Wort Whipper Compact Magnetic Stir Plate - USB Powered for Yeast StartersThe Wort Whipper Stir Plate is a revolutionary, super compact tool designed for yeast propagation. Unlike bulky traditional stir plates, this unit features a low profile design and is powered via USB, making it portable and easy to use anywhere. A stir plate is essential for keeping yeast in constant contact with nutrients and oxygen, which can increase your viable cell count by up to 300% compared to a static starter. Includes a PTFE coated magnetic