The sink is a product that every household kitchen uses. Everyone is familiar with it. But when it comes to buying one, most people only know about single or double basins, and top-mount, under-mount, or flush-mounted installation. Few learn about the more professional knowledge. This often leads to buying a sink without fully understanding it. After installation, problems like stains sticking to the sides, scratches, condensation, and loud water dripping sounds become obvious.
This article provides a comprehensive guide on kitchen sink selection. It summarizes 8 types of sinks to be cautious about. After reading this, you will know exactly what to look for when choosing a sink.
Think Twice About Compact Double-Basin Sinks
This doesn’t mean small double-basin sinks are bad. But a typical home frying pan is about 35cm (13.8 inches) in diameter. A kitchen sink should be at least wide enough to hold a pot. Otherwise, it loses practicality.
A double-basin sink with one large and one small basin can work well. The large basin should be at least 50cm (19.7 inches) wide to fit a pot. The small basin should be around 20cm (7.9 inches) to hold a veggie washing basket.
That said, a large single-basin sink offers more space. You can add a draining basket accessory. This acts like a semi-open divider. You get the spaciousness of a single basin and the functionality of a double basin. You can switch between uses freely based on your needs.
Another good option is a tiered sink. It washes pots as easily as a large single basin. It also saves water like a double basin. The tier acts as a draining rack. It’s more convenient than using a single basin with accessories. It also makes the space look brighter and more open. Washed dishes and veggies can be placed directly on it to drain. Everything is done in one go. Plus, it saves some space under the sink.
Therefore, it’s not recommended to choose a small double-basin sink. The other three types mentioned above are more practical. They all meet the need for separate washing areas.
Why 201 Stainless Steel Sinks Are a Risky Choice
Observant people may notice that most sinks have material markings. Everyone knows that sinks should be made of 304 stainless steel. But when you see the image below, you might feel confused. What are SUS and DUS?
Actually, SUS and DUS are two different materials. SUS304 is genuine stainless steel with good corrosion resistance. DUS304 is an alloy material containing chromium, manganese, sulfur, phosphorus, and other elements. It not only has poor corrosion resistance but also rusts easily. During use, it may release manganese, which is harmful to human health.
Additionally, some sinks are marked as 201. This is not pure stainless steel either. For non-branded products, don’t trust any markings blindly.
Since it’s hard to tell the material with the naked eye, you can use a stainless steel testing solution. It costs just a few dollars per bottle and is very easy to use. Just drip the solution onto the surface. If the color doesn’t change after about three minutes, it’s genuine stainless steel. If it turns red or another color, it’s a fake or inferior product.
When testing, make sure to check different parts of the sink: the edges, the interior, and the inside of the drain outlet.
As for other sink materials, such as stone (artificial stone, quartz) or ceramic sinks, they may look more stylish than stainless steel. However, they are more likely to be scratched, harder to clean, and more difficult to install. Choose based on your budget, preferences, and usage needs.
Reconsider Mirror-Finish Sinks
A mirror-finish stainless steel sink looks brand-new and shiny when first installed. It’s very aesthetically pleasing. But after some use, scratches will start to appear. At that point, your feelings about it will be completely different from when you first bought it. You might even dislike it.
After all, your kitchen is carefully decorated. If the sink becomes full of scratches soon after moving in, anyone would feel uncomfortable.
In comparison, a brushed stainless steel sink with a matte finish is more scratch-resistant. Some people worry that brushed surfaces might trap dirt. But in reality, the user experience isn’t much different from other sinks. If oil stains stick to it, a gentle wipe is enough to clean it.
The bigger difference in user experience comes from sinks with special coatings (like nano anti-oil glaze). These are slightly easier to clean than regular sinks. Water beads up and drains off almost completely on its own. Of course, they are also more expensive.
Therefore, it’s advisable to be cautious about mirror-finish sinks. For sinks with other finishes, you can choose based on your budget.
Skip Black Stainless Steel If You Hate Water Stains
I think it’s not just me. Anyone who has used black water-related fixtures at home has experienced the trouble of water stains. Moreover, black is different from other colors. Whenever water stains touch it, they leave obvious marks. So sinks are no exception.
