What should not be placed on a composite granite sink?

07-03-2025

With the diversification of kitchen decoration styles, composite granite sinks have become the first choice for many families and commercial kitchens due to their beauty, durability and strong anti-fouling ability. However, despite the strong performance of composite granite sinks, their surface still needs careful maintenance to maintain their beauty and long-term functionality. Therefore, it is very important to know what items should not be placed on composite granite sinks to extend their service life and avoid damage.


This article will explore in depth the items that should not be placed on composite granite sinks, analyze the possible harm, and provide reasonable maintenance suggestions to help users better maintain the sink in daily use and ensure that it remains in the best condition for a long time.

composite granite sink

What are the material characteristics of composite granite sinks?

Composite granite sinks are made of natural granite and resin. They have the durability of granite, and the addition of resin also enhances their anti-fouling, anti-scratch and anti-corrosion capabilities. The surface of this type of sink is usually smooth and has a certain texture, with a variety of colors, which can match the decoration style of modern kitchens and meet the high-intensity needs of daily use.


Although composite granite sinks have many advantages, they are not invulnerable. There are still some items that should not be touched for a long time, especially items that may affect the appearance of the composite granite sink and damage its structure. Therefore, when using a composite granite sink, it is very important to know which items should not be placed on it.

granite sink

What should not be placed on a composite granite sink?

High-temperature items

High-temperature items are common in daily kitchen use, especially during cooking, when you often need to touch some hot pots, hot water or freshly baked baking trays. Although composite granite sinks have a certain degree of heat resistance, long-term exposure to high temperature environments may still cause damage to the surface of the sink. Excessive temperature will cause aging or deformation of the resin material on the surface of the sink, affecting the appearance and durability of the sink.


● Dangerous items: hot pots, freshly baked baking trays, hot water kettles, woks, etc.

● Hazards: High temperatures cause the surface of the sink to yellow and deform, and even crack or break in extreme cases.

● Recommendation: To avoid this situation, it is recommended to use tools such as heat insulation pads and pot pads when placing hot items, and avoid placing hot items directly on the composite granite sink.


Acidic or strong alkaline substances

Strong acids and strong alkaline substances may cause chemical damage to the surface of the composite granite sink, causing discoloration, corrosion, or even shedding of the sink surface. Common acidic or alkaline substances in the kitchen, such as lemon juice, vinegar, ketchup, detergents, etc., may have adverse effects on the sink after long-term contact.


● Dangerous items: Strong acidic substances (such as vinegar, lemon juice, tomato juice), strong alkaline detergents, etc.

● Hazards: Acidic or alkaline substances may corrode the surface of the composite granite sink, causing color difference, surface corrosion or wear.

● Recommendation: Avoid long-term contact between acidic or strong alkaline substances and the sink surface. If such substances are accidentally splashed, they should be rinsed immediately with clean water and cleaned with a neutral detergent.


Sharp objects

The surface of composite granite sinks has strong scratch resistance, but it is not completely immune to scratches from sharp objects. For example, large knives, sharp kitchen utensils, heavy objects, etc., if in contact with the sink surface for a long time, may cause irreparable scratches or surface wear, affecting the appearance and function of the sink.


● Dangerous objects: Sharp knives, metal brushes, sharp kitchen utensils, etc.

● Hazards: Scratches the surface, affecting the appearance and cleanability of the sink.

● Recommendations: When using knives or other sharp objects, try to avoid placing them directly on the sink surface. You can use a cutting board or tray in the sink to avoid direct contact with the sink.


Grease and dirt

Grease, food residues and dirt accumulated over a long period of time will form stains on the surface of the composite granite sink, especially near the sink drain. These stains not only affect the appearance of the sink, but may also gradually penetrate into the sink surface, causing surface contamination. In particular, oil stains are easy to adhere to the surface of the composite granite sink, are not easy to clean, and long-term residue will affect the gloss of the sink.


● Dangerous items: Grease, food residue, heavy stains.

● Hazards: Grease and stains accumulated over a long period of time may cause discoloration and corrosion on the sink surface, and make it more difficult to clean.

● Recommendations: Clean food residue and grease from the sink regularly, and use appropriate detergents to clean it to keep the sink surface clean and smooth.


Heavy objects and large objects

Although composite granite sinks are durable, if heavy objects are placed for a long time, it may cause pressure on the sink, especially on the edge of the sink. Long-term stress may cause the sink to deform or crack, affecting its appearance and performance.


● Dangerous items: Heavy cookware, heavy objects, porcelain, glassware, etc.

● Hazards: Long-term accumulation of heavy objects may cause the edge of the sink to deform or crack under pressure.

● Recommendations: Try to avoid placing heavy objects directly in the sink, especially for a long time. For large kitchen utensils or heavy objects, it is recommended to place them on the countertop or other places instead of directly in the sink.


Corrosive cleaners and chemicals

Using highly corrosive or unsuitable cleaners may cause irreversible damage to the surface of composite granite sinks. For example, ammonia, bleach, chloride cleaners, etc. may cause damage to the surface of the sink, causing the color of the sink surface to change or be damaged.


● Dangerous items: bleach, ammonia, chloride cleaners, etc.

● Hazards: Strongly corrosive cleaners will damage the surface coating of the sink, causing the sink surface to lose its gloss or fall off.

● Recommendations: Use mild cleaners and avoid using cleaning products containing strong corrosive ingredients such as chlorine and bleach. If deep cleaning is required, you can choose a cleaner designed specifically for composite granite.

composite granite sink

How to maintain and clean composite granite sinks?

In order to maximize the service life of composite granite sinks and maintain their beauty, users should take some daily maintenance measures:


Clean the sink regularly

Use neutral detergent and soft cloth to clean the sink surface, and avoid using cleaning tools such as hard brushes or metal wire balls that may cause scratches. Clean up food residues every day and make sure the sink is dry.


Prevent stain accumulation

When cooking or washing food, avoid grease, juice or food residues accumulating on the surface of the composite granite sink for a long time. Try to use a vegetable basket or plate to avoid placing food directly in the sink.


Avoid high temperature contact

Use heat-insulating tools such as pot pads and heat pads to avoid placing high-temperature pots directly into the sink. Especially when washing pots, avoid high-temperature pots from coming into contact with the composite granite sink.


Deal with spilled liquids in a timely manner

If acidic or alkaline substances are splashed, rinse them with clean water immediately to avoid corrosion or discoloration on the surface of the composite granite sink.


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