At the small wineries I worked at the red grapes fermented in open vats for several weeks outside. They were just sheltered by an overhang from possible rain. The owners and winemaker and helpers would have to push the must down every few hours day and night with a special tool. I forgot what it is called. They devised a harness so whoever was pushing the must down wouldn't fall into the big barrels, because as the hard crusty mixture was pushed down, carbon dioxide (?) fumes would escape and could make the person whoozy. The winemaker and one of the owners had several close calls nearly falling into the barrels.
Making wine using grapes is different from making wine from other produce as far as I have read.
Making wine for myself is different than making huge batches even at a small family winery.
I miss working at the small family winery. I miss the smells and the activity and the comraderie and the energy.
I used to love going down into the cellar among the barrels. It was always cold down there, even when it was unbearably hot upstairs. And it smelled like oak, wet cement, wine and musty.