Cost, dosing & menu maths
How Many Servings Are in 1 kg of Matcha?
A 1 kg bag gives you 1,000 ÷ your dose in grams. Before waste, that is about 667 servings at 1.5 g, 500 at 2 g and about 333 at 3 g. In practice you get fewer, because some powder is lost to spills, remakes, training and the end of the bag. This article shows how to turn the theoretical number into a usable one with your own loss rate.
The theoretical number
Theoretical servings per kg = 1,000 ÷ grams per serving
| Dose per serving | Arithmetic | Theoretical servings per kg |
|---|---|---|
| 1.5 g | 1,000 ÷ 1.5 | about 667 |
| 2 g | 1,000 ÷ 2 | 500 |
| 2.5 g | 1,000 ÷ 2.5 | 400 |
| 3 g | 1,000 ÷ 3 | about 333 |
| 4 g | 1,000 ÷ 4 | 250 |
This applies to any 1 kg bag, including Ceremonial Barista Matcha in a 1 kg bag and Ceremonial Matcha in a 1 kg bag. The serving count depends on your dose, not on the product. Which dose suits which cup is covered in grams of matcha per latte by cup size.
From theoretical to usable
No bar turns every gram into a sold drink. To get a realistic count, reduce the quantity first, then divide.
Usable quantity = purchased × (1 − loss %)
Usable servings = usable quantity in grams ÷ grams per serving
Worked example
Take a 2 g dose and a loss of 8%. The 8% is an example figure to show the arithmetic; replace it with your own measured rate.
- Usable quantity: 1,000 g × (1 − 0.08) = 1,000 × 0.92 = 920 g
- Usable servings: 920 ÷ 2 = 460
So instead of 500 servings, you plan on 460.
Loss scenarios
The loss percentages below are example scenarios, not industry averages. They show how quickly the count moves.
| Loss (example) | 1.5 g dose | 2 g dose | 3 g dose |
|---|---|---|---|
| 0% | 1,000 ÷ 1.5 ≈ 667 | 1,000 ÷ 2 = 500 | 1,000 ÷ 3 ≈ 333 |
| 5% | 950 ÷ 1.5 ≈ 633 | 950 ÷ 2 = 475 | 950 ÷ 3 ≈ 317 |
| 10% | 900 ÷ 1.5 = 600 | 900 ÷ 2 = 450 | 900 ÷ 3 = 300 |
| 15% | 850 ÷ 1.5 ≈ 567 | 850 ÷ 2 = 425 | 850 ÷ 3 ≈ 283 |
At 2 g, every 5 points of loss removes 25 servings from the bag. That is why it pays to measure your loss once rather than guess it.
Dose drift: the hidden loss
The table assumes the dose on your recipe card is the dose in the cup. If baristas scoop by eye, it often is not. Here is an example: a recipe says 2 g, but the real average is 2.3 g.
- Planned servings: 1,000 ÷ 2 = 500
- Actual servings: 1,000 ÷ 2.3 ≈ 435
That is about 65 fewer drinks from the same bag before any spills. Weighing ten drinks during a busy shift tells you your real average.
How to measure your loss rate
You need one bag and a till that counts matcha drinks.
- Note the date you open the bag.
- Count every matcha serving sold until the bag is empty.
- Expected use = servings × grams per serving.
- Loss % = (grams purchased − expected use) ÷ grams purchased.
For example, if you sold 440 drinks at 2 g: expected use = 440 × 2 = 880 g, and loss = (1,000 − 880) ÷ 1,000 = 12%. These numbers are illustrative; use your own. Matcha cost per serving uses the same loss figure to calculate the real cost per drink.
Fill-in worksheet
| Line | Your value | Example |
|---|---|---|
| A. Grams in the bag | [ ] | 1,000 |
| B. Grams per serving | [ ] | 2 |
| C. Loss % (as a decimal) | [ ] | 0.08 |
| D. Theoretical servings = A ÷ B | [ ] | 500 |
| E. Usable grams = A × (1 − C) | [ ] | 920 |
| F. Usable servings = E ÷ B | [ ] | 460 |
If you run more than one recipe (for example, a standard latte and a larger iced drink), fill in a row per recipe and split the bag by the share of drinks each recipe takes. The same applies when one bag serves several outlets, as in matcha for hotels.
What to do with the number
Usable servings feed straight into two decisions.
- How long a bag lasts. Theoretical stock duration = usable quantity ÷ daily use. At 920 g usable and 40 drinks a day at 2 g (80 g a day, example figures), that is 920 ÷ 80 = 11.5 days.
- When to reorder. Once you know daily use, you can set a reorder point. See reorder point and safety stock for matcha.
Next step
Weigh your real dose on ten drinks, fill in the worksheet, and use the usable serving count to plan your order. If you are still choosing a product, start with a 10 g sample of each matcha before ordering a 1 kg bag.