performance of living yeast cells can be affected in many ways.
When ordering liquid yeasts, it is important to minimize transit
time and overexposure to heat. If this is compounded by other
factors, the performance can become unsatisfactory.
reason, we recommend ordering frozen gel packs along with your
liquid yeast when temperatures are expected to be above about 70
degrees F along the route. Additionally, we will NOT ship liquid
yeasts outside of the U.S. If you order a liquid yeast, you can
expect us to make a reasonable substitution of dry yeast. Dry forms
are more stable, and more likely to survive the trip. We'd rather
give you a yeast that we know will make it. There are many quality
dry yeasts, and this is a better choice.
video on how to use the Wyeast Activator "smack-packs" click
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