Cleansol Guide · Laundry
How to use neel (liquid blue) for white clothes – the right drops, no blue patches
A few drops of blue in the last rinse is one of the oldest laundry tricks in India – and still the cheapest way to make white shirts, uniforms and bedsheets look crisp again. Get the dose or method slightly wrong, though, and you get blue streaks instead. Here is exactly how much to use, when to add it and how to fix mistakes.
2–3 drops
per bucket of 8–10 L
Last rinse
never in the wash
Dilute first
never neat on cloth
Pale sky-blue
the right water colour
Quick answer: Wash and rinse your white clothes as usual. Fill a bucket with 8–10 litres of clean water, add 2–3 drops of liquid blue and stir until the water is evenly pale sky-blue. Dip the clothes one by one for a few seconds, squeeze and dry in the shade – no further rinse. In a machine, pre-mix 4–6 drops in a mug of water and add it to the last rinse.
Used in this guide
Cleansol Liquid Blue for White Clothes
500 ml squeeze bottle · about 10,000 drops · GST invoice
In this guide
What neel actually does
White cotton does not stay perfectly white. Sweat, body oil, hard water, detergent residue and plain age give it a faint yellow or creamy tint – even when it is clean. Blue and yellow are opposite colours, so a very light blue tint in the fabric cancels that yellow. The eye reads the result as a cleaner, crisper white.
✅ What neel does
Balances a slight yellow tint so whites look brighter and fresher.
❌ What neel does not do
Remove stains, dirt or deep yellow marks – it is not a bleach or detergent.
💡 So use it
As the last, finishing step on clothes that are already clean.
How much neel to use
| Use | Water | Liquid blue |
| Bucket rinse | 8–10 L | 2–3 drops |
| Half bucket | 4–5 L | 1–2 drops |
| Home washing machine | Last rinse | 4–6 drops, pre-mixed in a mug of water |
| Commercial machine | Per 100 L final-rinse water | About 30 drops (1.5 ml) |
Doses for Cleansol Liquid Blue (concentrated). Other brands differ – always start low. The water should look pale sky-blue, never dark blue.
Bucket method – step by step
1 · WASH FIRST
Wash and rinse the white clothes with detergent as usual.
2 · MIX
Add 2–3 drops to 8–10 L of clean water. Stir until the colour is even.
3 · DIP
Dip clothes one by one and swirl for a few seconds so every part is wet.
4 · DRY
Squeeze and dry in the shade. Do not rinse again.
💧 Tip: add the drops to the water and stir before putting any clothes in. Blue landing directly on wet cloth is the main cause of patches.
Using neel in a washing machine
Front-load: mix 4–6 drops in a mug of water and pour it into the softener compartment – the machine releases it in the last rinse.
Top-load and semi-automatic: let the last-rinse water fill, add the pre-mixed blue, let it mix for a moment, then run the rinse.
Never pour neat liquid blue into the drum or onto clothes. Concentrated blue sticks to the first fabric it touches and leaves patches.
Hotels, hospitals and commercial laundries
In a commercial wash, blue goes into the final rinse – after the main wash, the bleach step and the rinses – usually together with a fabric sour.
| Stage | What to add | Cleansol product |
| Main wash | Detergent (+ booster for oily linen) | Ultra Detergent |
| Bleach step | Whitener for white linen | Fabric Whitener Liquid |
| Final rinse | Neutralise leftover alkali & bleach | Fabric Sour |
| Final rinse | About 1.5 ml blue per 100 L, pre-diluted | Liquid Blue |
🧮 Exact doses for your machine: use our free laundry dosing calculator, or see the complete Cleansol laundry system.
Blue patches or a blue tint? Here is the fix
Still wet?
Rinse straight away in plenty of clean water. Most excess blue comes out before the fabric dries.
Already dried?
Wash again with detergent in warm water. Repeat once or twice if needed.
Next time
Use fewer drops, stir the water fully, and never pour blue directly on cloth.
Neel vs fabric whitener vs oxygen bleach
| Your whites are… | Use | Why |
| Clean but dull or creamy | Liquid Blue in the last rinse | Balances the yellow look |
| Stained, grey or clearly yellow | Fabric Whitener Liquid soak, then blue | Removes stains and yellowing |
| Whites and colours together | Oxygen Bleach in the wash | Gentle, safe on colour-fast clothes |
| Turn yellow after ironing | Fabric Sour in the final rinse | Removes alkali residue |
Read more: How to use liquid bleach on white clothes · Oxygen bleach – how to use.
Frequently asked questions
Cleansol Liquid Blue for White Clothes
Concentrated last-rinse fabric blue · 2–3 drops a bucket · no bleach, no optical brightener, no added fragrance.
Shop Liquid Blue → Complete laundry system →Related: How much detergent per kg of clothes · Commercial laundry process · Oil & grease stains
Always follow the garment care label and the product label. Keep laundry products away from children.