1) Remove vial from refrigerator. Allow to warm to room temperature for at least 2 hours. 2) Recommended Process for Use of Flask: Double Boiler Method It is important for your safety to heat water in the flask with a heat source that distributes heat evenly. Our manufacturer has confirmed that direct heat to the glass can break down its integrity and break if the heat source doesn't distribute evenly. Morebeer! recommends using the "double boiler method." This process involves using a boiling water bath on the outside of the flask to heat up the water inside the flask. All you need is a kettle 3 gallons or larger. This process is much safer and efficient. If the flask should break or boil over, your kettle will be there to collect the contents, thus keeping your stove clean and keeping you away from potential harm. Or just boil your water separately in pot and pour into your flask. 3) In an Erlenmeyer flask, mix light Dry Malt Extract (DME), a pinch of yeast nutrient mix, and boiled water. Use 1/2 cup DME per 900ml of water. Watch carefully to prevent boilovers. 4) Cover flask with aluminum foil (or a stopper and a sanitary filter). Place in ice bath or freezer to cool. After initial cooling allow flask to adjust to room temperature. 5) Open vial and pour into flask at a temperature from 70-80F. Seal with foil or airlock. 6) Place flask somewhere warm 65-75F. Swirl as often as possible the first 24 hours to help oxygenate. Wait 24-48 hours, then pitch into fermenter. If you do not use your starter due to time constraints, refrigerate it well sealed, and re-feed the yeast the day of brewday with fresh wort. Ale yeast can last 2-3 weeks in a refrigerator. Lager yeast can last 4-6 weeks in a refrigerator. 7) Do not use a stir plate for more than 48 hours as it can over-oxygenate your yeast starter. Do not used .5 micron oxygenation system in a yeast starter. It can contribute too much ester production for its volume.
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