| HA355 : The Class : Food and Beverage : Food Purchasing : Lesson4-2-1 |
Changes in food purchasing
Food purchasing procedures are in a constant state of change. Some of these changes are:
The traditional purchase procedure is to use a selected number of purveyors. Click here to see a flow chart, which shows the steps in a traditional purchase procedure.
However a number of foodservice organizations are going to one stop purchasing because of the following advantages:
Who should purchase
The purchasing function is critical to the success of the foodservice company. The assignment of this function should recognize the following considerations:
A major factor in ordering food is maintaining the right level of inventory. If too high a balance is allowed we end up with too much money tied up with added interest cost. Also excessive levels of inventory can lead to high spoilage .Low inventory, on the other hand can lead to shortages and poor customer service. Examining a number of factors to arrive at the proper size order and timing can control inventory levels. The following factors need to be considered:
We can illustrate how all of this can work by looking at the following example:
|
Reorder amount
|
|
| Lead time-days |
5
|
| daily use rate |
1,000
|
| order amount |
5,000
|
| safety level |
2,000
|
| order at |
7,000
|
In the above example we are using an inventory item at 1,000 units per day. Since it takes an average of five days between the order and delivery, we need to order 5,000 units. To that we add a safety level of 2,000 units and arrive at a reorder point of 7,000 units. Lets further assume that there are 20,000 units on hand and we institute a procedure of ordering 5,000 units when inventory drops below 7,000 units. The inventory ledger would show the following activity:
|
Day
|
Use
|
Order
|
Recieve
|
Balance
|
|
0
|
20,000
|
|||
|
1
|
1,000
|
19,000
|
||
|
2
|
1,000
|
18,000
|
||
|
3
|
1,000
|
17,000
|
||
|
4
|
1,000
|
16,000
|
||
|
5
|
1,000
|
15,000
|
||
|
6
|
1,000
|
14,000
|
||
|
7
|
1,000
|
13,000
|
||
|
8
|
1,000
|
12,000
|
||
|
9
|
1,000
|
11,000
|
||
|
10
|
1,000
|
10,000
|
||
|
11
|
1,000
|
9,000
|
||
|
12
|
1,000
|
8,000
|
||
|
13
|
1,000
|
7,000
|
||
|
14
|
1,000
|
5,000
|
6,000
|
|
|
15
|
1,000
|
5,000
|
||
|
16
|
1,000
|
4,000
|
||
|
17
|
1,000
|
3,000
|
||
|
18
|
1,000
|
5,000
|
7,000
|
|
|
19
|
1,000
|
5,000
|
-
|
6,000
|
|
20
|
1,000
|
-
|
5,000
|
|
|
21
|
1,000
|
-
|
4,000
|
|
|
22
|
1,000
|
-
|
3,000
|
|
|
23
|
1,000
|
5,000
|
7,000
|
|
|
24
|
1,000
|
5,000
|
-
|
6,000
|
Once the policy is instituted the inventory balance will vary from a high of 7,000 units and a low of 3,000 units. You can down load a file graph that shows the inventory balances from day 0 out to day 60. inventory.xls
The above example is simplified. But even with varying usage figures that above principle can be applied using average usage figures.
Economic order quantities-formula
A quantitative approach to ordering of a regularly purchased item is economic order quantity (EOQ). There are two types of cost to consider when ordering a product: the cost of placing the order and the cost of carrying the inventory. Depending on the frequency of ordering these two cost move in opposite directions. With frequent ordering, inventory is kept low but ordering costs are high. If less frequent, but larger orders, are made the cost of ordering goes down but the carrying cost of inventories goes up. The EOQ gives us a happy medium that minimizes the total of the two costs.