The black sinks mentioned here refer to black stainless steel sinks, not some stone sinks. That’s because stone sinks are naturally black in material. Some people might say, “If I just stay diligent and clean it often, there won’t be problems.” The real challenge is consistency. You need to not only clean frequently but also wipe it dry immediately after every use. Otherwise, “white clouds” of water stains will appear all over it.
Be Cautious About Sinks Shallower Than 18cm
This is easy to understand. If it’s too shallow, water will splash out easily. If it’s too deep, you need to bend your waist at a greater angle, which can cause back strain and discomfort when washing dishes.
The recommended sink depth is 20-25cm (7.9-9.8 inches).
Why Sink Thickness Matters—And When It Doesn’t
First, it’s important to understand how sink thickness is measured. We’re talking about the thickness of the basin itself, usually measured at the drain outlet. This is not the same as the thickness of the outer rim, as some sinks have reinforced outer edges up to 3mm thick.
When it comes to choosing thickness, theoretically, thicker sinks offer better quality and durability. But in reality, different manufacturing processes result in significant differences in basin thickness. There are two main types: hand-welded and one-piece stamped.
Hand-welded sinks (as shown in the image below) are generally thicker than 1mm. They have higher production costs but can achieve beautiful small R-corners, providing better space utilization. There’s a small chance of leakage if not well made, but this is rare.
One-piece stamped sinks (as shown in the image below) have lower production costs. They feature large rounded corners inside and cannot achieve the elegant small R-corners, meaning less efficient space utilization. Additionally, because of the stamping process, which weakens the stainless steel’s original structure, many of these sinks are thinner than 1mm.
Therefore, in terms of thickness, hand-welded sinks are more durable and offer better space utilization than one-piece stamped sinks.
Another thing to note: some people avoid certain sinks claiming that “right-angle basins trap dirt and shouldn’t be chosen.” This is completely nonsense. I searched all night and even found sinks as cheap as $100, but none had true right angles. Some people who pretend to be knowledgeable mistakenly identify sinks with small R-corners as right-angle basins.
Center-Drain Sinks: A Storage Space Killer
Sinks with rear drains or side-positioned drains allow the drainage pipes to be positioned toward the back or side. This means the storage space inside the cabinet won’t be divided in the middle, providing more usable space.
Additionally, a slightly larger drain strainer offers a better user experience than a small one. When debris accumulates in the drain, you can simply lift and dump it out instead of having to scrape it out by hand.
It’s also important to understand drainage pipes. The V-shaped curved drain pipe shown in the image above tends to retain water at the bend, which can ferment and cause odor issues. Instead, choose a U-shaped side-drain pipe as shown in the image below.
Side-drain pipes run vertically along one side of the cabinet, freeing up more storage space. Moreover, it’s better to choose a drain pipe with a check valve, as this effectively prevents insects and odors from entering the kitchen through the drainage pipe.
Sinks with Gimmicky Features: Are They Worth It?
Examples include knife holders and chopstick baskets. Don’t assume that additional features on a sink will be practical. Because these areas are frequently exposed to water, they can easily breed bacteria and mold, making such storage options unhygienic
Also, remember that any extra features aren’t free—you’re ultimately paying for them. In comparison, useful features include:
- Soap dispensers (most sinks have these, and even if not, there’s usually a hole reserved for dish soap).
- Anti-condensation coating.
- Soundproofing pads.
Soundproofing pads are usually rectangular soft pads attached to the sides of the sink (as shown in the image above). They effectively reduce the ticking sound of water hitting the sink walls.
The anti-condensation coating is applied to the entire back of the sink and feels slightly gray to the touch. Without this coating, alternating use of cold and hot water will cause condensation droplets to form on the sink walls, leading to moisture and mold inside the cabinet.
Therefore, when choosing sink features, focus on practical additions like anti-condensation coating and soundproofing pads.
Conclusion
The above covers eight types of kitchen sinks that consumers should be cautious about. Of course, everyone has different preferences when it comes to sinks. Purchase decisions can be made based on individual likes and needs. By understanding the characteristics of these eight sink types, you’ll be better equipped to make an informed choice.
