Sugar, Bura and Powdered Jaggery — Water Screen for Chalk

What this FSSAI screen does

FSSAI's DART material gives a very simple check for chalk powder in sugar, bura sugar and powdered jaggery. The sample is dissolved in water. Sugar dissolves readily, while chalk is not expected to dissolve in the same way and can settle at the bottom. Kitchen Check should present this as a quick insoluble-sediment screen, not as a complete authenticity test.

Use only water

The consumer-safe version needs only clean water and a transparent glass. Do not add hydrochloric acid or another chemical to make bubbles or confirm the deposit. FSSAI also has laboratory methods using acid for chalk and washing soda, but those are not appropriate for a household workflow. The home check should stop at observation of sediment.

Jaggery can naturally leave some residue

Powdered jaggery is less refined than white sugar and can contain tiny plant, fibre or processing particles. A small natural residue is therefore not automatically chalk. Kitchen Check should ask whether the deposit looks unusually heavy, pale and mineral-like rather than simply whether any particle is visible. When the result is mild or mixed, the correct label is 'unclear'.

Do not call a clear solution '100% pure'

If no visible sediment appears, this rapid screen simply did not show obvious chalk-like material. It says nothing about urea, synthetic colour, microbial contamination or other adulterants. The user interface should therefore avoid a green purity certificate. One negative screen is one negative screen, not proof of total purity.

Repeat only once if unclear

If the glass is cloudy or the sample did not dissolve properly, use a clean glass and fresh water and repeat once. Do not keep testing until the desired answer appears. Repeated home checks do not create laboratory certainty and can make it harder to preserve an uncontaminated sample for complaint or testing.

Keep purchase details

Note the brand or vendor, batch number, packed date and place of purchase when a result is repeatedly suspicious. For loose jaggery, vendor and date are especially useful. Keep most of the product untouched. FSSAI provides official testing and consumer grievance routes when confirmation matters.

Recommended result wording

Use 'No obvious chalk-like sediment in this rapid screen', 'Unclear—natural residue may be present', or 'Heavy pale insoluble sediment seen—screen suspicious'. The wording should stay narrow because the method only observes insoluble material.

Keep the screen product-specific

White sugar, bura and jaggery do not look identical in water. Kitchen Check should therefore show the name of the selected product at the top of the result card and use product-specific examples. A small amount of sediment in jaggery may be less surprising than the same amount in refined white sugar. This prevents one universal threshold from being applied to three different foods.