Problem with tap water?
I tried proofing a teaspoon of active dry yeast (all from the same container) in a little water and found it proofs way less in tap water than it does in bottled water. Is there something wrong with my tap water or is this a common thing?
I heated the water to 105F in all cases.
The one on the left has 1 tsp yeast, 1 tsp sugar, tap water. The next has 1 tsp yeast, no sugar, tap water. The next is 1 tsp yeast, 1 tsp sugar, bottled water. and the last one has 1 tsp yeast, no sugar, bottled water.