📝 Anyone who sells food · ⏱️ 3 min read

How do I determine if I should test a new dish as a...

📝 KitchenNmbrs — · updated 07 Apr 2026

Quick answer
Every new dish sits somewhere between goldmine and money pit before you know which. Most restaurant owners skip the testing phase and add dishes straight to their permanent menu. Smart operators run it as a special first to see if customers actually want it AND if the numbers work.

Every new dish sits somewhere between goldmine and money pit before you know which. Most restaurant owners skip the testing phase and add dishes straight to their permanent menu. Smart operators run it as a special first to see if customers actually want it AND if the numbers work.

Why test as a special first?

Specials give you breathing room to mess up without hurting your reputation. You can tweak portion sizes, adjust cooking methods, and change prices without customers getting confused.

  • You test popularity without committing
  • You can dial in the food cost
  • Your chef gets practice with the prep
  • You discover if it matches your crowd

The test criteria for a successful dish

Any dish needs to hit three marks before it earns a spot on your permanent menu:

? Example test criteria:

  • Popularity: At least 15% of guests order it
  • Food cost: Stay under 32%
  • Operational: Chef can make it during busy service

1. Track popularity

Count how many guests order the special versus your total covers. If it's under 10%, customers aren't biting.

2. Verify profitability

Calculate the real food cost after seven days. Include everything - garnishes, sauces, the works. Then divide by your selling price minus VAT.

⚠️ Important:

Always use the price excluding VAT in your calculations. That €26.00 dish with 9% VAT? It's really €23.85. Skip this step and your food cost looks artificially low.

3. Check operational reality

Can your chef execute this dish during Saturday night rush? Do you need special ingredients that suppliers often short you on? Does prep time kill your flow?

How long should you test before deciding?

Run tests for minimum two weeks, but four weeks gives you better data. This captures different crowd types and service conditions. From tracking this across dozens of restaurants, the four-week window eliminates most false positives.

? Example test period:

  • Week 1-2: Basic testing, tweak food cost
  • Week 3-4: Refined version, lock in final numbers
  • Week 5: Make your call

What do you do with the test results?

After testing wraps up, you've got three paths:

Option 1: Add to permanent menu

  • Popularity above 15%
  • Food cost under 32%
  • Kitchen can handle it during rush

Option 2: Tweak and test again

  • Good popularity but food cost too high
  • Great taste but too complex to execute
  • Portion size needs adjustment

Option 3: Kill it permanently

  • Popularity stuck under 10%
  • Food cost can't drop below 35%
  • Too many complaints or returns

How do you record the test results?

Track these numbers daily:

  • Portions sold
  • Exact ingredient costs per portion
  • Prep time required
  • Customer and staff feedback

? Example calculation after 2 weeks:

  • Sold: 45 portions out of 280 covers = 16% popularity ✓
  • Food cost: €7.20 on €24.00 excl. VAT = 30% food cost ✓
  • Preparation time: 8 minutes (doable) ✓

Decision: Add to permanent menu

Food cost calculators can track these numbers automatically and show you right away if a special has what it takes to go permanent.

Related articles

How do you test a new dish as a special?

1

Calculate the food cost and set a test price

Add up all ingredient costs and calculate your food cost percentage. Set the price so you stay under 32% food cost. This is your starting price for the test.

2

Test for 2-4 weeks and record daily

Track how many portions you sell, what the exact costs are, and how long preparation takes. Also note feedback from guests and the kitchen.

3

Evaluate popularity, profitability, and feasibility

If more than 15% of your guests order it, food cost stays under 32%, and it's operationally feasible, you can add it to your fixed menu.

✨ Pro tip

Test new specials during your slower Tuesday and Wednesday services first. Your kitchen team gets 3-4 practice runs before the weekend rush, and you can spot prep issues before they become disasters.

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Frequently asked questions

How long should I test a special before deciding?
Run it for at least 2 weeks, but 4 weeks gives you better data. This captures different crowd types and service conditions so you get reliable numbers on both popularity and profitability.
What's good popularity for a special to add it to the permanent menu?
If more than 15% of your guests order the special, it's performing well. Under 10% means it's not connecting with your customers.
Can the food cost of a special be higher than regular menu items?
Yes, you can push specials up to 35% food cost since you're selling fewer portions. For permanent menu items, stay under 32% to protect your margins.
What if a special is popular but not profitable?
You've got two moves: bump the price or cut the food cost with cheaper ingredients or smaller portions. Test the changes before making it permanent.
Can I test multiple specials simultaneously?
Don't do it. Test one special at a time so you get clean data. Multiple specials muddy the waters and you won't know which one's actually working.
Should I announce a dish as a special or just quietly offer it?
Always announce it as a special so customers know it's temporary. This creates urgency and makes it easier to measure genuine interest versus curiosity.
What if my special performs well on weekends but poorly on weekdays?
Consider making it a weekend-only permanent item or adjust the price point for different days. Some dishes naturally fit certain service periods better than others.
ℹ️ This article was prepared based on official sources and professional expertise. While we strive for current and accurate information, the content may differ from the most recent regulations. Always consult the official authorities for binding standards.

Sources consulted

Food Standards Agency (FSA) — https://www.food.gov.uk

The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.

JS

Written by

Jeffrey Smit

Founder & CEO of KitchenNmbrs

Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.

8 years kitchen manager at 1NUL8 Group Rotterdam
Expertise: food cost management HACCP kitchen management restaurant operations food safety compliance

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