1. Personally, I think Yosemite yeast box set is still very useful. Belongs to one of those little artifacts or something. It's cheap and convenient for you. You can buy one to try, and the price is not very high.

I trust this brand and have been using it. This four-piece set of Schizosaccharomyces yeast looks very tall, and the products inside have a good skin feeling, are not sticky and are well absorbed. Personally like it.