8.Product Warranties

The Company offers a one-year warranty on all Keurig® hot beverage system brewers it sells. The Company provides for the estimated cost of product warranties, primarily using historical information and repair or replacement costs, at the time product revenue is recognized. Brewer failures may arise in the later part of the warranty period, and actual warranty costs may exceed the reserve. As the Company has grown, it has added significantly to its product testing, quality control infrastructure and overall quality processes. Nevertheless, as the Company continues to innovate, and its products become more complex, both in design and componentry, product performance may modulate, causing warranty rates to possibly fluctuate going forward. As a result, future warranty claims rates may be higher or lower than the Company is currently experiencing and for which the Company is currently providing in its warranty reserve.

The changes in the carrying amount of product warranties for the thirteen and thirty-nine weeks ended June 27, 2015 and June 28, 2014 are as follows (in thousands):

	Thirteen weeks ended						Thirty-nine weeks ended
	June 27, 2015			June 28, 2014			June 27, 2015			June 28, 2014
Balance, beginning of period	$	17,927		$	8,525		$	12,850		$	7,804
Provision related to current period	4,095			3,371			24,056			18,435
Change in estimate	—			(145		)	1,079			(2,628		)
Usage	(5,913		)	(4,716		)	(21,876		)	(16,576		)

Balance, end of period	$	16,109		$	7,035		$	16,109		$	7,035

For the thirteen and thirty-nine weeks ended June 27, 2015 the Company recorded recoveries of $0.3 million and $1.0 million, respectively. For the thirteen and thirty-nine weeks ended June 28, 2014 the Company recorded recoveries of $0.2 million and $0.9 million, respectively. The recoveries are under agreements with suppliers and are recorded as a reduction of warranty expense. The recoveries are not reflected in the provision charged to income in the table above.