Wild Dog Coffee Needs Help Pouring Espressos

Process Improvement Plan for Delivering an Espresso Beverage

Introduction

Wild Dog Coffee Company is a popular coffee shop that strives to provide high-quality beverages and exceptional customer service. To achieve this goal, it is important for the company to continuously monitor and improve their processes (Krajewski & Malhotra, 2022). In this context, this paper provides an analysis of the beverage service times data for 50 beverage preparation events using their order processing system. It also provides a cause-and-effect diagram to identify potential sources of variation in the espresso beverage preparation process. Based on this analysis, the paper offers recommended quality and customer service improvements for the company's beverage preparation process. By implementing these recommendations and continuously monitoring their processes, Wild Dog Coffee Company can ensure high-quality beverages and exceptional customer service to their customers.

The Process

To prepare an espresso beverage, the first step is for the barista to grind the coffee beans to the appropriate size for espresso. The customer then places an order with the cashier or server, and the order is transmitted to the barista station, either manually or electronically. Once the order is received, the barista selects the appropriate cup size and espresso shot quantity for the order. The espresso shots are extracted and poured into the cup. Steamed milk is then added to the cup, creating the desired beverage such as a latte or cappuccino. Any additional ingredients or flavors are added as per the customer's request. Finally, the completed beverage is handed to the customer either directly or via the server. The entire process is designed to ensure that the customer receives a high-quality espresso beverage that meets their individual taste preferences.

Espresso Beverage Preparation Process

Purpose

The Espresso Beverage Preparation Process aims to ensure that all espresso beverages are prepared to the same high standard, quickly and efficiently, to maximize customer satisfaction and maintain quality control.

Metrics

1. Beverage Quality: A measure of the percentage of beverages that meet the company's quality standards. The target value is 95%. This metric will be measured through periodic quality checks by the barista supervisor.

2. Order Accuracy: A measure of the percentage of orders that are correctly fulfilled. The target value is 99%. This metric will be measured through order audits conducted by the shift supervisor.

Procedure

Step 1: Order is submitted

1.1 Customer places an order with the cashier or server.

1.2 The order is transmitted to the barista station via the order management system.

1.3 The barista acknowledges receipt of the order.

Step 2: Beverage is prepared and handed to the customer

2.1 The barista selects the appropriate cup size and espresso shot quantity for the order. 2.2 The espresso shots are extracted and poured into the cup.

2.3 Steamed milk is added to the cup, creating the desired beverage (latte, cappuccino, etc.).

2.4 Any additional ingredients or flavors are added as per the customer's request.

2.5 The completed beverage is handed to the customer, either directly or via the server. 2.6 The barista confirms that the order is complete in the order management system.

End of Procedure.

Flowchart

Start

v

Grind the beans

v

Tamp the grounds

v

Insert the portafilter

v

Place the cup below

v

Start the shot

v

Time it

v

Stop it

v

Remove cup

v

Clean up

End

Data Analysis

Using the provided data for Wild Dog Coffee Company, it is possible to analyze the beverage service times to answer the questions, the first being is the process centered? To determine if the process is centered, one can calculate the process mean using the formula:

Process Mean = (sum of all values) / (number of values)

Process Mean = (88.28) / (50) = 1.77

The senior barista thinks the beverage delivery times should range between 2 and 3 minutes. Since the process mean is below the expected range, we can say that the process is not centered.

Is the process capable at 3-sigma? To determine if the process is capable at 3-sigma, one can calculate the process capability index (Cpk) using the formula:

Cpk = min((Process Mean - Lower Specification Limit)/(3 x Process Standard Deviation), (Upper Specification Limit - Process Mean)/(3 x Process Standard Deviation))

Assuming the specification limits are 2 and 3 minutes respectively, and the known process standard deviation is 0.5903 minutes, the outcome is:

Cpk = min((1.77 - 2)/(3 x 0.5903), (3 - 1.77)/(3 x 0.5903)) = min(-0.53, 0.93) = -0.53

Since the calculated Cpk is negative, one can see that the process is not capable at 3-sigma.

