A very common misconception: “If I’m already using an all-in-one detergent tablet, why do I need salt and rinse aid?” In reality, given the water conditions in most parts of Vietnam, using only an all-in-one tablet is often not enough. Let’s understand the correct role of each product.
What’s integrated into all-in-one tablets — and why isn't it enough?
All-in-one tablets contain a small amount of water softening and rinse aid agents. This amount is sufficient for soft to medium water conditions. However, if your home uses hard water (high in calcium and magnesium — very common in Vietnam), that integrated amount is not enough to process it all, leading to:
- Glassware appearing cloudy with white spots after washing.
- Limescale buildup in the machine’s interior, leading to degradation over time.
- Dishes that “never quite get clean.”
Dishwasher Salt: Softens Water, Protects the Machine
Dishwasher salt is not table salt — it's a specialized pure salt that helps soften hard water through the machine’s water softener compartment. When water is properly softened: dishes get deeper cleaning, reducing cloudy spots; the filtration system and machine interior are less prone to limescale buildup → the machine lasts longer.
If your area has hard water (from ~8 °dH upwards), adding salt is almost mandatory — even when using an all-in-one tablet.
Rinse Aid: Faster Drying, No Water Spots
Rinse aid (also called drying aid) reduces the surface tension of water, helping it run off instead of forming droplets. The result: dishes, especially glassware and plastic, dry faster and are sparkling clean; no more water stains. A 1-liter bottle typically lasts for 200+ washes.
Optimal & Economical Usage
The “standard” dishwasher setup includes 3 steps: detergent tablet (cleaning) → salt (water softening) → rinse aid (drying, shine). The most economical way is to use a Classic tablet + salt + rinse aid instead of just buying expensive all-in-one tablets.
👉 Investing in the right set of products not only helps your dishes look cleaner and more beautiful but also protects your multi-million dong dishwasher. See the German genuine economical combo at sieutietkiem.com.