The closure of the Strait of Hormuz has not only put pressure on fuel and fertiliser supplies, it's also had an impact on the supply and cost of resins used in plastic packaging.

Dairy producers depend on reliable packaging to get their perishable products on supermarket shelves.

So what does this all mean for milk prices? 

• Guest: Brad Weir, Chair of the WA Dairy Industry Working Group
• Producer: Katie McAllister