Malting barley topped $5 a bushel this year and is looking at $6. A bushel of barley is about 48 pounds.
One pound of barley makes about a gallon of beer, so a bushel of barley will make roughly 50 gallons - 400 pints.
So one pint of beer has about 1.2 cents worth of barley in it.
If they’re saying rising barley prices are going to drive a pint up $3.60, either they expect barley to be selling for $1,800 a bushel or they’re full of s—t.
Add to that that not all barley is suitable for brewing. Pricing for those varieties is now on the order of $1.50 a pound retail. Even adding in the fact that large brewers will get bulk rate discounts, you're looking at a pretty steep increase in barley prices.
So adding it all together, and loooking at it from a percentage standpoint, if your costs increase roughly 30-40%, then your prices are going to follow suit. Hardly seems out of line to me.