The cost of a smoothie or acai bowl is the sum of four things per portion: the blended base, the fruit on top, the dry toppings and the packaging. Then comes the part most people never count: the "free" toppings and the granola that gets scooped with a heavy hand. Weigh those five parts once and you know what each bowl leaves you, and whether your price holds up.
Break the bowl into parts
Cost a bowl the way you would cost a plated dish. There is no single ingredient; there are layers, and each has its own price per gram.
- Base: frozen acai, banana, milk or juice. Everything that goes into the blender.
- Fruit on top: strawberries, sliced banana, mango, blueberries.
- Dry toppings and drizzles: granola, honey, coconut, chia, peanut butter.
- Packaging: bowl and lid, spoon, napkin, sticker.
- The extra that walks out: free toppings and eyeballed portions.
For each ingredient you need two numbers: what you paid for the pack and how many grams go into one bowl. Divide the price by the grams in the pack, then multiply by the grams in the bowl.
Cost fruit by what is left after prep
The usual mistake with fruit is using the price per kilo straight off the receipt. Bananas lose their peel. Berries lose the mouldy ones and the squashed ones at the bottom of the punnet. Weigh what you keep and cost from that. If a 250 g punnet of blueberries at $4.00 gives you 225 g you can use, your blueberries cost $4.00 ÷ 225 = $0.0178 per gram, not $0.016. The real cost per usable kg after trim tool does that step for you.
Weigh the portion, do not imagine it
A "heaped scoop" of granola can be 25 g one day and 45 g the next. To cost a bowl you need a fixed portion: weigh the base and each topping on kitchen scales for a week and take the average. Then set a measure (a portion scoop, a small cup, a dispenser) so everyone on the line serves the same amount. The guide to portion control covers how to set those measures and keep them.
Worked example: an acai bowl at a smoothie bar
You sell a 16 oz acai bowl for $12.00 before tax. These are your own purchase prices and your own weights.
Base
- Frozen acai: 4 packs of 100 g for $6.00, so $0.015 per gram. You use 200 g: 200 × 0.015 = $3.00
- Frozen banana: $1.60 per kilo, and you keep 650 g after peeling, so $2.46 per usable kilo. You use 80 g: $0.20
- Oat milk: $2.40 per litre. You use 60 ml: $0.14
- Base total: 3.00 + 0.20 + 0.14 = $3.34
Included toppings
- Blueberries: 40 g at $0.0178 per usable gram: $0.71
- Sliced banana: 40 g at $2.46 per usable kilo: $0.10
- Granola: $8.00 per kilo. You use 30 g: $0.24
- Honey: $9.00 for 500 g. You use 15 g: $0.27
- Toppings total: 0.71 + 0.10 + 0.24 + 0.27 = $1.32
Packaging
- Bowl with lid $0.45, spoon $0.06, napkin and sticker $0.04: $0.55
Planned direct cost: 3.34 + 1.32 + 0.55 = $5.21
Now the part that was not in the recipe. You offer peanut butter, coconut and cacao nibs as free extras. You weighed 20 bowls, and this is what customers add on average:
| Extra | Average grams | Pack price | Cost per bowl |
|---|---|---|---|
| Peanut butter | 20 g | $8.00 per kg | $0.16 |
| Coconut | 10 g | $8.00 per kg | $0.08 |
| Cacao nibs | 8 g | $25.00 per kg | $0.20 |
| Extra granola (45 g instead of 30 g) | 15 g | $8.00 per kg | $0.12 |
| Total | $0.56 |
Real direct cost: 5.21 + 0.56 = $5.77
| Planned | Real | |
|---|---|---|
| Direct cost | $5.21 | $5.77 |
| Contribution per bowl (12.00 − cost) | $6.79 | $6.23 |
| Cost as % of price | 43.4% | 48.1% |
That is $0.56 less per bowl. At 40 bowls a day for 30 days, 1,200 bowls × 0.56 = $672 a month going out in toppings nobody paid for.
What to do about free toppings
You have three options, and all three start with knowing the number.
- Build them into the price. To keep the $6.79 contribution at the real cost, the price has to be 5.77 + 6.79 = $12.56.
- Charge for extras. Include two toppings and charge for the rest. The customer who wants more pays more, and the one who does not stops subsidising them.
- Measure them. Put free toppings in portion dispensers or serve them with a fixed spoon. The cost stops depending on who is on shift.
What does not work is leaving it and hoping. An unmeasured free topping is a cost that grows exactly as fast as your sales.
Packaging, sizes and smoothies to go
Packaging weighs more on small bowls. A 12 oz bowl costs barely less to pack than a 16 oz one, yet it holds less acai and sells for less, so the packaging eats a bigger share of the price. Cost each size with its own grams and its own bowl; do not multiply. The guide to packaging cost shows how to price each piece.
If you also sell smoothies in cups, the method is the same: base, fruit, extras and packaging. Add the cup, lid, straw and ice, all covered in the guide to cups, lids, straws and ice. For a pressed or squeezed juice with no frozen base, see how to cost a fresh juice, and for the full picture of what a juice bar or café sells, the guide to drink costs.
Once you have the real cost, the menu price from cost and target food cost % tool gives you the price for whatever percentage you decide on.
Do it with the calculator
In the food cost calculator, enter each bowl ingredient with its grams, the packaging, and one line for free toppings using the average you weighed; it returns the cost per bowl and the price for the margin you want.
Frequently asked questions
Should I offer free toppings on smoothie bowls?
Only if their average cost is already in the price. Weigh what customers actually take for a week, add it to the bowl cost, and check that the price still leaves the contribution you need.
How do I cost fruit when I throw away peel and stalks?
Weigh what is left after prep from each kilo and divide the price per kilo by that weight. If a kilo of bananas gives you 650 g of usable fruit, the real cost is $1.60 ÷ 0.65 = $2.46 per usable kilo.
Does the bowl and spoon count in the cost?
Yes. The bowl, lid, spoon, napkin and sticker are used up with every sale, just like the fruit. For takeaway and delivery orders they are part of every unit.
Can I price a large bowl by scaling up the small one?
Cost the large bowl from scratch with its own weights. The base and toppings grow with size but the packaging does not grow in proportion, so multiplying the small price rarely gives the right number.