "Acrylic shelves are safer than glass."

  Truth: Acrylic does not crumble into fragments, but it is less durable and can crack from a small load, which is also dangerous (sharp the edges of plastic are cut no worse than glass).

• 🔹 Myth: "All premium refrigerators have triplex shelves."

  True: For example, in some models Liebherr they do. tempered glass with an antibacterial coating, which is not inferior in strength to triplex.

Another common misconception is that the thickness of the glass directly affects its strength. In fact, it is much more important processing technologyFor example, thin tempered glass (5–6 mm) is often stronger than thick regular (8–10 mm).

FAQ: Frequently asked questions about glass shelves

Is it possible to place a hot pan on a glass shelf of a refrigerator?

No, this cannot be done. A sharp temperature change can lead to cracks even in tempered glass. Even if the shelf does not crack immediately, microdamages accumulate and will lead to destruction over time. It is optimal to let the pan cool to room temperature (15–20). minutes), and then put it in the refrigerator.

Why are the shelves in the freezer made of glass and not plastic?

Glass tolerates low temperatures better than plastic. Acrylic shelves in the freezer become fragile over time and can crack even from a slight impact. In addition, glass does not absorb odors, which is critical for long-term storage of food. budget models where metal shelves are used in the freezer (for example, in refrigerators Biryusa).

What weight can a standard glass shelf in a refrigerator withstand?

It depends on the model and type of glass:

• Tempered glass: 15–30 kg on the shelf (on average).
• Triplex: 20–40 kg (due to additional layers).
• Acrylic: 5–10 kg (maximum).

However, these figures are conditional - a lot depends on the uniformity of weight distribution. For example, a 3 kg jar of cucumbers placed on the edge of a shelf can damage it, while 20 kg of products evenly distributed. distributed in the center, the shelf will withstand.

Is it possible to replace a glass shelf with a plastic or metal one?

Theoretically it is possible, but in practice this is fraught with problems:

• Plastic will not withstand the weight of the products and will quickly deform.
• Metal (for example, stainless steel) can rust in high humidity conditions.
• Non-original shelves may not be suitable in size or fastenings.

It is best to use shelves recommended by the manufacturer. If the original shelf is too expensive, look for universal glass analogues with suitable dimensions.

What to do if the shelf in the refrigerator is wobbly or sagging?

This is a common problem, especially in refrigerators with plastic guides. Solutions:

1. Check that the shelf is inserted correctly - sometimes it moves when pulled out.
2. Inspect the guides for cracks or deformation. If they are broken, replace them.
3. Place under the shelf silicone gaskets (available in hardware stores).
4. If the shelf is sagging due to weight, distribute the food more evenly or replace the shelf with a stronger one (for example, from triplex to tempered glass of greater thickness).

In some models (for example, Samsung RB) the guides can be adjusted using a hex key - information about this is in the instructions.