Selling by weight is a different transaction
A weighed item has no fixed price. The price is produced at the counter from a live weight and a rate per kilo, which means the POS has to read the scale, do exact arithmetic, and print a line the customer can verify. Systems that treat weighed goods as ordinary items push all three onto the cashier.
What goes wrong when the software does not support it:
- Mental arithmetic under queue pressure — reliably the slowest and least accurate step at the counter.
- Rounding drift. Money computed in floating point instead of exact units produces cent discrepancies that only show up at close, when nobody can reconstruct them.
- An unverifiable receipt. If the printed line does not show the weight and the rate, the customer cannot check it and neither can you.
How ThaliPOS handles a mithai counter
- A connected scale rings the exact weight. Select a weighed item, the counter reads the scale, and the line is priced from the live weight at your rate per kilo.
- Exact arithmetic, always. Weights are carried in whole grams and money in integer cents — never floating point — so the day reconciles to the cent rather than to nearly.
- The receipt shows the working. The weight appears on the line, so the customer can check it against the scale they just watched.
- Weighed lines are quantity-locked. A weighed line cannot be casually incremented into nonsense — a second box is a second weighing.
- Barcode scanning for packaged goods. Boxed items, namkeen and gift packs scan on a plain keyboard-wedge scanner, including variable-weight barcodes produced by a deli scale.
This is the part of the product with the most hardware surface, and it is deliberately ordinary hardware: a serial scale and a plain scanner, bought wherever they are cheapest. The hardware list →
Festival weeks
Diwali is not a busy week, it is a different business — the queue triples, the average basket changes shape entirely, and much of the volume is assortment boxes rather than counter selections.
Two things help most. A kiosk lane takes pressure off the counter using hardware you already own, turned to face the guest. And offline-first operation means the one week you genuinely cannot afford a connection problem is the week it cannot cause one.
Weigh-and-pay, barcode scanning, kiosk, offline operation
✓ available in pilotThe counter mechanics of a mithai shop, including the scale and scanner integration.
Festival pre-orders and box assortment stock
✓ built · pilot validation pendingSweet-shop mode covers weigh pricing, assortment combos, gift receipts and festival pre-orders. Built; a Diwali week is exactly the kind of load it has not yet been through in production.