Instant dry yeast sell-by date
I have a stock of IDY from two manufacturers, each expiring December 2018. My usual "go to" IDY is a 500g bulk vacuum pack import, the other a few 10g sachets from a local manufacturer. My "go to" IDY has not been delivering the sort of results I expected so I did as parallel test: 5g sugar diluted in 100g tap water at 28dC in separate tumblers into which I stirred in 10g of each. The attached picture, taken about an hour later, speaks for itself - import to the left and local to the right. One of the lessons to be learnt is not to trust BB/expiry dates!