The same product sits on a deli shelf in different pack sizes. On unit price the large pack always looks better, but the calculation is incomplete.
How does pack size affect consumption?
An opened pack sets the rhythm of consumption.
Opening a five-hundred-gram pack means the product has to be eaten within a certain window.
That window is not long enough in most households.
Pastırma is an intense product; daily consumption is low.
Where a household of two eats five slices at breakfast, that is around 25 grams a day.
A five-hundred-gram pack lasts twenty days.
But opened pastırma keeps ten to fifteen days.
The last part of the pack has therefore lost its quality.
That is a hidden cost.
A small pack removes the problem.
How long does it keep once opened?
That is the most important figure for the decision.
An unopened vacuum pack keeps six to twelve months.
Oxygen enters the moment it opens and the clock starts.
A whole block of pastırma keeps ten to fifteen days after opening.
Sliced pastırma keeps three to five days.
Product with the çemen scraped off keeps less: five to eight days.
Those times apply in a fridge with correct storage.
The product should be wrapped in paper; plastic traps moisture and creates a tacky surface.
An airtight container can be used too.
At the end of that window the product does not spoil but hardens and loses aroma.
| Pack | Suits | After opening | Waste risk |
|---|---|---|---|
| 100 g sliced | 1-2 people | 3-5 days | Very low |
| 200 g sliced | 2-3 people | 3-5 days | Low |
| 500 g block | 4+ people | 10-15 days | Moderate |
| 1 kg block | A large household | 10-15 days | High |
| 3-5 kg block | A business | 15-20 days | Low in a business |
How is waste calculated?
A unit price comparison is an incomplete calculation.
The correct calculation runs on the product actually eaten.
An example: a five-hundred-gram pack at 300 lira and a hundred-gram pack at 70.
The unit prices are 600 and 700 lira per kilogram respectively.
The large pack looks 14 percent cheaper.
But if 20 percent of the five-hundred-gram pack spoils before being eaten, the real cost rises to 750 lira a kilogram.
The small pack is then more economical.
The waste rate varies by household.
In a household that eats the product quickly the large pack has the advantage.
In one that eats slowly, the small pack.
The decision follows from measuring the rate of consumption.
Measuring once suffices: how long does a pack last.
Which pack for which household?
There are four scenarios.
A single-person household: the hundred-gram pack suits best.
Where the product is eaten once or twice a week that size creates no waste.
A two-person household: a hundred or two hundred grams.
Two hundred grams suits regular breakfast use; a hundred grams suits occasional use.
A four-person household: two hundred grams or a five-hundred-gram block.
Where a block is bought, slicing should be done at home and the remainder stored whole.
That markedly extends the shelf life.
A large household with regular consumption: five hundred grams and above makes sense.
A block has one further advantage: the slice thickness can be set as wanted.
Block or sliced?
That is a decision separate from pack size.
A block keeps longer; its surface area is small and oxidation slow.
Sliced product is practical and needs no preparation.
But in sliced product every slice meets air.
The shelf life is markedly shorter.
Where a block is bought and sliced at home, a sharp knife is required.
Pastırma is dense; taking thin slices with a dull blade is difficult.
It should be sliced straight from the fridge; it cuts more cleanly cold.
The sliced portion should be eaten immediately and the remaining block wrapped in paper and returned to the fridge.
That method gives both freshness and control of slice thickness.
Which size do businesses use?
The calculation differs in a business.
With a high rate of consumption the large block has the advantage.
Blocks of three to five kilograms are preferred.
The daily requirement is sliced on a machine.
That gives the best result for both cost and freshness.
But small packs have a place in a business too.
Buying a large block for a slow-selling line creates waste.
For a product used rarely on a menu, a hundred or two-hundred-gram pack makes more sense.
Portion packs can also be used directly in delivery and ready-product sales.
Some businesses sell hundred-gram packs at retail as well.
That creates an additional revenue line.
What changes in storage?
Pack size determines the storage method too.
A small pack is generally finished within a few days of opening; no special precautions are needed.
Storage is more critical for a large block.
It should be wrapped in paper and kept in a part of the fridge that is not the coldest.
Close to zero the product dries out too far.
Two to four degrees suits.
The cut face dries and darkens; that is not spoilage.
The first slice need not be discarded, though a thin layer can be taken off if preferred.
Freezing is not advised for either size; the fat in pastırma separates on thawing.
The texture deteriorates and the product leaves a dry sensation.
As a product of low water activity there is no need to freeze it anyway; it keeps long enough in a fridge.
