By mutual agreement between the grower and the dehydrator, deliveries of garlic or onion for dehydration purposes may be weighed by a certified weighmaster and issued a valid weight certificate in the area of production. Cost of weighing and transportation involved in moving such deliveries to and from the weigh station shall be shared equally by the grower and dehydrator. The weight shall be for the grower’s information and shall not be in lieu of any contractual provision between grower and dehydrator concerning delivered weights at the dehydrator’s plant or receiving station.