Lets illustrate this with the following example:
|
Terms:
|
Symbol
|
Value
|
| Cost of making order | F |
$ 10.00
|
| Annual usage of product in units | S |
1,000
|
| Annual inventory carrying cost | C |
20%
|
| Purchase pirce per unit of product | P |
$ 15.00
|
The EOQ is calculated by the following formula:

Purchasing methods
There are many different method of purchasing food. Besides one-stop purchasing, which we examined above, there are six methods:
Open market buying
This is the most traditional method of purchasing. The basic steps of this method are: (1) determine the products to be ordered, (2) obtain price quotes for all products to be ordered, and (3) allocate order to purveyors to obtain lowest costs commensurate with service and quality. Click here to down load flow chart showing traditional purchase sequence. TRADITION PURCHASING FLOW CHART.doc
Sealed bid buying
This method is used by large organizations and government agencies. The basic steps of this method are: (1) determine quantity of the product to be ordered, (2) prepare detail product specifications, (3) request sealed bids from purveyors, and (3) select the best price.
Cost plus buying
Under this method the operator pay the purveyor's cost plus a negotiated percent. This method is not frequently used and is usually confined to large organizations. The supplier provides a minimum of service and receives all the business of the operator. The operator needs to periodically verify the accuracy of the supplier's costs
Co-op buying
This method is used by groups of similar types of organizations such as schools, hospitals and fraternities. By working together these operators can obtain more favorable terms from purveyors.
Warehouse club buying
This approach is useful for smaller restaurants.
Contract purchasing
This approach is used by large organization for high volume products. Besides price benefits this method cuts down paperwork. Pricing can on a cost plus a fixed fee basis; formulae pricing, or fee for service.
Steward's market order sheet
The steward's market sheet is a purchase order sheet that is a great help in purchasing (textbook fig. 10-1) the form shows the foods that are likely to be used and has columns to list how much is on hand, how much is to be ordered and the bids received from different purveyors. The purchaser uses the form by calling each vendor and records the quote on the sheet. He then circles the low prices and then calls the purveyors back to place the order. Computer purveyor quote forms are also coming into use (textbook fig. 10.2).
Standard specifications
In order purchase the correct quality and type foods foodservice operators need to use written standard specifications. With specifications there can be precise communications between the operator and the purveyors describing products ordered. Specifications should be written and maintained by the employee responsible for purchasing, with copies to the purveyor and the employee responsible for receiving. The specification document for each product should include the following information:
For some purchases, particularly meats, it is necessary to consider the yield
that is actually available from the gross weight of meat purchased. The terms
AP applies to "as purchased" and EP to "edible portion." The buyer needs to
aware of this when ordering meat and figuring costs. Assume an operator is planning
a rib banquet for 100 customers. The EP, or edible portion is 9 ounces (.5625
lbs). The AP purchase of the ribs of beef is $3.00 per pound and, after trimming
and cooking, a yield of 60% is expected. We need to know how many pound of rib
do we need to purchase and what is the cost per portion of the banquet meals.
The information we are dealing with is as follows:
| Yield Factors | Term | Value |
| Edible portion weight-lbs | Ep |
0.5625
|
| Yield conversion factor | Y |
60%
|
| AP price | P |
$ 3.00
|
| Meals served | M |
100
|
The rib order, "Ap" can be calculated by the following:
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Trade credit and payment policies
Payment terms are an important part of the purchase arrangement. Purveyors will generally allow 15 to 30 days for payment after delivery. If payment is late, the purveyor might assess a penalty such as 1.5 percent per month (18% annually) of the payment. As an incentive many purveyors provide cash discounts if payment is made early. For example the terms might be:"2/10, N30." This means that if payment is made within 10 days a 2% discount can be taken; otherwise the full amount must be paid within 30 days. Generally cash discounts are worth taken. Assume that we are considering paying an invoice of $ 1,000 with the above terms. The 2% discount can be converted to an annual rate:
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Ethics in purchasing
The food purchaser needs to keep his relationship with the vendor in a courteous but formal manner. The danger can arise when a purveyor tries to influence the food purchasers by personal gifts and favors. The operator should have a policy of either no gifts or a dollar limitation of gifts. The best policy is to accept no gifts.
Go back to Topic 2: Food Purchasing
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