Kitchen & Dishwashing Products Used-For Guides

What Kitchen & Dishwashing Products covers

This section covers kitchen cleaning and dishwashing products, with dishwasher salt attracting most of the questions.

Dishwasher salt is genuinely misunderstood, and the confusion is understandable because nothing about it is obvious. It is not a detergent, it does not clean anything, and it never touches your dishes. It regenerates the water softener built into the machine.

Here is why that matters. Hard water contains dissolved calcium and magnesium. Run it through a dishwasher and those minerals deposit as limescale on the heating element and the internal parts, and leave white spots and film on glassware. A dishwasher contains a small softening unit — a resin that swaps those minerals for sodium — and that resin becomes saturated and stops working. Dishwasher salt recharges it. Without salt, the softener stops, limescale builds, and the machine’s life shortens.

Two things follow. Dishwasher salt is not table salt. It is coarse, very pure sodium chloride without the anti-caking agents and iodine in table salt, which would clog and damage the softening unit. And all-in-one tablets do not fully replace it in hard water areas — most manufacturers still recommend separate salt where water is genuinely hard, and machine manuals say so.

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Most searched questions in this topic

How the guides in this section differ

Salt, detergent or rinse aid. Three separate products doing three separate jobs. Salt regenerates the softener. Detergent cleans. Rinse aid reduces water spotting and helps drying. All-in-one tablets combine detergent with some rinse-aid and softening function, which is not the same as dedicated salt.

Machine or hand washing. Dishwasher detergent is far more alkaline than hand dishwashing liquid and must never be used for hand washing. The reverse is worse: hand dishwashing liquid in a dishwasher produces a foam overflow that floods the kitchen.

Water hardness. How much salt a machine needs depends on local water hardness, which varies considerably across South Africa. Machines have a hardness setting that should be matched to the local supply.

Product	Job	Common mistake
Dishwasher salt	Regenerates the water softener	Using table salt; skipping it with tablets
Dishwasher detergent	Cleans the load	Using it for hand washing
Rinse aid	Reduces spotting, aids drying	Assuming tablets always replace it
Hand dishwashing liquid	Hand washing	Putting it in the machine

Safety, accuracy and next-step checks

These guides follow product labels and machine manufacturer guidance. Where your machine’s manual differs, follow the manual.

Points worth carrying:

Never use table salt in a dishwasher. Anti-caking agents and additives clog and damage the softening unit, and the repair costs far more than the salt saved.
Never put hand dishwashing liquid in a dishwasher. It foams enormously and floods the floor.
Dishwasher detergent is corrosive. It is strongly alkaline and causes serious mouth and throat burns if swallowed. Tablets in particular resemble sweets — store them high, latched and out of reach, and do not leave the dispenser loaded within a child’s reach.
Do not use dishwasher detergent for hand washing. It is not formulated for skin contact.
Set the machine’s hardness setting to match your local water rather than leaving it at the default.
Fill the salt reservoir carefully. It is normal for a little water to overflow when refilling. Wipe up spilled salt to avoid corrosion.
Rinse before disinfecting or storing. Detergent residue on cookware is unpleasant and, in quantity, irritating.
If detergent is swallowed or gets in an eye, seek medical help immediately and take the packaging.

One more piece of practical advice about dishwashers generally: most performance complaints are not detergent problems. Cloudy glasses usually mean the softener needs salt or the hardness setting is wrong. Poor cleaning usually means the filter needs emptying or the spray arms are blocked. Food residue on the bottom rack often means the machine is overloaded. All three are quick to check and cost nothing, and all three are worth ruling out before changing product or calling a technician.

Frequently asked questions

What is dishwasher salt used for? Regenerating the water softener inside the machine. It does not clean dishes and never touches them.

Can I use ordinary table salt instead? No. Table salt contains additives that clog and damage the softening unit. Dishwasher salt is coarse and pure for that reason.

I use all-in-one tablets. Do I still need salt? In hard water areas, usually yes. Most manufacturers recommend separate salt where water is genuinely hard. Check your machine’s manual.

Why are my glasses cloudy? Commonly limescale from hard water — a sign the softener needs salt or the hardness setting is wrong. Permanent etching is different and cannot be reversed.

Is dishwasher detergent dangerous? It is strongly alkaline and causes serious burns if swallowed. Tablets look like sweets, so store them out of reach of children.