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3 Ways to Sell Food That Really Lift Restaurant Sales

21 October 2026

3 Ways to Sell Food That Really Lift Restaurant Sales

Restaurants sell through 3 main channels: dine-in, ordering and paying by phone (mobile ordering), and delivery through apps such as Grab. Dine-in builds regulars, mobile ordering speeds up taking orders, and delivery reaches customers beyond your area. Restaurants that use all 3 together bring in sales all day long.

How many ways can a restaurant sell food?

Restaurants in Thailand sell through 3 main channels:

  • Dine-in: customers eat at the restaurant and order with staff or through the POS.
  • Order and pay by phone: customers scan a QR code or open the restaurant's link, choose from the menu and pay for themselves.
  • Delivery: customers order through a delivery app such as Grab.

How can you sell more to dine-in customers?

Dine-in is a restaurant's main channel and where regulars come from. What lifts sales here is fast payment and enough staff time to look after every customer.

  • Use a POS that takes orders and splits bills by table.
  • Accept several ways to pay: PromptPay QR, cards and cash.
  • Find your best sellers in your sales reports and build promotions around them.

What is mobile ordering, and how does it raise profit?

Mobile ordering lets customers scan a QR code on the table or open a link from the restaurant's page, choose from the menu themselves and pay online straight away.

The benefits of mobile ordering:

  • Shorter queues at peak times, because customers don't wait for staff to take their order.
  • Fewer wrong orders, because customers choose for themselves and orders go straight into the system.
  • More time for staff to serve and look after customers.
  • Many ways to pay, such as PromptPay QR, mobile banking and credit/debit cards.

Is selling through Grab delivery worth it?

Delivery through Grab is worth it when you want new customers outside your area, or more sales when the dining room is quiet. The thing to watch is the GP fee the platform takes from every order, so price your delivery menu with the GP built in.

  • Choose dishes that still taste good after the delivery trip.
  • Work out the right price for each dish.
  • Use Treats Loyalty to print a points QR code at the bottom of the receipt, so delivery customers can start collecting points and come back to you directly.

How do you combine all 3 channels for the most profit?

Let each channel do its own job, then gradually move customers to the channel that earns you more.

  • Use dine-in to create the experience and build regulars.
  • Use delivery to introduce new customers to your restaurant.
  • Invite delivery customers and regulars to order by phone, a channel with no GP to share.
  • See sales from every channel in one report, to find which channel makes the most profit.

How does Qashier help restaurants sell through several channels?

Qashier is a POS and payment system for SMEs in Thailand. It covers in-store selling and Qashier Mobile Ordering, so customers can order and pay by phone.

  • Online payment by PromptPay QR, mobile banking (K PLUS, SCB Easy, Krungsri, Bangkok Bank, Make) and Visa/Mastercard cards.
  • Customers finish paying on Qashier's checkout page, with no jump to another website.
  • Online and in-store sales sit in one report, with fees, VAT and net sales separated automatically.
  • Issue full or partial refunds from QashierHQ.

FAQ

What are the ways to sell food? There are 3 main channels: dine-in, ordering and paying by phone, and delivery through apps such as Grab.

What is a QR code for ordering food? A QR code the restaurant places on the table or shares online. Customers scan it to open the menu, then order and pay from their own phone.

Can a small restaurant use mobile ordering? Yes. It suits restaurants with few staff or long queues at peak times, because customers order for themselves, which cuts the work of taking orders.

How can customers pay through Qashier Mobile Ordering? PromptPay QR, mobile banking (K PLUS, SCB Easy, Krungsri, Bangkok Bank, Make) and Visa/Mastercard cards.

Run your shop better with Qashier, starting today

If you'd like Qashier to help run your restaurant, get in touch. We can help with a restaurant POS or a POS for shops, and support from our team 7 days a week.

Find out more on LINE Official @qashier.th or call 02 544 0267.

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