Time per day	8	hours		Batch Size	8	lbs
	Time per day	480	minutes		Donut Size	2	oz
	Days per week	7	days		Donuts/batch	64	donuts/batch
	Current Sales	1100	doz/day
	Target	13,200	donuts/day
	takt time	2.18	seconds/donut
		Step 1: Batching	Step 2: Mixing	Step 3: Extruding	Step 4: Frying	Step 5: Glazing	Step 6:Customize
	Setup time (mins)			1.5
	Setup time (seconds)			90
	Process time (mins/donut/extruder)	2	2.5	0.06	1.5	0.75	0.029
	Process time (per batch)			1.19	1.5	0.75	1.867
	Setup time + Process time (per batch)			2.69
	Capacity (batches/day)	240.0	192.0	178.8			257.1
	Capacity (donuts/day/machine)	15,360.00	12,288.00				16,457.14
	Number of machines/cutters	1	2	3			1
	Capacity (donuts/day)	15,360.00	24,576.00	11,440.55			16,457.14
	Dozens	1,280.00	2,048.00	953.38
	cycle time	1.88	1.17	2.52			1.75
	Whole batches/day	240.0	192.0	178.0			257.0
	Capacity (using whole batches)	15,360.00	24,576.00	11,392.00			16,448.00
	cycle time (using whole batches)	1.88	1.17	2.53			1.75

Third option: Reduce the setup time. Finally, Dewey Johnson has realized that if he could reduce the time it takes to clean and prep the extruder before each batch, he can cut out enough non-value-added time to produce what is needed without any additional wear and tear and without purchasing new equipment. A truly lean-thinking solution! Working with whole batches only (no partial batches allowed), what is the required setup time in minutes, rounded to the nearest tenth of a minute, to produce the needed daily demand while keeping only three cutters on the extruder and maintaining a batch size of eight pounds?