Is the process in statistical control? To determine if the process is in statistical control, one can create an individual control chart. Here, one can use the average of the beverage service times as the process mean, and calculate the upper and lower control limits using the formula:

Upper Control Limit (UCL) = Process Mean + 3 x (Process Standard Deviation / sqrt(number of samples)) Lower Control Limit (LCL) = Process Mean - 3 x (Process Standard Deviation / sqrt(number of samples))

Assuming the process mean is 1.77 minutes and the process standard deviation is 0.5903 minutes, the outcome is:

UCL = 1.77 + 3 x (0.5903 / sqrt(50)) = 2.21 LCL = 1.77 - 3 x (0.5903 / sqrt(50)) = 1.33

Then, one can plot the individual values on a chart and add the calculated control limits. From this plot, one can see that all the individual values fall within the control limits, indicating that the process is in statistical control.

To analyze the cause and effect of process variances, one can create a cause-and-effect diagram or fishbone diagram (Desai et al., 2015). The diagram can help identify the potential sources of variation in the espresso beverage preparation process at Wild Dog Coffee Company. Here is an example:

Espresso Beverage Preparation Process

Management Manpower Materials Method

- Poor training - Lack of - Poor quality - Inconsistent

resources ingredients technique

- Inadequate - Inaccurate - Inefficient

supervision measuring

- Inconsistent - Poor - Inadequate

policies/procedures equipment documentation

maintenance

In this diagram are included four of the 6 Ms: management, manpower, materials, and method. Based on this analysis, it is recommend the following quality and customer service improvements for the beverage preparation process at Wild Dog Coffee Company:

1. Management: Increase the training and education provided to the baristas, particularly on the importance of adhering to the standard beverage delivery times. This can help ensure that all baristas are following the same process and using the same techniques, which can help reduce process variation (Worley et al., 2016).

2. Manpower: Consider adjusting the number of baristas scheduled during peak hours to meet the demand for beverage orders. This can help prevent overburdening the baristas and reduce the likelihood of errors or delays in beverage preparation and delivery.

3. Materials: Monitor the quality and consistency of the ingredients used in the beverage preparation process. This can include ensuring that the beans are roasted to the proper temperature and that the milk used for steaming is fresh and properly stored.

4. Method: Consider implementing a standardized process for beverage preparation that includes clear steps for each type of beverage, as well as guidelines for equipment use and cleaning. This can help ensure that all baristas are following the same process and can help identify areas for improvement or optimization.

Overall, these recommendations are based on our analysis of the Beverage Service Times data and our assessment of potential sources of variation in the espresso beverage preparation process at Wild Dog Coffee Company. Implementing these recommendations can help reduce process variation and improve the quality and consistency of the beverage preparation process, which can ultimately lead to increased customer satisfaction and loyalty.

Additionally, recommended quality and customer service improvements for the process should include these steps: Train the baristas in the proper beverage preparation methods to reduce process variances caused by method. Ensure adequate staffing and support for the baristas to reduce process variances caused by manpower. Implement regular calibration and maintenance of the equipment used in the beverage preparation process to reduce process variances caused by measurement. Regularly monitor the pours and customer satisfaction via surveys or via feedback using social media.

To elaborate on the recommended quality and customer service improvements, let us first consider the training of the baristas. The proper beverage preparation methods must be clearly defined and consistently followed by all baristas to ensure that every customer receives a high-quality beverage that meets their expectations. Training programs can include both theoretical and practical components,.

Staffing and support are also critical factors that can impact the beverage preparation process. Inadequate staffing can lead to delays in beverage preparation, which can result in customers having to wait longer than necessary for their drinks. To avoid this, Wild Dog Coffee Company should ensure that they have enough baristas on hand during peak hours to handle the influx of customers.