I found sour grass along the garden path, its small yellow flowers and clover-like leaves catching the morning dew.

At the speakeasy, she ordered a Boston sour and admired its frothy, velvety finish.

At the summer garden party, we sampled three Boston sours and compared their lemon and whiskey balances.

The refinery adjusted its process to handle sour crude arriving from the Gulf.

He spread butter on a warm slice of sour dough and savored every bite.

The bakery displayed several sour doughs on the top shelf, each with its own unique crust and aroma.

I prefer my grandmother's sour-dough because its tangy flavor reminds me of childhood.

The distillery reused sour mash to jump-start the new barrel's fermentation, ensuring consistency in flavor.

After the summer heat, the crates were filled with sour milks that no one wanted to buy.

When I opened the fridge, I realized the soured milk had curdled and smelled sharp.